CVE-2014-7169 — GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed…¶
Key facts
CVE-2014-7169 is a Critical (9.8) vulnerability: GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed…. This entry ships a detection-only PoC and a Docker test lab. It is on the CISA Known Exploited Vulnerabilities (KEV) catalog (added 2022-01-28), confirming active exploitation in the wild.
Actively exploited — on the CISA KEV catalog
CVE-2014-7169 is listed on the CISA Known Exploited Vulnerabilities (KEV) catalog (added 2022-01-28), confirming exploitation in the wild. Federal remediation deadline: 2022-07-28. Prioritise patching and deploy the detection and prevention rules below.
| CVE | CVE-2014-7169 |
| Severity | Critical (9.8) |
| CISA KEV | Actively exploited (added 2022-01-28) |
| Detection / prevention | — |
| PoC | poc.py |
| Source | 2014/CVE-2014-7169/ |
Details¶
English | 한국어
Description¶
GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed function definitions in the values of environment variables, which allows remote attackers to write to files or possibly have unknown other impact via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-6271.
Vulnerability Details¶
| Property | Value |
|---|---|
| CVE ID | CVE-2014-7169 |
| Type | RCE |
| CVSS Score | 9.8 |
Proof of Concept¶
Download¶
# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2014/CVE-2014-7169/poc.py
Usage¶
# Run PoC against target
python3 poc.py --target <TARGET_URL>
# With authentication
python3 poc.py --target <TARGET_URL> --username <USER> --password <PASS>
⚠️ Warning: This PoC is for authorized security testing only. It uses detection-only techniques and does not exploit or damage target systems.
Test Lab¶
This repository includes a Docker-based test environment with both vulnerable and patched applications.
Quick Start¶
# Clone and navigate to CVE directory
cd CVE-2014-7169
# Start both applications
docker-compose up -d
# Run tests
./run-tests.sh # Linux/Mac
./run-tests.ps1 # Windows PowerShell
Application Endpoints¶
| Application | URL | Status |
|---|---|---|
| Vulnerable App | http://localhost:8080 | Shows vulnerability |
| Patched App | http://localhost:8081 | Demonstrates fix |
Directory Structure¶
├── README.md # English documentation
├── README_KO.md # Korean documentation
├── poc.py # PoC detection script
├── docker-compose.yml # Container orchestration
├── run-tests.sh # Linux/Mac test runner
├── run-tests.ps1 # Windows test runner
├── vulnerable-app/ # Vulnerable version
│ ├── app.py
│ ├── Dockerfile
│ └── requirements.txt
└── patched-app/ # Fixed version
├── app.py
├── Dockerfile
└── requirements.txt
References¶
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- http://secunia.com/advisories/60063
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- http://secunia.com/advisories/61188
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- http://secunia.com/advisories/61291
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- http://www.mandriva.com/security/advisories?name=MDVSA-2015:164
- http://www.novell.com/support/kb/doc.php?id=7015701
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- http://www.oracle.com/technetwork/topics/security/bashcve-2014-7169-2317675.html
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- http://www.securityfocus.com/archive/1/533593/100/0/threaded
- http://www.ubuntu.com/usn/USN-2363-1
- http://www.ubuntu.com/usn/USN-2363-2
- http://www.us-cert.gov/ncas/alerts/TA14-268A
- http://www.vmware.com/security/advisories/VMSA-2014-0010.html
- https://access.redhat.com/articles/1200223
- https://access.redhat.com/node/1200223
- https://help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+Data+Center+Operation+Software+Vulnerability+Fixes
- https://kb.bluecoat.com/index?page=content&id=SA82
- https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10648
- https://kc.mcafee.com/corporate/index?page=content&id=SB10085
- https://support.apple.com/kb/HT6535
- https://support.citrix.com/article/CTX200217
- https://support.citrix.com/article/CTX200223
- https://support.f5.com/kb/en-us/solutions/public/15000/600/sol15629.html
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c04497075
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c04518183
- https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk102673&src=securityAlerts
- https://www.arista.com/en/support/advisories-notices/security-advisories/1008-security-advisory-0006
- https://www.exploit-db.com/exploits/34879/
- https://www.suse.com/support/shellshock/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-7169
Generated by PoC Generator on 2026-07-04T22:33:29.417253624
Frequently asked questions¶
What is CVE-2014-7169?¶
CVE-2014-7169 is a Critical (9.8) vulnerability: GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed…. This entry ships a detection-only PoC and a Docker test lab. It is on the CISA Known Exploited Vulnerabilities (KEV) catalog (added 2022-01-28), confirming active exploitation in the wild.
How do I detect CVE-2014-7169?¶
Run the detection-only PoC included with this entry against your Docker test lab to confirm whether a target is affected; pair it with your own IDS logging.
How do I block or mitigate CVE-2014-7169?¶
Upgrade to a fixed version per the vendor advisory; the NVD record lists the affected versions. Use the included PoC to verify your remediation.
Is CVE-2014-7169 actively exploited?¶
Yes. CVE-2014-7169 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, added 2022-01-28, which means it has been exploited in the wild. CISA set a federal remediation deadline of 2022-07-28. Prioritise patching and deploy the detection and prevention rules above.
For authorized security testing and research only. See the full source and NVD record.