CVE-2012-5642
UnknownEPSS 3.12%
Last modified
CVE-2012-5642 is a vulnerability of currently unknown severity. server/action.py in Fail2ban before 0.8.8 does not properly handle the content of the matches tag, which might allow remote attackers to trigger unsafe behavior in a custom action file via unspecified symbols in this content.. EPSS estimates a 3.12% chance of exploitation in the next 30 days.
Description
server/action.py in Fail2ban before 0.8.8 does not properly handle the content of the matches tag, which might allow remote attackers to trigger unsafe behavior in a custom action file via unspecified symbols in this content.
Metrics
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Fail2ban | Fail2ban | <= 0.8.7.1 |
| Fail2ban | Fail2ban | 0.1.0 |
| Fail2ban | Fail2ban | 0.1.1 |
| Fail2ban | Fail2ban | 0.1.2 |
| Fail2ban | Fail2ban | 0.3.0 |
| Fail2ban | Fail2ban | 0.3.1 |
| Fail2ban | Fail2ban | 0.4.0 |
| Fail2ban | Fail2ban | 0.4.1 |
| Fail2ban | Fail2ban | 0.5.0 |
| Fail2ban | Fail2ban | 0.5.1 |
| Fail2ban | Fail2ban | 0.5.2 |
| Fail2ban | Fail2ban | 0.5.3 |
| Fail2ban | Fail2ban | 0.5.4 |
| Fail2ban | Fail2ban | 0.5.5 |
| Fail2ban | Fail2ban | 0.6.0 |
| Fail2ban | Fail2ban | 0.6.1 |
| Fail2ban | Fail2ban | 0.7.0 |
| Fail2ban | Fail2ban | 0.7.1 |
| Fail2ban | Fail2ban | 0.7.2 |
| Fail2ban | Fail2ban | 0.7.3 |
| Fail2ban | Fail2ban | 0.7.4 |
| Fail2ban | Fail2ban | 0.7.5 |
| Fail2ban | Fail2ban | 0.7.6 |
| Fail2ban | Fail2ban | 0.7.7 |
| Fail2ban | Fail2ban | 0.7.8 |
| Fail2ban | Fail2ban | 0.7.9 |
| Fail2ban | Fail2ban | 0.8.0 |
| Fail2ban | Fail2ban | 0.8.1 |
| Fail2ban | Fail2ban | 0.8.2 |
| Fail2ban | Fail2ban | 0.8.3 |
| Fail2ban | Fail2ban | 0.8.4 |
| Fail2ban | Fail2ban | 0.8.5 |
| Fail2ban | Fail2ban | 0.8.6 |
| Fail2ban | Fail2ban | 0.8.7 |
References
- https://github.com/fail2ban/fail2ban/commit/83109bcPatch, Vendor Advisory
- https://github.com/fail2ban/fail2ban/commit/83109bcPatch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2012-5642?
server/action.py in Fail2ban before 0.8.8 does not properly handle the content of the matches tag, which might allow remote attackers to trigger unsafe behavior in a custom action file via unspecified symbols in this content.
How severe is CVE-2012-5642?
Severity scoring for CVE-2012-5642 is pending analysis. The EPSS model estimates a 3.12% probability of exploitation in the next 30 days.
How do I fix CVE-2012-5642?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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Are you affected by CVE-2012-5642?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
