Security readout for executives and security teams
CVE-2009-5023 is a local file-write issue in Fail2ban before 0.8.5. Certain bundled action configurations used predictable temporary file names, allowing a local user to abuse symlinks and cause Fail2ban to write to unintended files. This mainly matters on shared or multi-user systems. Exposure is most likely where Fail2ban before 0.8.5 is installed and the affected action configurations are enabled or present on systems with untrusted local users. Internet-only attackers are not described in the supplied sources. Treat as a patching and hardening item for legacy or shared Linux systems. It is not described as remotely exploitable, but arbitrary local file writes can become operationally serious where local users or compromised low-privilege accounts exist. Mitigation focus: Upgrade Fail2ban to version 0.8.5 or a vendor-supported fixed package.; Review Gentoo, Debian, or distribution guidance for backported fixes.; Disable or replace affected action configurations if immediate upgrade is delayed..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2009-5023 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/fail2ban/fail2ban/blob/sdist/0.8.5/ChangeLogCVE reference · x_refsource_CONFIRM
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=544232CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
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