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Unrated severityNVD Advisory· Published Jun 10, 2014· Updated May 6, 2026

CVE-2009-5023

CVE-2009-5023

Description

The (1) dshield.conf, (2) mail-buffered.conf, (3) mynetwatchman.conf, and (4) mynetwatchman.conf actions in action.d/ in Fail2ban before 0.8.5 allows local users to write to arbitrary files via a symlink attack on temporary files with predictable names, as demonstrated by /tmp/fail2ban-mail.txt.

Affected products

30
  • Fail2ban/Fail2ban30 versions
    cpe:2.3:a:fail2ban:fail2ban:*:*:*:*:*:*:*:*+ 29 more
    • cpe:2.3:a:fail2ban:fail2ban:*:*:*:*:*:*:*:*range: <=0.8.4
    • cpe:2.3:a:fail2ban:fail2ban:0.1.0:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.1.1:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.1.2:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.3.0:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.3.1:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.4.0:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.4.1:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.5.0:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.5.1:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.5.2:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.5.3:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.5.4:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.5.5:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.6.0:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.6.1:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.7.0:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.7.1:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.7.2:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.7.3:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.7.4:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.7.5:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.7.6:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.7.7:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.7.8:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.7.9:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.8.0:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.8.1:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.8.2:*:*:*:*:*:*:*
    • cpe:2.3:a:fail2ban:fail2ban:0.8.3:*:*:*:*:*:*:*

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

4

News mentions

0

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