VULNERABILITY INTELLIGENCE
CVE-2009-5023
CVSS score4.7 MEDIUM
EPSS probability0.34%
CISA KEVNot currently listed
Published2014-06-10
Last modified2026-06-16
CVSS vectorAV:L/AC:M/Au:N/C:N/I:C/A:N
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.
Weakness classification
- CWE-59: Improper Link Resolution Before File Access ('Link Following')