CVE-2009-5023

EUVD-2009-4981
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.
Link Following
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.7 UNKNOWN
LOCAL
MEDIUM
AV:L/AC:M/Au:N/C:N/I:C/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 14%
Affected Products (NVD)
VendorProductVersion
fail2banfail2ban
𝑥
≤ 0.8.4
fail2banfail2ban
0.1.0
fail2banfail2ban
0.1.1
fail2banfail2ban
0.1.2
fail2banfail2ban
0.3.0
fail2banfail2ban
0.3.1
fail2banfail2ban
0.4.0
fail2banfail2ban
0.4.1
fail2banfail2ban
0.5.0
fail2banfail2ban
0.5.1
fail2banfail2ban
0.5.2
fail2banfail2ban
0.5.3
fail2banfail2ban
0.5.4
fail2banfail2ban
0.5.5
fail2banfail2ban
0.6.0
fail2banfail2ban
0.6.1
fail2banfail2ban
0.7.0
fail2banfail2ban
0.7.1
fail2banfail2ban
0.7.2
fail2banfail2ban
0.7.3
fail2banfail2ban
0.7.4
fail2banfail2ban
0.7.5
fail2banfail2ban
0.7.6
fail2banfail2ban
0.7.7
fail2banfail2ban
0.7.8
fail2banfail2ban
0.7.9
fail2banfail2ban
0.8.0
fail2banfail2ban
0.8.1
fail2banfail2ban
0.8.2
fail2banfail2ban
0.8.3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
fail2ban
bookworm
1.0.2-2
fixed
bullseye
0.11.2-2
fixed
lenny
no-dsa
sid
1.1.0-7
fixed
trixie
1.1.0-7
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
fail2ban
hardy
ignored
lucid
ignored
maverick
ignored
natty
ignored
oneiric
not-affected
precise
not-affected
quantal
not-affected
raring
not-affected
saucy
not-affected