CVE-2008-3903
EPSS 0.73%
Description
Asterisk Open Source 1.2.x before 1.2.32, 1.4.x before 1.4.24.1, and 1.6.0.x before 1.6.0.8; Asterisk Business Edition A.x.x, B.x.x before B.2.5.8, C.1.x.x before C.1.10.5, and C.2.x.x before C.2.3.3; s800i 1.3.x before 1.3.0.2; and Trixbox PBX 2.6.1, when Digest authentication and authalwaysreject are enabled, generates different responses depending on whether a SIP username is valid, which allows remote attackers to enumerate valid usernames.
How to fix CVE-2008-3903
To remediate CVE-2008-3903, upgrade the affected package to a fixed version below.
- Debian/asterisk—upgrade to 1:1.6.1.0~dfsg-1 or later
Is CVE-2008-3903 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1:1.6.1.0~dfsg-1