CVE-2008-3903 Information disclosure in n/a
Remote attackers can enumerate valid SIP usernames due to inconsistent authentication responses when specific security features are enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2008-3903?
CVE-2008-3903 is a low-severity vulnerability in n/a, published on 4 Sep 2008. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-200
Which versions are affected by CVE-2008-3903?
It affects 2 products.
Products include Asterisk P B X, Trixbox Pbx.
How do I fix CVE-2008-3903?
Upgrade to a fixed version.
Is CVE-2008-3903 being exploited?
There is no known exploitation of CVE-2008-3903 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2008-3903, GHSA-m5r8-ppgr-h5vx.