CVE-2009-0041 Information disclosure in n/a
Remote attackers can enumerate valid usernames by observing differences in responses to failed IAX2 login attempts in Asterisk.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2009-0041?
CVE-2009-0041 is a medium-severity vulnerability in n/a, published on 14 Jan 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
IAX2 in Asterisk Open Source 1.2.x before 1.2.31, 1.4.x before 1.4.23-rc4, and 1.6.x before 1.6.0.3-rc2; Business Edition A.x.x, B.x.x before B.2.5.7, C.1.x.x before C.1.10.4, and C.2.x.x before C.2.1.2.1; and s800i 1.2.x before 1.3.0 responds differently to a failed login attempt depending on whether the user account exists, which allows remote attackers to enumerate valid usernames.
Weakness: CWE-200
Which versions are affected by CVE-2009-0041?
It affects 3 products.
Products include Asterisk Asterisk Business Edition, Asterisk Open Source, Asterisk S800i Appliance.
How do I fix CVE-2009-0041?
Upgrade to a fixed version.
Is CVE-2009-0041 being exploited?
There is no known exploitation of CVE-2009-0041 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2009-0041, GHSA-94hf-42cp-33m4.