CVE-2013-4496 Security feature bypass in n/a
Remote attackers can bypass password-guessing protections to brute-force user accounts via ChangePasswordUser2 requests, leading to unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2013-4496?
CVE-2013-4496 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 14 Mar 2014. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Samba 3.x before 3.6.23, 4.0.x before 4.0.16, and 4.1.x before 4.1.6 does not enforce the password-guessing protection mechanism for all interfaces, which makes it easier for remote attackers to obtain access via brute-force ChangePasswordUser2 (1) SAMR or (2) RAP attempts.
Weakness: CWE-255
Which versions are affected by CVE-2013-4496?
It affects 2 products.
Products include Canonical Ubuntu Linux, Samba Samba.
How do I fix CVE-2013-4496?
Upgrade to a fixed version.
Is CVE-2013-4496 being exploited?
There is no known exploitation of CVE-2013-4496 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2013-4496, ECHO-345d-2825-2c85, GHSA-jfh4-9458-8w9g, MGASA-2014-0138, UBUNTU-CVE-2013-4496.