CVE-2011-2054 Cisco ASA Secondary Authentication Bypass Vulnerability
Remote attackers with valid primary credentials can bypass secondary LDAP authentication by submitting a blank password, gaining 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-2011-2054?
CVE-2011-2054 is a medium-severity authentication bypass vulnerability in Cisco ASA, published on 19 Feb 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability in the Cisco ASA that could allow a remote attacker to successfully authenticate using the Cisco AnyConnect VPN client if the Secondary Authentication type is LDAP and the password is left blank, providing the primary credentials are correct. The vulnerabilities is due to improper input validation of certain parameters passed to the affected software. An attacker must have the correct primary credentials in order to successfully exploit this vulnerability.
Weakness: CWE-287
Which versions are affected by CVE-2011-2054?
It affects 12 products.
Linux distribution packages (1)
libsoup openSUSE:Tumbleweed | All versions | 2.56.0-1.1 |
Products include Cisco Asa 5500 Firmware, Cisco Asa 5510 Firmware, Cisco Asa 5512-X Firmware, Cisco Asa 5515-X Firmware, Cisco Asa 5520 Firmware, Cisco Asa 5525-X Firmware and 6 more.
How do I fix CVE-2011-2054?
Apply the vendor's patch.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2011-2054 being exploited?
There is no known exploitation of CVE-2011-2054 in the wild and no public exploit code.
Sources
Also known as GHSA-8w62-hmc9-cq72, openSUSE-SU-2024:10046-1.