CVE-2013-5510 Auth bypass in n/a
Remote attackers can bypass authentication on Cisco ASA VPNs if the override-account-disable option is enabled, allowing unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2013-5510?
CVE-2013-5510 is a medium-severity authentication bypass vulnerability in Cisco Adaptive Security Appliance Software, published on 13 Oct 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The remote-access VPN implementation in Cisco Adaptive Security Appliance (ASA) Software 7.x before 7.2(5.12), 8.x before 8.2(5.46), 8.3.x before 8.3(2.39), 8.4.x before 8.4(6), 8.6.x before 8.6(1.12), 9.0.x before 9.0(3.1), and 9.1.x before 9.1(2.5), when an override-account-disable option is enabled, does not properly parse AAA LDAP responses, which allows remote attackers to bypass authentication via a VPN connection attempt, aka Bug ID CSCug83401.
Weakness: CWE-287
Which versions are affected by CVE-2013-5510?
It affects 1 product.
Products include Cisco Adaptive Security Appliance Software.
How do I fix CVE-2013-5510?
No fix has been published for CVE-2013-5510 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2013-5510 being exploited?
There is no known exploitation of CVE-2013-5510 in the wild and no public exploit code.
Other vulnerabilities in Cisco Adaptive Security Appliance Software
- CVE-2025-20333 Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Buffer Overflow
- CVE-2016-6366 Cisco Adaptive Security Appliance (ASA) SNMP Buffer Overflow
- CVE-2026-20349 Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Heap Inspection
- CVE-2024-20353 Cisco ASA and FTD Denial of Service
- CVE-2016-6367 Cisco Adaptive Security Appliance (ASA) CLI Remote Code Execution
All Cisco Adaptive Security Appliance Software vulnerabilities
Sources
Also known as GHSA-m4r6-hfwj-vc65.