CVE-2011-2054

MEDIUM

Cisco ASA 5500 Series - Improper Authentication via Blank LDAP Password Bypass

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 4.3
EPSS 0.0086
EPSS Percentile 53.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-287
Status published
Products (12)
cisco/asa_5500_firmware 8.4\(1\)
cisco/asa_5510_firmware 8.4\(1\)
cisco/asa_5512-x_firmware 8.4\(1\)
cisco/asa_5515-x_firmware 8.4\(1\)
cisco/asa_5520_firmware 8.4\(1\)
cisco/asa_5525-x_firmware 8.4\(1\)
cisco/asa_5540_firmware 8.4\(1\)
cisco/asa_5545-x_firmware 8.4\(1\)
cisco/asa_5550_firmware 8.4\(1\)
cisco/asa_5555-x_firmware 8.4\(1\)
... and 2 more
Published Feb 19, 2020
Tracked Since Feb 18, 2026