Multiple Cisco Products TACACS+ Authentication Bypass Vulnerability

BID:49956

Info

Multiple Cisco Products TACACS+ Authentication Bypass Vulnerability

Bugtraq ID: 49956
Class: Access Validation Error
CVE: CVE-2011-3298
Remote: Yes
Local: No
Published: Oct 05 2011 12:00AM
Updated: Oct 05 2011 12:00AM
Credit: Cisco
Vulnerable: Cisco Firewall Services Module (FWSM) 4.1(5)
Cisco Firewall Services Module (FWSM) 4.1(1.2)
Cisco Firewall Services Module (FWSM) 4.1(1.1)
Cisco Firewall Services Module (FWSM) 4.1
Cisco Firewall Services Module (FWSM) 4.0(15)
Cisco Firewall Services Module (FWSM) 4.0(11.1)
Cisco Firewall Services Module (FWSM) 4.0(10.1)
Cisco Firewall Services Module (FWSM) 4.0 (8)
Cisco Firewall Services Module (FWSM) 4.0 (6)
Cisco Firewall Services Module (FWSM) 4.0
Cisco Firewall Services Module (FWSM) 3.2(20)
Cisco Firewall Services Module (FWSM) 3.2(2)
Cisco Firewall Services Module (FWSM) 3.2(17.2)
Cisco Firewall Services Module (FWSM) 3.2(16.1)
Cisco Firewall Services Module (FWSM) 3.2(13)
Cisco Firewall Services Module (FWSM) 3.2 (2)
Cisco Firewall Services Module (FWSM) 3.2
Cisco Firewall Services Module (FWSM) 3.1(20)
Cisco Firewall Services Module (FWSM) 3.1(17.2)
Cisco Firewall Services Module (FWSM) 3.1(16)
Cisco Firewall Services Module (FWSM) 3.1(1.9)
Cisco Firewall Services Module (FWSM) 3.1(1.7)
Cisco Firewall Services Module (FWSM) 3.1 (3.3)
Cisco Firewall Services Module (FWSM) 3.1 (3.2)
Cisco Firewall Services Module (FWSM) 3.1 (3.18)
Cisco Firewall Services Module (FWSM) 3.1 (3.11)
Cisco Firewall Services Module (FWSM) 3.1 (3.1)
Cisco Firewall Services Module (FWSM) 3.1
Cisco ASA 5500 Series Adaptive Security Appliance 8.5
Cisco ASA 5500 Series Adaptive Security Appliance 8.4(1)
Cisco ASA 5500 Series Adaptive Security Appliance 8.4
Cisco ASA 5500 Series Adaptive Security Appliance 8.3(2.13)
Cisco ASA 5500 Series Adaptive Security Appliance 8.3(2)
Cisco ASA 5500 Series Adaptive Security Appliance 8.3(1.8)
Cisco ASA 5500 Series Adaptive Security Appliance 8.3(1.6)
Cisco ASA 5500 Series Adaptive Security Appliance 8.3(1.1)
Cisco ASA 5500 Series Adaptive Security Appliance 8.3(0.08)
Cisco ASA 5500 Series Adaptive Security Appliance 8.3
Cisco ASA 5500 Series Adaptive Security Appliance 8.2(4.1)
Cisco ASA 5500 Series Adaptive Security Appliance 8.2(4)
Cisco ASA 5500 Series Adaptive Security Appliance 8.2(3)
Cisco ASA 5500 Series Adaptive Security Appliance 8.2(2.19)
Cisco ASA 5500 Series Adaptive Security Appliance 8.2(2.17)
Cisco ASA 5500 Series Adaptive Security Appliance 8.2(2.13)
Cisco ASA 5500 Series Adaptive Security Appliance 8.2(2.10)
Cisco ASA 5500 Series Adaptive Security Appliance 8.2(2.1)
Cisco ASA 5500 Series Adaptive Security Appliance 8.2(2)
Cisco ASA 5500 Series Adaptive Security Appliance 8.2(1.5)
Cisco ASA 5500 Series Adaptive Security Appliance 8.2(1.2)
Cisco ASA 5500 Series Adaptive Security Appliance 8.2(1.16)
Cisco ASA 5500 Series Adaptive Security Appliance 8.2(1.15)
Cisco ASA 5500 Series Adaptive Security Appliance 8.2(1.10)
Cisco ASA 5500 Series Adaptive Security Appliance 8.2
Cisco ASA 5500 Series Adaptive Security Appliance 8.1(2.49)
Cisco ASA 5500 Series Adaptive Security Appliance 8.1(2.47)
Cisco ASA 5500 Series Adaptive Security Appliance 8.1(2.46)
Cisco ASA 5500 Series Adaptive Security Appliance 8.1(2.45)
Cisco ASA 5500 Series Adaptive Security Appliance 8.1(2.44)
Cisco ASA 5500 Series Adaptive Security Appliance 8.1(2.40)
Cisco ASA 5500 Series Adaptive Security Appliance 8.1(2.39)
Cisco ASA 5500 Series Adaptive Security Appliance 8.1(2.37)
Cisco ASA 5500 Series Adaptive Security Appliance 8.1(2.35)
Cisco ASA 5500 Series Adaptive Security Appliance 8.1(2.29)
Cisco ASA 5500 Series Adaptive Security Appliance 8.1
Cisco ASA 5500 Series Adaptive Security Appliance 8.0(5.23)
Cisco ASA 5500 Series Adaptive Security Appliance 8.0(5.2)
Cisco ASA 5500 Series Adaptive Security Appliance 8.0(5.19)
Cisco ASA 5500 Series Adaptive Security Appliance 8.0(5.17)
Cisco ASA 5500 Series Adaptive Security Appliance 8.0(5.15)
Cisco ASA 5500 Series Adaptive Security Appliance 8.0(5.1)
Cisco ASA 5500 Series Adaptive Security Appliance 8.0(4.44)
Cisco ASA 5500 Series Adaptive Security Appliance 8.0(4.38)
Cisco ASA 5500 Series Adaptive Security Appliance 8.0
Cisco ASA 5500 Series Adaptive Security Appliance 7.2(5.2)
Cisco ASA 5500 Series Adaptive Security Appliance 7.2(5.1)
Cisco ASA 5500 Series Adaptive Security Appliance 7.2(5)
Cisco ASA 5500 Series Adaptive Security Appliance 7.2(4.46)
Cisco ASA 5500 Series Adaptive Security Appliance 7.2(4.45)
Cisco ASA 5500 Series Adaptive Security Appliance 7.2(4.44)
Cisco ASA 5500 Series Adaptive Security Appliance 7.2
Cisco ASA 5500 Series Adaptive Security Appliance 7.1
Cisco ASA 5500 Series Adaptive Security Appliance 7.0(8.12)
Cisco ASA 5500 Series Adaptive Security Appliance 7.0(8.11)
Cisco ASA 5500 Series Adaptive Security Appliance 7.0(8.10)
Cisco ASA 5500 Series Adaptive Security Appliance 7.0
Not Vulnerable: Cisco Firewall Services Module (FWSM) 4.1(7)
Cisco Firewall Services Module (FWSM) 4.0(16)
Cisco Firewall Services Module (FWSM) 3.2(22)
Cisco Firewall Services Module (FWSM) 3.1(21)
Cisco ASA 5500 Series Adaptive Security Appliance 8.5(1.1)
Cisco ASA 5500 Series Adaptive Security Appliance 8.4(1.10)
Cisco ASA 5500 Series Adaptive Security Appliance 8.3(2.18)
Cisco ASA 5500 Series Adaptive Security Appliance 8.2(5)
Cisco ASA 5500 Series Adaptive Security Appliance 8.1(2.50)
Cisco ASA 5500 Series Adaptive Security Appliance 8.0(5.24)
Cisco ASA 5500 Series Adaptive Security Appliance 7.2(5.4)
Cisco ASA 5500 Series Adaptive Security Appliance 7.2(5.3)
Cisco ASA 5500 Series Adaptive Security Appliance 7.0(8.13)

Discussion

Multiple Cisco Products TACACS+ Authentication Bypass Vulnerability

Cisco ASA 5500 Series Adaptive Security Appliances, the FWSM for Cisco Catalyst 6500 Series Switches, and Cisco 7600 Series Routers are prone to a remote authentication-bypass vulnerability.

Successful exploits allow remote attackers to bypass authentication and gain administrative access to vulnerable devices.

This issue is being tracked by Cisco bug IDs CSCto74274 and CSCto40365.

Exploit / POC

Multiple Cisco Products TACACS+ Authentication Bypass Vulnerability

Attackers can use readily available tools to exploit this issue.

References

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report