Cisco Secure Access Control Server up to 5.2 input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

A vulnerability classified as problematic was found in Cisco Secure Access Control Server up to 5.2 (Network Management Software). This vulnerability affects an unknown part. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality. CVE summarizes:

Cisco Secure Access Control System (ACS) 5.x before 5.2 Patch 11 and 5.3 before 5.3 Patch 7, when a certain configuration involving TACACS+ and LDAP is used, does not properly validate passwords, which allows remote attackers to bypass authentication by sending a valid username and a crafted password string, aka Bug ID CSCuc65634.

The weakness was shared 11/07/2012 with Cisco (Website). The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2012-5424 since 10/17/2012. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 69135 (Cisco Secure Access Control System TACACS+ Authentication Bypass (cisco-sa-20121107-acs)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43411 (Cisco Secure Access Control System TACACS+ Authentication Bypass Vulnerability (cisco-sa-20121107-acs)).

Upgrading to version 5.3 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (79860) and Tenable (69135).

Productinfo

Type

Vendor

Name

Version

License

Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 69135
Nessus Name: Cisco Secure Access Control System TACACS+ Authentication Bypass (cisco-sa-20121107-acs)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Secure Access Control Server 5.3

Timelineinfo

10/17/2012 🔍
11/07/2012 +21 days 🔍
11/07/2012 +0 days 🔍
11/07/2012 +0 days 🔍
11/07/2012 +0 days 🔍
11/07/2012 +0 days 🔍
11/14/2012 +7 days 🔍
07/30/2013 +258 days 🔍
03/24/2015 +602 days 🔍
12/19/2021 +2462 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: tools.cisco.com
Organization: Cisco
Status: Confirmed

CVE: CVE-2012-5424 (🔍)
IAVM: 🔍

X-Force: 79860
SecurityTracker: 1027733 - Cisco Secure Access Control System Password Validation Flaw Lets Remote Users Bypass TACACS+ Authentication
Vulnerability Center: 37241 - [cisco-sa-20121107-acs] Cisco Secure ACS 5.x TACACS+ Remote Security Bypass, Medium
SecurityFocus: 56433 - Cisco Secure Access Control System (ACS) CVE-2012-5424 Authentication Bypass Vulnerability
Secunia: 51194
OSVDB: 87251

Entryinfo

Created: 03/24/2015 12:22
Updated: 12/19/2021 18:00
Changes: 03/24/2015 12:22 (68), 04/21/2017 11:32 (10), 12/19/2021 18:00 (3)
Complete: 🔍

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