Cisco Secure Access Control System 5.1 Web Interface Authentication Bypass credentials management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.6$0-$5k0.00

A vulnerability was found in Cisco Secure Access Control System 5.1 (Network Management Software) and classified as critical. Affected by this issue is an unknown functionality of the component Web Interface. The manipulation with an unknown input leads to a credentials management vulnerability (Authentication Bypass). Using CWE to declare the problem leads to CWE-255. Impacted is integrity. CVE summarizes:

The web-based management interface in Cisco Secure Access Control System (ACS) 5.1 before 5.1.0.44.6 and 5.2 before 5.2.0.26.3 allows remote attackers to change arbitrary user passwords via unspecified vectors, aka Bug ID CSCtl77440.

The weakness was released 03/30/2011 with Cisco as Cisco Secure Access Control System Unauthorized Password Change Vulnerability as confirmed advisory (Website). The advisory is available at cisco.com. The public release was coordinated with the vendor. This vulnerability is handled as CVE-2011-0951 since 02/10/2011. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1552 by the MITRE ATT&CK project.

It is declared as highly functional. As 0-day the estimated underground price was around $25k-$100k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 42360 (Cisco Secure Access Control System Unauthorized Password Change Vulnerability (cisco-sa-20110330-acs)).

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (66471), SecurityFocus (BID 47093†), OSVDB (72289†), Secunia (SA43924†) and SecurityTracker (ID 1025271†). seclists.org is providing further details.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
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

Name: Authentication Bypass
Class: Credentials management / Authentication Bypass
CWE: CWE-255
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Highly functional

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: cisco_secure_acs_bypass.rb
MetaSploit Name: Cisco Secure ACS Unauthorized Password Change
MetaSploit File: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

02/10/2011 🔍
03/30/2011 +48 days 🔍
03/30/2011 +0 days 🔍
03/30/2011 +0 days 🔍
03/30/2011 +0 days 🔍
03/30/2011 +0 days 🔍
04/04/2011 +5 days 🔍
04/05/2011 +1 days 🔍
02/04/2014 +1036 days 🔍
01/17/2025 +4000 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: Cisco Secure Access Control System Unauthorized Password Change Vulnerability
Organization: Cisco
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2011-0951 (🔍)
X-Force: 66471 - Cisco Secure Access Control System interface security bypass, Medium Risk
SecurityFocus: 47093 - Cisco Secure Access Control System (ACS) Unauthorized Password Change Security Bypass Vulnerability
Secunia: 43924 - Cisco Secure Access Control System Password Change Vulnerability, Less Critical
OSVDB: 72289
SecurityTracker: 1025271 - Cisco Secure Access Control System Management Interface Bug Lets Remote Users Change Arbitrary User Passwords
Vulnerability Center: 30833 - [cisco-sa-20110330-acs] Cisco Secure ACS Allows to Change Arbitrary User Passwords, Medium
Vupen: ADV-2011-0821

Misc.: 🔍

Entryinfo

Created: 02/04/2014 02:17 PM
Updated: 01/17/2025 03:30 AM
Changes: 02/04/2014 02:17 PM (77), 03/20/2017 09:29 AM (6), 01/17/2025 03:30 AM (18)
Complete: 🔍
Committer:
Cache ID: 18:FA0:40

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