Cisco IOS up to 12.2src Authentication Proxy Feature improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Cisco IOS up to 12.2src. This vulnerability affects unknown code of the component Authentication Proxy Feature. Such manipulation leads to improper authentication. This vulnerability is referenced as CVE-2009-2863. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Cisco IOS up to 12.2src (Router Operating System). Affected by this issue is an unknown functionality of the component Authentication Proxy Feature. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality. CVE summarizes:

Race condition in the Firewall Authentication Proxy feature in Cisco IOS 12.0 through 12.4 allows remote attackers to bypass authentication, or bypass the consent web page, via a crafted request, aka Bug ID CSCsy15227.

The weakness was published 09/23/2009 (Website). The advisory is shared for download at xforce.iss.net. This vulnerability is handled as CVE-2009-2863. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/30/2025).

The vulnerability scanner Nessus provides a plugin with the ID 49040 (Cisco IOS Software Authentication Proxy Vulnerability - Cisco Systems), 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 43164 (Cisco IOS Software Authentication Proxy Vulnerability (cisco-sa-20090923-auth-proxy)).

A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (53453), Tenable (49040), SecurityFocus (BID 36491†), OSVDB (58340†) and SecurityTracker (ID 1022935†). Similar entries are available at VDB-50244, VDB-50243, VDB-50242 and VDB-50239. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
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: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 49040
Nessus Name: Cisco IOS Software Authentication Proxy Vulnerability - Cisco Systems
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/19/2009 🔍
09/23/2009 +35 days 🔍
09/23/2009 +0 days 🔍
09/23/2009 +0 days 🔍
09/23/2009 +0 days 🔍
09/24/2009 +0 days 🔍
09/24/2009 +0 days 🔍
09/28/2009 +3 days 🔍
09/01/2010 +338 days 🔍
03/18/2015 +1659 days 🔍
03/30/2025 +3664 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: xforce.iss.net
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-2863 (🔍)
GCVE (CVE): GCVE-0-2009-2863
GCVE (VulDB): GCVE-100-50240
X-Force: 53453
SecurityFocus: 36491 - Cisco IOS Authentication Proxy for HTTP(S) Authentication Bypass Vulnerability
OSVDB: 58340 - Cisco IOS Firewall Authentication Proxy Server / Consent Page Bypass
SecurityTracker: 1022935
Vulnerability Center: 23557 - [cisco-sa-20090923-auth-proxy] Cisco IOS Proxy for HTTP Remote Authentication Bypass Vulnerability, High

See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 03/30/2025 00:25
Changes: 03/18/2015 15:15 (59), 02/15/2017 09:16 (9), 08/23/2021 08:57 (4), 08/23/2021 09:02 (1), 11/29/2024 11:42 (15), 03/30/2025 00:25 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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