VDB-3962 · CVE-2009-2453 · BID 34691

Citrix Presentation Server 4.x Access Gateway Filter access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Citrix Presentation Server 4.x. This affects an unknown part of the component Access Gateway Filter. Such manipulation leads to access control. This vulnerability is uniquely identified as CVE-2009-2453. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Citrix Presentation Server 4.x (Connectivity Software). Affected by this issue is an unknown function of the component Access Gateway Filter. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, and integrity. CVE summarizes:

Citrix XenApp (formerly Presentation Server) 4.5 Hotfix Rollup Pack 3 does not apply an access policy when it is defined with the Access Gateway Advanced Edition filters, which allows attackers to bypass intended access restrictions via unknown vectors.

The weakness was disclosed 04/23/2009 with Citrix (Website). The advisory is available at support.citrix.com. This vulnerability is handled as CVE-2009-2453 since 07/14/2009. 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 T1068 by the MITRE ATT&CK project.

It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at support.citrix.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at SecurityFocus (BID 34691†), OSVDB (53900†), Secunia (SA34865†), SecurityTracker (ID 1022114†) and Vulnerability Center (SBV-31850†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.8
VulDB Temp Score: 4.3
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: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: support.citrix.com

Timelineinfo

04/22/2009 🔍
04/23/2009 +1 days 🔍
04/23/2009 +0 days 🔍
04/23/2009 +0 days 🔍
05/04/2009 +10 days 🔍
07/14/2009 +71 days 🔍
07/14/2009 +0 days 🔍
07/14/2009 +0 days 🔍
06/16/2011 +702 days 🔍
03/24/2017 +2108 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: support.citrix.com
Organization: Citrix
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-2453 (🔍)
GCVE (CVE): GCVE-0-2009-2453
GCVE (VulDB): GCVE-100-3962
SecurityFocus: 34691 - Citrix XenApp Unspecified Security Bypass Vulnerability
Secunia: 34865 - Citrix Presentation Server Access Gateway Filters Security Bypass, Less Critical
OSVDB: 53900 - Citrix Presentation Server (XenApp) Access Gateway Filters Policy Bypass
SecurityTracker: 1022114 - Citrix XenApp Bug Lets Remote Users Bypass Access Policy
Vulnerability Center: 31850 - Citrix XenApp 4.5 Hotfix Rollup Pack 3 Network Access Bypass Vulnerability, High
Vupen: ADV-2009-1154

Entryinfo

Created: 05/04/2009 13:12
Updated: 03/24/2017 10:05
Changes: 05/04/2009 13:12 (70), 03/24/2017 10:05 (10)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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