Citrix XenApp up to 6.5 denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.2	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Citrix XenApp up to 6.5. This affects an unknown part. The manipulation leads to denial of service. No exploit exists. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Citrix XenApp up to 6.5 (Connectivity Software). This issue affects an unknown functionality. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was disclosed 05/22/2012 by XiaoPeng Zhang and Alex Chapman with FortiGuard Labs & Context Information Security as CTX133159 as confirmed knowledge base article (Website). It is possible to read the advisory at support.citrix.com. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at support.citrix.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 53663†), OSVDB (82138†), Secunia (SA49245†) and SecurityTracker (ID 1027095†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Connectivity Software

Vendor

• Citrix

Name

• XenApp

Version

• 6.0
• 6.1
• 6.2
• 6.3
• 6.4
• 6.5

License

• commercial

Website

• Vendor: https://www.citrix.com/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: support.citrix.com

Timelineinfo

05/22/2012 🔍
05/22/2012 +0 days 🔍
05/22/2012 +0 days 🔍
05/23/2012 +1 days 🔍
05/24/2012 +1 days 🔍
05/24/2012 +0 days 🔍
05/30/2012 +6 days 🔍
04/27/2018 +2158 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: CTX133159
Researcher: XiaoPeng Zhang , Alex Chapman
Organization: FortiGuard Labs & Context Information Security
Status: Confirmed

GCVE (VulDB): GCVE-100-5447
SecurityFocus: 53663
Secunia: 49245 - Citrix XenApp Unspecified Denial of Service Vulnerability, Less Critical
OSVDB: 82138
SecurityTracker: 1027095

Entryinfo

Created: 05/30/2012 10:18
Updated: 04/27/2018 09:19
Changes: 05/30/2012 10:18 (55), 04/27/2018 09:19 (1)
Complete: 🔍
Committer:
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

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