CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.6 | $0-$5k | 0.00 |
A vulnerability was found in Citrix XenDesktop 7.0 (Connectivity Software) and classified as critical. This issue affects some unknown functionality of the component Policy Rule Permission Handler. 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. The summary by CVE is:
Citrix XenDesktop 7.0, when upgraded from XenDesktop 5.x, does not properly enforce policy rule permissions, which allows remote attackers to bypass intended restrictions.
The weakness was published 10/22/2013 with Citrix as Vulnerability in XenDesktop 7.0 Upgrade Could Result in Policy Bypass as confirmed advisory (Website). The advisory is shared at support.citrix.com. The public release has been coordinated with Citrix. The identification of this vulnerability is CVE-2013-6077 since 10/11/2013. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.
It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 70741 (Citrix XenDesktop BrokerAccessPolicyRule Policy Rule Remote Security Bypass), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows.
Upgrading to version 7.1 eliminates this vulnerability. The upgrade is hosted 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 X-Force (88406) and Tenable (70741). support.citrix.com is providing further details.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.1VulDB Meta Temp Score: 4.6
VulDB Base Score: 5.1
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Access controlCWE: CWE-264
ATT&CK: T1068
Local: Yes
Remote: No
Availability: 🔍
Access: Public
Status: Proof-of-Concept
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
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Nessus ID: 70741
Nessus Name: Citrix XenDesktop BrokerAccessPolicyRule Policy Rule Remote Security Bypass
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: XenDesktop 7.1
Timeline
10/11/2013 🔍10/22/2013 🔍
10/22/2013 🔍
10/22/2013 🔍
10/28/2013 🔍
10/29/2013 🔍
11/04/2013 🔍
11/05/2013 🔍
02/18/2014 🔍
06/01/2021 🔍
Sources
Vendor: citrix.comAdvisory: Vulnerability in XenDesktop 7.0 Upgrade Could Result in Policy Bypass
Organization: Citrix
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍
CVE: CVE-2013-6077 (🔍)
IAVM: 🔍
X-Force: 88406
Vulnerability Center: 43329 - Citrix XenDesktop 7.0 Remote Security Bypass Vulnerability When Upgraded from Version 5.0, Medium
SecurityFocus: 63413 - Citrix XenDesktop 'BrokerAccessPolicyRule' Policy Rule Remote Security Bypass Vulnerability
OSVDB: 98890
scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
Entry
Created: 10/28/2013 08:35Updated: 06/01/2021 13:15
Changes: 10/28/2013 08:35 (77), 05/21/2017 14:10 (4), 06/01/2021 13:15 (3)
Complete: 🔍
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