Citrix XenServer up to 7.0 Active Directory Account access control

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.4$0-$5k0.00

A vulnerability was found in Citrix XenServer up to 7.0 (Virtualization Software). It has been classified as very critical. Affected is an unknown code block of the component Active Directory Account Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-284. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 06/13/2016 (Website). The advisory is available at support.citrix.com. This vulnerability is traded as CVE-2016-5302 since 06/06/2016. It is possible to launch the attack remotely. The requirement for exploitation is a authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/20/2019). This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 91885 (Citrix XenServer Active Directory Authentication Incorrect Host Management Security Bypass (CTX213549, CTX213769)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context local.

Applying the patch XS70E003 is able to eliminate this problem. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (91885).

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VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.4

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2infoedit

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

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Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-284
ATT&CK: T1068

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 91885
Nessus Name: Citrix XenServer Active Directory Authentication Incorrect Host Management Security Bypass (CTX213549, CTX213769)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
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Economy: 🔍
Predictions: 🔍
Remediation: 🔍

Countermeasuresinfoedit

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: XS70E003

Timelineinfoedit

06/06/2016 🔍
06/09/2016 +3 days 🔍
06/13/2016 +4 days 🔍
06/13/2016 +0 days 🔍
06/14/2016 +1 days 🔍
06/28/2016 +14 days 🔍
01/20/2019 +936 days 🔍

Sourcesinfoedit

Vendor: https://www.citrix.com/

Advisory: support.citrix.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-5302 (🔍)

Entryinfoedit

Created: 06/14/2016 09:13 AM
Updated: 01/20/2019 01:23 PM
Changes: (11) vulnerability_cvss3_vuldb_av vulnerability_cvss3_vuldb_ac vulnerability_cvss3_vuldb_pr vulnerability_cvss3_vuldb_ui vulnerability_cvss3_vuldb_s vulnerability_cvss3_vuldb_c vulnerability_cvss3_vuldb_i vulnerability_cvss3_vuldb_a advisory_confirm_url countermeasure_date source_cve_assigned
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