XenSource Xen 4.1/4.2/4.3/4.4 xl Command access control

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in XenSource Xen 4.1/4.2/4.3/4.4. Impacted is an unknown function of the component xl Command. Performing a manipulation results in access control. This vulnerability was named CVE-2015-3259. There is no available exploit. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability, which was classified as problematic, was found in XenSource Xen 4.1/4.2/4.3/4.4 (Virtualization Software). This affects some unknown functionality of the component xl Command. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Stack-based buffer overflow in the xl command line utility in Xen 4.1.x through 4.5.x allows local guest administrators to gain privileges via a long configuration argument.

The weakness was presented 07/07/2015 by Donghai Zhu as XSA-137 as confirmed security advisory (Website). It is possible to read the advisory at xenbits.xen.org. This vulnerability is uniquely identified as CVE-2015-3259 since 04/10/2015. Attacking locally is a requirement. A authentication is required for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 84717 (FreeBSD : xen-tools -- xl command line config handling stack overflow (f1deed23-27ec-11e5-a4a5-002590263bf5)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168231 (OpenSuSE Security Update for xen (openSUSE-SU-2015:2003-1)).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (104408), Tenable (84717), SecurityFocus (BID 75573†) and Vulnerability Center (SBV-51400†). See VDB-76878, VDB-76879 and VDB-77069 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 84717
Nessus Name: FreeBSD : xen-tools -- xl command line config handling stack overflow (f1deed23-27ec-11e5-a4a5-002590263bf5)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 703414
OpenVAS Name: Debian Security Advisory DSA 3414-1 (xen - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Timelineinfo

04/10/2015 🔍
07/07/2015 +88 days 🔍
07/07/2015 +0 days 🔍
07/07/2015 +0 days 🔍
07/07/2015 +0 days 🔍
07/08/2015 +1 days 🔍
07/16/2015 +8 days 🔍
07/19/2015 +3 days 🔍
05/23/2022 +2500 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: XSA-137
Researcher: Donghai Zhu
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-3259 (🔍)
GCVE (CVE): GCVE-0-2015-3259
GCVE (VulDB): GCVE-100-76323

OVAL: 🔍

X-Force: 104408 - Xen xl command line utility buffer overflow
SecurityFocus: 75573 - Xen CVE-2015-3259 Stack Buffer Overflow Vulnerability
SecurityTracker: 1032973
Vulnerability Center: 51400 - Xen 4.1.x through 4.5.x Local Privilege Escalation via a Long Configuration Argument, Medium

See also: 🔍

Entryinfo

Created: 07/08/2015 09:39
Updated: 05/23/2022 14:58
Changes: 07/08/2015 09:39 (69), 07/13/2017 10:44 (9), 05/23/2022 14:55 (3), 05/23/2022 14:58 (1)
Complete: 🔍
Cache ID: 216:B4A:103

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