Linux Foundation xen 3.3.0 access control

HistoryDiffrelatejsonxmlCTI

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.
7.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Linux Foundation xen 3.3.0. It has been rated as problematic. This affects an unknown function. The manipulation leads to access control. This vulnerability is uniquely identified as CVE-2008-5716. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Foundation xen 3.3.0 (Virtualization Software). It has been rated as critical. This issue affects an unknown function. 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, integrity, and availability. The summary by CVE is:

xend in Xen 3.3.0 does not properly restrict a guest VM s write access within the /local/domain xenstore directory tree, which allows guest OS users to cause a denial of service and possibly have unspecified other impact by writing to (1) console/tty, (2) console/limit, or (3) image/device-model-pid. NOTE: this issue exists because of erroneous set_permissions calls in the fix for CVE-2008-4405.

The weakness was disclosed 12/24/2008 (Website). It is possible to read the advisory at xforce.iss.net. The identification of this vulnerability is CVE-2008-5716 since 12/24/2008. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful 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 43723 (CentOS 5 : xen (CESA-2009:0003)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (47668), Tenable (43723) and SecurityFocus (BID 31499†). The entries VDB-44931 and VDB-44320 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Virtualization Software

Vendor

Linux Foundation

Name

Version

3.3.0

License

open-source

Website

Vendor: https://www.linuxfoundation.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 7.4

VulDB Base Score: 8.4
VulDB Temp Score: 7.4
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: 🔍

NVD Base Score: 🔍

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: 🔍

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

Nessus ID: 43723
Nessus Name: CentOS 5 : xen (CESA-2009:0003)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

09/30/2008 🔍
12/24/2008 +85 days 🔍
12/24/2008 +0 days 🔍
12/24/2008 +0 days 🔍
01/07/2009 +14 days 🔍
01/05/2010 +363 days 🔍
03/17/2015 +1896 days 🔍
10/22/2018 +1315 days 🔍

Sourcesinfo

Vendor: linuxfoundation.org

Advisory: xforce.iss.net
Status: Confirmed

CVE: CVE-2008-5716 (🔍)
GCVE (CVE): GCVE-0-2008-5716
GCVE (VulDB): GCVE-100-45647
X-Force: 47668 - Xen xend xenstore directory tree denial of service
SecurityFocus: 31499 - Xen XenStore Domain Configuration Data Unsafe Storage Vulnerability

See also: 🔍

Entryinfo

Created: 03/17/2015 16:11
Updated: 10/22/2018 07:14
Changes: 03/17/2015 16:11 (57), 10/22/2018 07:14 (8)
Complete: 🔍
Cache ID: 216::103