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.
8.4	$0-$5k	0.00

A vulnerability classified as critical has been found in Red Hat policycoreutils up to 1.27.10. This affects the function seunshare_mount. 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:

The seunshare_mount function in sandbox/seunshare.c in seunshare in certain Red Hat packages of policycoreutils 2.0.83 and earlier in Red Hat Enterprise Linux (RHEL) 6 and earlier, and Fedora 14 and earlier, mounts a new directory on top of /tmp without assigning root ownership and the sticky bit to this new directory, which allows local users to replace or delete arbitrary /tmp files, and consequently cause a denial of service or possibly gain privileges, by running a setuid application that relies on /tmp, as demonstrated by the ksu application.

The weakness was released 02/24/2011 by Tavis Ormandy as Bug 633544 as not defined bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2011-1011. An attack has to be approached locally. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/17/2021). MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 68246 (Oracle Linux 6 : policycoreutils (ELSA-2011-0414)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (65641) and Tenable (68246). Entries connected to this vulnerability are available at VDB-69605, VDB-93742 and VDB-114028.

Productinfo

Vendor

• Red Hat

Name

• policycoreutils

Version

• 1.27.0
• 1.27.1
• 1.27.2
• 1.27.3
• 1.27.4
• 1.27.5
• 1.27.6
• 1.27.7
• 1.27.8
• 1.27.9
• 1.27.10

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 68246
Nessus Name: Oracle Linux 6 : policycoreutils (ELSA-2011-0414)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 862929
OpenVAS Name: Fedora Update for policycoreutils FEDORA-2011-3043
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/14/2011 🔍
02/22/2011 +8 days 🔍
02/22/2011 +0 days 🔍
02/24/2011 +2 days 🔍
02/24/2011 +0 days 🔍
03/28/2011 +32 days 🔍
07/12/2013 +837 days 🔍
03/20/2015 +616 days 🔍
10/17/2021 +2403 days 🔍

Sourcesinfo

Vendor: redhat.com

Advisory: Bug 633544
Researcher: Tavis Ormandy
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1011 (🔍)
OVAL: 🔍

X-Force: 65641
Vulnerability Center: 30701 - policycoreutils 2.0.83 and Prior Local DoS or Privilege Escalation Vulnerability, Medium
SecurityFocus: 46510 - policycoreutils 'seunshare' Insecure Temporary Directory Creation Vulnerability
Secunia: 43415

See also: 🔍

Entryinfo

Created: 03/20/2015 16:16
Updated: 10/17/2021 19:32
Changes: 03/20/2015 16:16 (60), 03/20/2017 09:21 (10), 10/17/2021 19:25 (5), 10/17/2021 19:32 (1)
Complete: 🔍
Cache ID: 13:E1B:103

Discussion

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