Red Hat policycoreutils up to 1.27.10 seunshare_mount access control

CVSS Meta Temp Score
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CTI Interest Score
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8.4$5k-$25k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Red Hat policycoreutils up to 1.27.10. The affected element is the function seunshare_mount. Performing a manipulation results in access control. This vulnerability is identified as CVE-2011-1011. There is not any exploit available.

Detailsinfo

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 $5k-$25k at the moment (estimation calculated on 01/16/2025). 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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 119129 (Red Hat Update for policycoreutils (RHSA-2011:0414)).

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), Tenable (68246), SecurityFocus (BID 46510†), SecurityTracker (ID 1025291†) and Vulnerability Center (SBV-30701†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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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 🔍
01/16/2025 +3590 days 🔍

Sourcesinfo

Vendor: redhat.com

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

CVE: CVE-2011-1011 (🔍)
GCVE (CVE): GCVE-0-2011-1011
GCVE (VulDB): GCVE-100-56601

OVAL: 🔍

X-Force: 65641
SecurityFocus: 46510 - policycoreutils 'seunshare' Insecure Temporary Directory Creation Vulnerability
Secunia: 43415
SecurityTracker: 1025291
Vulnerability Center: 30701 - policycoreutils 2.0.83 and Prior Local DoS or Privilege Escalation Vulnerability, Medium

Entryinfo

Created: 03/20/2015 16:16
Updated: 01/16/2025 22:10
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), 12/01/2024 22:48 (15), 01/16/2025 22:10 (4)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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