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Vulnerability Details : CVE-2009-3725

The connector layer in the Linux kernel before 2.6.31.5 does not require the CAP_SYS_ADMIN capability for certain interaction with the (1) uvesafb, (2) pohmelfs, (3) dst, or (4) dm subsystem, which allows local users to bypass intended access restrictions and gain privileges via calls to functions in these subsystems.
Publish Date : 2009-11-06 Last Update Date : 2018-11-16
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- CVSS Scores & Vulnerability Types

CVSS Score
7.2
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Gain privilegesBypass a restriction or similar
CWE ID 264

- Vendor Statements

Not vulnerable. This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 3, 4, 5 or Red Hat Enterprise MRG, as they do not include the upstream change introducing this flaw.
Source: Redhat

- Related OVAL Definitions

Title Definition Id Class Family
DSA-2012 linux-2.6 -- privilege escalation/denial of service oval:org.mitre.oval:def:7309 unix
DSA-2012-1 linux-2.6 -- privilege escalation/denial of service oval:org.mitre.oval:def:13127 unix
DSA-2015 drbd8 -- privilege escalation oval:org.mitre.oval:def:7293 unix
DSA-2015-1 drbd8 linux-modules-extra-2.6 - privilege escalation oval:org.mitre.oval:def:18387 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2009-3725

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 6.06 ~~lts~~~ Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 8.04 ~~lts~~~ Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 8.10 Version Details Vulnerabilities
4 OS Canonical Ubuntu Linux 9.04 Version Details Vulnerabilities
5 OS Canonical Ubuntu Linux 9.10 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 5

- References For CVE-2009-3725

http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31.5 CONFIRM
http://www.securityfocus.com/bid/36834
BID 36834 Linux Kernel Subsystem Connector Missing Capability Check Security Bypass Vulnerabilities Release Date:2010-03-12
http://patchwork.kernel.org/patch/51387/ CONFIRM
http://patchwork.kernel.org/patch/51384/ CONFIRM
http://marc.info/?l=oss-security&m=125716192622235&w=2
MLIST [oss-security] 20091102 Re: CVE request: kernel: connector security bypass
http://patchwork.kernel.org/patch/51383/ CONFIRM
http://patchwork.kernel.org/patch/51382/ CONFIRM
http://marc.info/?l=oss-security&m=125715484511380&w=2
MLIST [oss-security] 20091102 CVE request: kernel: connector security bypass
http://marc.info/?l=linux-kernel&m=125449888416314&w=2
MLIST [linux-kernel] 20091002 Re: [PATCH 0/8] SECURITY ISSUE with connector
http://www.ubuntu.com/usn/usn-864-1
UBUNTU USN-864-1
http://xorl.wordpress.com/2009/10/31/linux-kernel-multiple-capabilities-missing-checks/

- Metasploit Modules Related To CVE-2009-3725

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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