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Vulnerability Details : CVE-2006-3626

Race condition in Linux kernel 2.6.17.4 and earlier allows local users to gain root privileges by using prctl with PR_SET_DUMPABLE in a way that causes /proc/self/environ to become setuid root.
Publish Date : 2006-07-18 Last Update Date : 2010-09-15
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- CVSS Scores & Vulnerability Types

CVSS Score
6.2
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 High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access Admin
Vulnerability Type(s) Gain privileges
CWE ID CWE id is not defined for this vulnerability

- Vendor Statements

This vulnerability does not affect Red Hat Enterprise Linux 2.1 or 3 as they are based on 2.4 kernels. The exploit relies on the kernel supporting the a.out binary format. Red Hat Enterprise Linux 4, Fedora Core 4, and Fedora Core 5 do not support the a.out binary format, causing the exploit to fail. We are not currently aware of any way to exploit this vulnerability if a.out binary format is not enabled. In addition, a default installation of these OS enables SELinux in enforcing mode. SELinux also completely blocks attempts to exploit this issue. https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=198973#c10
Source: Redhat

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate 2006-07-14 2006-07-14
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2006-3626 oval:org.opensuse.security:def:20063626 unix
Race condition in Linux kernel 2.6.17.4 and earlier allows local users to gain root privileges by using prctl with PR_SE... oval:org.mitre.oval:def:10060 unix
RHSA-2006:0617: kernel security update (Important) oval:com.redhat.rhsa:def:20060617 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-2006-3626

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel 2.6.16 RC6 Version Details Vulnerabilities
2 OS Linux Linux Kernel 2.6.16 RC5 Version Details Vulnerabilities
3 OS Linux Linux Kernel 2.6.16 RC1 Version Details Vulnerabilities
4 OS Linux Linux Kernel 2.6.16 RC4 Version Details Vulnerabilities
5 OS Linux Linux Kernel 2.6.16 Version Details Vulnerabilities
6 OS Linux Linux Kernel 2.6.16 RC3 Version Details Vulnerabilities
7 OS Linux Linux Kernel 2.6.16 RC2 Version Details Vulnerabilities
8 OS Linux Linux Kernel 2.6.16.1 Version Details Vulnerabilities
9 OS Linux Linux Kernel 2.6.16.2 Version Details Vulnerabilities
10 OS Linux Linux Kernel 2.6.16.3 Version Details Vulnerabilities
11 OS Linux Linux Kernel 2.6.16.4 Version Details Vulnerabilities
12 OS Linux Linux Kernel 2.6.16.5 Version Details Vulnerabilities
13 OS Linux Linux Kernel 2.6.16.6 Version Details Vulnerabilities
14 OS Linux Linux Kernel 2.6.16.7 Version Details Vulnerabilities
15 OS Linux Linux Kernel 2.6.16.8 Version Details Vulnerabilities
16 OS Linux Linux Kernel 2.6.16.9 Version Details Vulnerabilities
17 OS Linux Linux Kernel 2.6.16.10 Version Details Vulnerabilities
18 OS Linux Linux Kernel 2.6.16.11 Version Details Vulnerabilities
19 OS Linux Linux Kernel 2.6.16.12 Version Details Vulnerabilities
20 OS Linux Linux Kernel 2.6.16.13 Version Details Vulnerabilities
21 OS Linux Linux Kernel 2.6.16.14 Version Details Vulnerabilities
22 OS Linux Linux Kernel 2.6.16.15 Version Details Vulnerabilities
23 OS Linux Linux Kernel 2.6.16.16 Version Details Vulnerabilities
24 OS Linux Linux Kernel 2.6.16.17 Version Details Vulnerabilities
25 OS Linux Linux Kernel 2.6.16.18 Version Details Vulnerabilities
26 OS Linux Linux Kernel 2.6.16.19 Version Details Vulnerabilities
27 OS Linux Linux Kernel 2.6.16.20 Version Details Vulnerabilities
28 OS Linux Linux Kernel 2.6.16.21 Version Details Vulnerabilities
29 OS Linux Linux Kernel 2.6.16.22 Version Details Vulnerabilities
30 OS Linux Linux Kernel 2.6.16.23 Version Details Vulnerabilities
31 OS Linux Linux Kernel 2.6.16.24 Version Details Vulnerabilities
32 OS Linux Linux Kernel 2.6.17 Version Details Vulnerabilities
33 OS Linux Linux Kernel 2.6.17 RC2 Version Details Vulnerabilities
34 OS Linux Linux Kernel 2.6.17 RC5 Version Details Vulnerabilities
35 OS Linux Linux Kernel 2.6.17 RC6 Version Details Vulnerabilities
36 OS Linux Linux Kernel 2.6.17 RC4 Version Details Vulnerabilities
37 OS Linux Linux Kernel 2.6.17 RC1 Version Details Vulnerabilities
38 OS Linux Linux Kernel 2.6.17 RC3 Version Details Vulnerabilities
39 OS Linux Linux Kernel 2.6.17.1 Version Details Vulnerabilities
40 OS Linux Linux Kernel 2.6.17.2 Version Details Vulnerabilities
41 OS Linux Linux Kernel 2.6.17.3 Version Details Vulnerabilities
42 OS Linux Linux Kernel 2.6.17.4 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 42

- References For CVE-2006-3626

http://secunia.com/advisories/21041
SECUNIA 21041
http://secunia.com/advisories/21057
SECUNIA 21057
http://secunia.com/advisories/21073
SECUNIA 21073
http://secunia.com/advisories/21179
SECUNIA 21179
http://secunia.com/advisories/21119
SECUNIA 21119
http://secunia.com/advisories/21123
SECUNIA 21123
http://secunia.com/advisories/21605
SECUNIA 21605
http://www.redhat.com/support/errata/RHSA-2006-0617.html
REDHAT RHSA-2006:0617
http://www.osvdb.org/27120
OSVDB 27120
http://www.novell.com/linux/security/advisories/2006_49_kernel.html
SUSE SUSE-SA:2006:049
http://www.novell.com/linux/security/advisories/2006_47_kernel.html
SUSE SUSE-SA:2006:047
http://www.novell.com/linux/security/advisories/2006_42_kernel.html
SUSE SUSE-SA:2006:042
http://www.novell.com/linux/security/advisories/2006_17_sr.html
SUSE SUSE-SR:2006:017
http://www.mandriva.com/security/advisories?name=MDKSA-2006:124
MANDRIVA MDKSA-2006:124
http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blobdiff;h=0cb8f20d000c25118947fcafa81606300ced35f8;hp=243a94af0427b2630fb85f489a5419410dac3bfc;hb=18b0bbd8ca6d3cb90425aa0d77b99a762c6d6de3;f=fs/proc/base.c CONFIRM
http://secunia.com/advisories/21498
SECUNIA 21498
http://www.frsirt.com/english/advisories/2006/2816
VUPEN ADV-2006-2816
http://www.debian.org/security/2006/dsa-1111
DEBIAN DSA-1111
http://support.avaya.com/elmodocs2/security/ASA-2006-203.htm CONFIRM
http://secunia.com/advisories/22174
SECUNIA 22174
http://www.ubuntu.com/usn/usn-319-2
UBUNTU USN-319-2
http://www.securityfocus.com/bid/18992
BID 18992 Linux Kernel PROC Filesystem Local Privilege Escalation Vulnerability Release Date:2006-09-28
http://www.securityfocus.com/archive/1/archive/1/440300/100/0/threaded
BUGTRAQ 20060717 rPSA-2006-0130-1 kernel
http://www.ubuntulinux.org/support/documentation/usn/usn-319-1
UBUNTU USN-319-1
http://xforce.iss.net/xforce/xfdb/27790
XF linux-proc-race-condition(27790)
http://lists.grok.org.uk/pipermail/full-disclosure/2006-July/047907.html
FULLDISC 20060714 Linux kernel 0day - dynamite inside, don't burn your fingers
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=198973 CONFIRM
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.17.5 CONFIRM

- Metasploit Modules Related To CVE-2006-3626

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


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