Linux Kernel 'proc' World Writeable File Security Bypass Vulnerability

BID:36806

Info

Linux Kernel 'proc' World Writeable File Security Bypass Vulnerability

Bugtraq ID: 36806
Class: Input Validation Error
CVE:
Remote: No
Local: Yes
Published: Oct 23 2009 12:00AM
Updated: Oct 23 2009 10:38PM
Credit: Pavel Machek
Vulnerable: Linux kernel 2.6.31 .2
Linux kernel 2.6.31 -rc7
Linux kernel 2.6.31 -rc6
Linux kernel 2.6.31 -rc3
+ Trustix Secure Enterprise Linux 2.0
+ Trustix Secure Linux 2.2
+ Trustix Secure Linux 2.1
+ Trustix Secure Linux 2.0
Linux kernel 2.6.31 -rc1
Linux kernel 2.6.31
Linux kernel 2.6.30 .1
Linux kernel 2.6.30 -rc6
Linux kernel 2.6.30 -rc5
Linux kernel 2.6.30 -rc3
Linux kernel 2.6.30 -rc2
Linux kernel 2.6.30 -rc1
Linux kernel 2.6.30
Linux kernel 2.6.29 .4
Linux kernel 2.6.29 .1
Linux kernel 2.6.29 -git8
Linux kernel 2.6.29 -git14
Linux kernel 2.6.29 -git1
Linux kernel 2.6.29
Linux kernel 2.6.28 .9
Linux kernel 2.6.28 .8
Linux kernel 2.6.28 .6
Linux kernel 2.6.28 .5
Linux kernel 2.6.28 .3
Linux kernel 2.6.28 .2
Linux kernel 2.6.28 .1
Linux kernel 2.6.28 -rc7
Linux kernel 2.6.28 -rc5
Linux kernel 2.6.28 -rc1
Linux kernel 2.6.28 -git7
Linux kernel 2.6.28
Linux kernel 2.6.27 6
Linux kernel 2.6.27 3
Linux kernel 2.6.27 12
Linux kernel 2.6.27 .8
Linux kernel 2.6.27 .5
Linux kernel 2.6.27 .5
Linux kernel 2.6.27 .24
Linux kernel 2.6.27 .14
Linux kernel 2.6.27 .13
Linux kernel 2.6.27 .12
Linux kernel 2.6.27 -rc8-git5
Linux kernel 2.6.27 -rc8
Linux kernel 2.6.27 -rc6-git6
Linux kernel 2.6.27 -rc6
Linux kernel 2.6.27 -rc5
Linux kernel 2.6.27 -rc2
Linux kernel 2.6.27 -rc1
Linux kernel 2.6.27
Linux kernel 2.6.26 7
Linux kernel 2.6.26 .6
Linux kernel 2.6.26 .4
Linux kernel 2.6.26 .3
Linux kernel 2.6.26 -rc6
Linux kernel 2.6.26
Linux kernel 2.6.25 19
Linux kernel 2.6.25 .9
Linux kernel 2.6.25 .8
Linux kernel 2.6.25 .7
Linux kernel 2.6.25 .6
Linux kernel 2.6.25 .5
Linux kernel 2.6.25 .15
Linux kernel 2.6.25 .13
Linux kernel 2.6.25 .12
Linux kernel 2.6.25 .11
Linux kernel 2.6.25 .10
Linux kernel 2.6.25
Linux kernel 2.6.25
Linux kernel 2.6.24 .2
Linux kernel 2.6.24 .1
Linux kernel 2.6.24 -rc5
Linux kernel 2.6.24 -rc4
Linux kernel 2.6.24 -rc3
Linux kernel 2.6.24 -git13
Linux kernel 2.6.24
Linux kernel 2.6.23 .7
Linux kernel 2.6.23 .6
Linux kernel 2.6.23 .5
Linux kernel 2.6.23 .4
Linux kernel 2.6.23 .3
Linux kernel 2.6.23 .2
Linux kernel 2.6.23 -rc2
Linux kernel 2.6.23 -rc1
Linux kernel 2.6.23
Linux kernel 2.6.22 .8
Linux kernel 2.6.22 .7
Linux kernel 2.6.22 .6
Linux kernel 2.6.22 .5
Linux kernel 2.6.22 .4
Linux kernel 2.6.22 .3
Linux kernel 2.6.22 .2
Linux kernel 2.6.22 .17
Linux kernel 2.6.22 .16
Linux kernel 2.6.22 .15
Linux kernel 2.6.22 .14
Linux kernel 2.6.22 .13
Linux kernel 2.6.22 .12
Linux kernel 2.6.22 .11
Linux kernel 2.6.22 .1
Linux kernel 2.6.22
Linux kernel 2.6.21 4
Linux kernel 2.6.21 .7
Linux kernel 2.6.21 .6
Linux kernel 2.6.21 .3
Linux kernel 2.6.21 .2
Linux kernel 2.6.21 .1
Linux kernel 2.6.21 -git8
Linux kernel 2.6.21
Linux kernel 2.6.20 .9
Linux kernel 2.6.20 .8
Linux kernel 2.6.20 .5
Linux kernel 2.6.20 .4
Linux kernel 2.6.20 .15
Linux kernel 2.6.20 .1
Linux kernel 2.6.20 -git5
Linux kernel 2.6.20
Linux kernel 2.6.20
+ Trustix Secure Enterprise Linux 2.0
+ Trustix Secure Linux 2.2
+ Trustix Secure Linux 2.1
+ Trustix Secure Linux 2.0
Linux kernel 2.6.19 .2
Linux kernel 2.6.19 .1
Linux kernel 2.6.19 .1
Linux kernel 2.6.19 -rc4
Linux kernel 2.6.19 -rc3
+ Trustix Secure Enterprise Linux 2.0
+ Trustix Secure Linux 2.2
+ Trustix Secure Linux 2.1
+ Trustix Secure Linux 2.0
Linux kernel 2.6.19 -rc2
+ Trustix Secure Enterprise Linux 2.0
+ Trustix Secure Linux 2.2
+ Trustix Secure Linux 2.1
+ Trustix Secure Linux 2.0
Linux kernel 2.6.19 -rc1
Linux kernel 2.6.19
+ Trustix Secure Enterprise Linux 2.0
+ Trustix Secure Linux 2.2
+ Trustix Secure Linux 2.1
+ Trustix Secure Linux 2.0
Linux kernel 2.6.18 .4
Linux kernel 2.6.18 .3
Linux kernel 2.6.18 .1
Linux kernel 2.6.18
Linux kernel 2.6.17 .9
Linux kernel 2.6.17 .8
Linux kernel 2.6.17 .7
Linux kernel 2.6.17 .6
Linux kernel 2.6.17 .5
Linux kernel 2.6.17 .4
Linux kernel 2.6.17 .3
Linux kernel 2.6.17 .2
Linux kernel 2.6.17 .14
Linux kernel 2.6.17 .13
Linux kernel 2.6.17 .12
Linux kernel 2.6.17 .11
Linux kernel 2.6.17 .10
Linux kernel 2.6.17 .1
Linux kernel 2.6.17 -rc5
Linux kernel 2.6.17
Linux kernel 2.6.17
Linux kernel 2.6.17
Linux kernel 2.6.17
Linux kernel 2.6.16 27
Linux kernel 2.6.16 13
Linux kernel 2.6.16 .9
Linux kernel 2.6.16 .8
Linux kernel 2.6.16 .7
Linux kernel 2.6.16 .5
Linux kernel 2.6.16 .4
Linux kernel 2.6.16 .3
Linux kernel 2.6.16 .23
Linux kernel 2.6.16 .21
Linux kernel 2.6.16 .2
Linux kernel 2.6.16 .19
Linux kernel 2.6.16 .18
Linux kernel 2.6.16 .17
Linux kernel 2.6.16 .16
Linux kernel 2.6.16 .12
Linux kernel 2.6.16 .11
Linux kernel 2.6.16 .1
Linux kernel 2.6.16 -rc1
Linux kernel 2.6.16
Linux kernel 2.6.16
Linux kernel 2.6.15 .6
Linux kernel 2.6.15 .4
Linux kernel 2.6.15 .3
Linux kernel 2.6.15 .2
Linux kernel 2.6.15 .1
Linux kernel 2.6.15 -rc6
Linux kernel 2.6.15 -rc5
Linux kernel 2.6.15 -rc4
Linux kernel 2.6.15 -rc3
Linux kernel 2.6.15 -rc2
Linux kernel 2.6.15 -rc1
Linux kernel 2.6.15
Linux kernel 2.6.15
+ Trustix Secure Enterprise Linux 2.0
+ Trustix Secure Linux 2.2
+ Trustix Secure Linux 2.1
+ Trustix Secure Linux 2.0
Linux kernel 2.6.14 .5
Linux kernel 2.6.14 .4
Linux kernel 2.6.14 .3
Linux kernel 2.6.14 .2
Linux kernel 2.6.14 .1
Linux kernel 2.6.14 -rc4
Linux kernel 2.6.14 -rc3
Linux kernel 2.6.14 -rc2
Linux kernel 2.6.14 -rc1
Linux kernel 2.6.14
Linux kernel 2.6.14
Linux kernel 2.6.13 .4
Linux kernel 2.6.13 .3
Linux kernel 2.6.13 .2
Linux kernel 2.6.13 .1
Linux kernel 2.6.13 -rc7
Linux kernel 2.6.13 -rc6
Linux kernel 2.6.13 -rc4
Linux kernel 2.6.13 -rc1
Linux kernel 2.6.13
Linux kernel 2.6.13
+ Trustix Secure Enterprise Linux 2.0
+ Trustix Secure Linux 2.2
+ Trustix Secure Linux 2.1
+ Trustix Secure Linux 2.0
Linux kernel 2.6.12 .6
Linux kernel 2.6.12 .5
Linux kernel 2.6.12 .4
Linux kernel 2.6.12 .3
Linux kernel 2.6.12 .22
Linux kernel 2.6.12 .2
Linux kernel 2.6.12 .12
Linux kernel 2.6.12 .1
Linux kernel 2.6.12 -rc5
Linux kernel 2.6.12 -rc4
Linux kernel 2.6.12 -rc1
Linux kernel 2.6.12
Linux kernel 2.6.12
Linux kernel 2.6.11 .8
Linux kernel 2.6.11 .7
Linux kernel 2.6.11 .6
Linux kernel 2.6.11 .5
Linux kernel 2.6.11 .4
Linux kernel 2.6.11 .12
Linux kernel 2.6.11 .11
Linux kernel 2.6.11 -rc4
Linux kernel 2.6.11 -rc3
Linux kernel 2.6.11 -rc2
Linux kernel 2.6.11
Linux kernel 2.6.11
Linux kernel 2.6.10 rc2
Linux kernel 2.6.10
Linux kernel 2.6.10
Linux kernel 2.6.9
Linux kernel 2.6.8 rc3
Linux kernel 2.6.8 rc2
Linux kernel 2.6.8 rc1
+ Ubuntu Ubuntu Linux 4.1 ppc
 + Ubuntu Ubuntu Linux 4.1 ia64
 + Ubuntu Ubuntu Linux 4.1 ia32
 Linux kernel 2.6.8
Linux kernel 2.6.7 rc1
Linux kernel 2.6.7
Linux kernel 2.6.6 rc1
Linux kernel 2.6.6
Linux kernel 2.6.5
Linux kernel 2.6.4
Linux kernel 2.6.3
Linux kernel 2.6.2
Linux kernel 2.6.1 -rc2
Linux kernel 2.6.1 -rc1
Linux kernel 2.6.1
Linux kernel 2.6 .10
Linux kernel 2.6 -test9-CVS
Linux kernel 2.6 -test9
Linux kernel 2.6 -test8
Linux kernel 2.6 -test7
Linux kernel 2.6 -test6
Linux kernel 2.6 -test5
Linux kernel 2.6 -test4
Linux kernel 2.6 -test3
Linux kernel 2.6 -test2
Linux kernel 2.6 -test11
Linux kernel 2.6 -test10
Linux kernel 2.6 -test1
Linux kernel 2.6.8.1
+ S.u.S.E. Linux Personal 9.2 x86_64
 + S.u.S.E. Linux Personal 9.2
+ Ubuntu Ubuntu Linux 4.1 ppc
 + Ubuntu Ubuntu Linux 4.1 ia64
 + Ubuntu Ubuntu Linux 4.1 ia32
 Linux kernel 2.6.32-rc4
Linux kernel 2.6.32-rc2
Linux kernel 2.6.32-rc1
Linux kernel 2.6.31.4
Linux kernel 2.6.31.2
Linux kernel 2.6.31-rc9
Linux kernel 2.6.31-rc8
Linux kernel 2.6.31-rc7
Linux kernel 2.6.31-rc5-git3
Linux kernel 2.6.31-rc2
Linux kernel 2.6.30.5
Linux kernel 2.6.30.4
Linux kernel 2.6.30.3
Linux kernel 2.6.29-rc2-git1
Linux kernel 2.6.29-rc2
Linux kernel 2.6.29-rc1
Linux kernel 2.6.28.4
Linux kernel 2.6.26.1
Linux kernel 2.6.26-rc5-git1
Linux kernel 2.6.25.4
Linux kernel 2.6.25.3
Linux kernel 2.6.25.2
Linux kernel 2.6.25.1
Linux kernel 2.6.25-rc1
Linux kernel 2.6.24.6
Linux kernel 2.6.24-rc2
Linux kernel 2.6.24-rc1
Linux kernel 2.6.23.14
Linux kernel 2.6.23.10
Linux kernel 2.6.23.1
Linux kernel 2.6.23.09
Linux kernel 2.6.22-rc7
Linux kernel 2.6.22-rc1
Linux kernel 2.6.21-RC6
Linux kernel 2.6.21-RC5
Linux kernel 2.6.21-RC4
Linux kernel 2.6.21-RC3
Linux kernel 2.6.21-RC3
Linux kernel 2.6.20.3
Linux kernel 2.6.20.2
Linux kernel 2.6.20.13
Linux kernel 2.6.20.11
Linux kernel 2.6.20-rc2
Linux kernel 2.6.20-2
Linux kernel 2.6.19 -rc6
Linux kernel 2.6.18-8.1.8.el5
Linux kernel 2.6.18-53
Linux kernel 2.6.18
Linux kernel 2.6.15.5
Linux kernel 2.6.15.11
Linux kernel 2.6.15-27.48
Linux kernel 2.6.11.4
Not Vulnerable:

Discussion

Linux Kernel 'proc' World Writeable File Security Bypass Vulnerability

The Linux kernel is prone to a security-bypass vulnerability.

Local attackers can exploit this issue to write to world-writable files that are located in directories that they don't have access to. Successful exploits may lead to other attacks.

Exploit / POC

Linux Kernel 'proc' World Writeable File Security Bypass Vulnerability

An attacker can use readily available command-line tools to exploit this issue.

Solution / Fix

Linux Kernel 'proc' World Writeable File Security Bypass Vulnerability

Solution:
Currently we are not aware of any vendor-supplied patches. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

References

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