pam_mount Insecure Temporary File Creation Vulnerability

BID:32374

Info

pam_mount Insecure Temporary File Creation Vulnerability

Bugtraq ID: 32374
Class: Design Error
CVE: CVE-2008-5138
Remote: No
Local: Yes
Published: Aug 14 2008 12:00AM
Updated: Mar 03 2009 05:46PM
Credit: Dmitry E. Oboukhov
Vulnerable: SuSE SUSE Linux Enterprise Server 9
SuSE SUSE Linux Enterprise Server 10
S.u.S.E. openSUSE 11.1
S.u.S.E. openSUSE 11.0
S.u.S.E. openSUSE 10.3
pam_mount pam_mount 0.43
Mandriva Linux Mandrake 2009.0 x86_64
Mandriva Linux Mandrake 2009.0
Mandriva Linux Mandrake 2008.1 x86_64
Mandriva Linux Mandrake 2008.1
Mandriva Linux Mandrake 2008.0 x86_64
Mandriva Linux Mandrake 2008.0
MandrakeSoft Corporate Server 4.0 x86_64
MandrakeSoft Corporate Server 4.0
Not Vulnerable:

Discussion

pam_mount Insecure Temporary File Creation Vulnerability

The 'pam_mount' module creates temporary files in an insecure manner.

An attacker with local access could perform symbolic-link attacks, overwriting arbitrary files in the context of the affected application.

Successfully mounting a symlink attack may allow the attacker to delete or corrupt sensitive files, which may result in a denial of service. Other attacks may also be possible.

This issue affects pam_mount 0.43; other versions may also be affected.

Exploit / POC

pam_mount Insecure Temporary File Creation Vulnerability

An attacker uses readily available commands to launch attacks.

Solution / Fix

pam_mount Insecure Temporary File Creation Vulnerability

Solution:
The vendor has released fixes to address this issue. Please see the references for more information.


Mandriva Linux Mandrake 2009.0 x86_64

Mandriva Linux Mandrake 2008.1 x86_64

Mandriva Linux Mandrake 2008.0 x86_64

Mandriva Linux Mandrake 2008.1

Mandriva Linux Mandrake 2008.0

Mandriva Linux Mandrake 2009.0

MandrakeSoft Corporate Server 4.0

MandrakeSoft Corporate Server 4.0 x86_64

References

pam_mount Insecure Temporary File Creation Vulnerability

References:

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