SuSE AAA_Base_Clean_Core Script RM Race Condition Vulnerability

BID:4758

Info

SuSE AAA_Base_Clean_Core Script RM Race Condition Vulnerability

Bugtraq ID: 4758
Class: Design Error
CVE:
Remote: No
Local: Yes
Published: May 16 2002 12:00AM
Updated: May 16 2002 12:00AM
Credit: Vulnerability discovery credited to Paul Starzetz <[email protected]>.
Vulnerable: SuSE Linux 7.3 sparc
SuSE Linux 7.3 ppc
SuSE Linux 7.3 i386
SuSE Linux 7.2 i386
SuSE Linux 7.1 x86
SuSE Linux 7.1 sparc
SuSE Linux 7.1 ppc
SuSE Linux 7.1 alpha
SuSE Linux 7.0 sparc
SuSE Linux 7.0 ppc
SuSE Linux 7.0 i386
SuSE Linux 7.0 alpha
SuSE Linux 6.4 ppc
SuSE Linux 6.4 i386
SuSE Linux 6.4 alpha
Not Vulnerable:

Discussion

SuSE AAA_Base_Clean_Core Script RM Race Condition Vulnerability

SuSE Linux is a freely available, open source operating system. It is maintained by SuSE.

A user could create a deeply nested directory structure that would be descended by the recursive rm command, executed by the aaa_base_clean_core script daily. Upon descent into this directory tree, a user could move the current working directory of the process higher in the directory structure, causing the rm process to ascend higher than intended and remove system files, including the root directory.

Exploit / POC

SuSE AAA_Base_Clean_Core Script RM Race Condition Vulnerability

No exploit code is required for this vulnerability.

Solution / Fix

SuSE AAA_Base_Clean_Core Script RM Race Condition Vulnerability

Solution:
Fixes available:


SuSE Linux 6.4 ppc

SuSE Linux 6.4 alpha

SuSE Linux 6.4 i386

SuSE Linux 7.0 alpha

SuSE Linux 7.0 i386

SuSE Linux 7.0 sparc

SuSE Linux 7.0 ppc

SuSE Linux 7.1 x86

SuSE Linux 7.1 sparc

SuSE Linux 7.1 alpha

SuSE Linux 7.1 ppc

SuSE Linux 7.2 i386

SuSE Linux 7.3 sparc

SuSE Linux 7.3 ppc

SuSE Linux 7.3 i386

References

SuSE AAA_Base_Clean_Core Script RM Race Condition Vulnerability

References:

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