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Perl "File::Path::rmtree" Race Condition
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Secunia Advisory:
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SA13643
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Release Date:
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2004-12-26
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Last Update:
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2005-01-03
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Critical:
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Less critical
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Impact:
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Privilege escalation
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Where:
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Local system
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Solution Status:
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Unpatched
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| Software: | Perl 5.x
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| | CVE reference: | CVE-2004-0452 (Secunia mirror)
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This advisory is currently marked as unpatched!
- Companies can be alerted when a patch is released! |
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Description:
Paul Szabo has reported a vulnerability in Perl "File::Path::rmtree", allowing malicious, local users to gain escalated privileges.
The vulnerability is caused due to a race condition in the way "File::Path::rmtree" changes permissions on files before deleting them. This can be exploited by creating a symbolic link to arbitrary files.
Successful exploitation may allow changing permissions or removing arbitrary files, if root uses an application using the vulnerable code to delete files.
Solution:
Do not use applications, which use "File::Path::rmtree", on systems with untrusted users.
Provided and/or discovered by:
Paul Szabo
Changelog:
2005-01-03: Added CVE reference.
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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7 Related Secunia Security Advisories
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1. Perl "File::Path::rmtree" Insecure chmod on Symbolic Links
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2. Perl Regular Expressions Unicode Data Buffer Overflow
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3. Perl Explicit Format Parameter Index Integer Overflow Vulnerability
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4. Perl "File::Path::rmtree" Directory Permissions Race Condition
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5. Perl "PERLIO_DEBUG" Privilege Escalation Vulnerabilities
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6. Perl Multiple Scripts Insecure Temporary File Creation Vulnerabilities
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7. Perl win32_stat Function Buffer Overflow Vulnerability
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