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TITLE:
Subversion Client Directory Traversal Vulnerability

SECUNIA ADVISORY ID:
SA26625

VERIFY ADVISORY:
http://secunia.com/advisories/26625/

CRITICAL:
Moderately critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
Subversion 1.x
http://secunia.com/product/3376/

DESCRIPTION:
A vulnerability has been reported in Subversion, which can be
exploited by malicious people to compromise a user's system.

The vulnerability is caused due to the Subversion client not
correctly sanitising the name of files during a checkout or update.
This can be exploited to create arbitrary files outside the working
directory on a client system by setting up a malicious repository or
committing a malicious file (requires commit access) containing
directory traversal sequences ("..\") in the file name and tricking a
user into checking out or updating the repository.

Successful exploitation requires that the client runs on a system
that handles "\" as separator for directories (e.g. Windows).

The vulnerability is reported in version 1.4.4 and prior.

SOLUTION:
Update to version 1.4.5.

PROVIDED AND/OR DISCOVERED BY:
Nils Durner and Christian Grothoff, Colorado Research Institute for
Security and Privacy

ORIGINAL ADVISORY:
http://subversion.tigris.org/servlets/NewsItemView?newsItemID=1941
http://subversion.tigris.org/servlets/ReadMsg?list=users&msgNo=69413

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

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