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Secunia Security Advisory 18785

Secunia Security Advisory 18785
Posted Feb 14, 2006
Authored by Secunia | Site secunia.com

Secunia Security Advisory - Secunia Research has discovered a vulnerability in NeoMail, which can be exploited by malicious people to bypass certain security restrictions.

tags | advisory
SHA-256 | ccb88a8c6c54d9413a7d9e93c4464c08270501be7dc3fcbfff0806fd1c1a0fe9

Secunia Security Advisory 18785

Change Mirror Download


TITLE:
NeoMail neomail-prefs.pl Missing Session ID Validation

SECUNIA ADVISORY ID:
SA18785

VERIFY ADVISORY:
http://secunia.com/advisories/18785/

CRITICAL:
Moderately critical

IMPACT:
Security Bypass

WHERE:
>From remote

SOFTWARE:
NeoMail 1.x
http://secunia.com/product/8022/

DESCRIPTION:
Secunia Research has discovered a vulnerability in NeoMail, which can
be exploited by malicious people to bypass certain security
restrictions.

The vulnerability is caused due to missing validation of the Session
ID in the "addfolder()" and "deletefolder()" functions in
neomail-prefs.pl. This can be exploited to create mail-folder files
in arbitrary directories writable by the mail group (e.g. in users'
"/var/neomail/users" NeoMail directories), and to delete mail-folder
files created by arbitrary users if the names of the folder files are
known.

Successful exploitation requires that NeoMail is configured with
$homedirfolders = 'no' and $homedirspools = 'no'.

The vulnerability has been confirmed in version 1.28. Prior versions
may also be affected.

SOLUTION:
Update to version 1.29.
http://sourceforge.net/project/showfiles.php?group_id=2874

PROVIDED AND/OR DISCOVERED BY:
Tan Chew Keong, Secunia Research.

ORIGINAL ADVISORY:
Secunia Research:
http://secunia.com/secunia_research/2006-3/advisory/

NeoMail:
http://sourceforge.net/project/shownotes.php?release_id=392562&group_id=2874

----------------------------------------------------------------------

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

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------

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