TITLE:
newsgrab Two Vulnerabilities

SECUNIA ADVISORY ID:
SA14083

VERIFY ADVISORY:
http://secunia.com/advisories/14083/

CRITICAL:
Moderately critical

IMPACT:
Privilege escalation, System access

WHERE:
>From remote

SOFTWARE:
newsgrab 0.x
http://secunia.com/product/4588/

DESCRIPTION:
Niels Heinen has reported two vulnerabilities in newsgrab, which can
be exploited by malicious, local users to perform certain actions on
a vulnerable system with escalated privileges, and potentially by
malicious people to compromise a user's system.

1) The problem is that downloaded files are created insecurely in the
output directory which is world writeable. This can e.g. be exploited
via symlink attacks to overwrite arbitrary files with the privileges
of the user running newsgrab.

2) Input from newsgroups messages isn't properly sanitised before
being used to save attachments. This can be exploited to place
attachments in arbitrary locations via directory traversal attacks.

SOLUTION:
Update to version 0.5.0pre4.
http://sourceforge.net/project/showfiles.php?group_id=52048

PROVIDED AND/OR DISCOVERED BY:
Niels Heinen

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