From: Secunia Security Advisories (sec-advsecunia.com)
Date: Thu Jul 07 2005 - 13:52:41 CDT

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TITLE:
Debian "apt-setup" Insecure File Permission Security Issue

SECUNIA ADVISORY ID:
SA15955

VERIFY ADVISORY:
http://secunia.com/advisories/15955/

CRITICAL:
Less critical

IMPACT:
Exposure of sensitive information

WHERE:
Local system

OPERATING SYSTEM:
Debian GNU/Linux 2.x
http://secunia.com/product/144/
Debian GNU/Linux 3.0
http://secunia.com/product/143/
Debian GNU/Linux 3.1
http://secunia.com/product/5307/
Debian GNU/Linux unstable alias sid
http://secunia.com/product/530/

DESCRIPTION:
Alexander Mader has reported a security issue in Debian apt-setup,
which can be exploited by malicious, local users to gain knowledge of
sensitive information.

The security issue is caused due to the file "apt.conf" being created
by "apt-setup" with world readable permission during installation.
This makes it possible to gain knowledge of its content, which may
contain sensitive information such as the proxy password.

The security issue has been reported in Debian 3.1, "apt" version
0.5.28.1. Other versions may also be affected.

SOLUTION:
Grant only trusted users access to affected systems.

PROVIDED AND/OR DISCOVERED BY:
Alexander Mader

ORIGINAL ADVISORY:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=305142

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