TITLE:
Debian Installer Log Files Information Disclosure

SECUNIA ADVISORY ID:
SA19170

VERIFY ADVISORY:
http://secunia.com/advisories/19170/

CRITICAL:
Less critical

IMPACT:
Exposure of sensitive information

WHERE:
Local system

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

DESCRIPTION:
Joey Hess has reported a vulnerability in Debian, which can be
exploited by malicious, local users to disclose sensitive
information.

The problem is caused due to user credentials being written to
world-readable installation log files during installation. This can
be exploited to disclose the preseeded password of root and other
users if a preseed file is used for an automated install, and the
pppoeconf passwords in the base-config log file.

The vulnerability has been reported in version 4.0.3-31sarge5 and
4.0.14-7 of the shadow package, and version 2.53.10 of the
base-config package.

SOLUTION:
The vulnerability will reportedly be fixed in version 4.0.14-9 of the
shadow package.

PROVIDED AND/OR DISCOVERED BY:
Joey Hess

ORIGINAL ADVISORY:
Debian:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=356939

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