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Debian Network Installation Insecure Default Directory Permissions
Secunia Advisory: SA19331
Release Date: 2006-03-23
Last Update: 2006-03-27
Popularity: 8,405 views

Critical:
Not critical
Impact: Security Bypass
DoS
Where: Local system
Solution Status: Unpatched

OS:Debian GNU/Linux 3.1

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
Ferenczi Viktor has discovered a weakness in Debian, which can be exploited by malicious, local users to bypass certain security restrictions and potentially cause a DoS (Denial of Service).

The weakness is caused due to the "/var/log/debian-installer/cdebconf" directory being left behind with world-writable permissions after completion of installation using the network install CD. This can potentially be exploited by malicious users to cause a DoS by e.g. filling up the /var/log partition.

The vulnerability has been confirmed in debian-31r1a-i386-netinst.iso and also reported in version 3.1r1. Other versions may also be affected.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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