Gentoo Linux nullmailer Package '/etc/nullmailer/remotes' Insecure File Permissions Vulnerability

BID:61743

Info

Gentoo Linux nullmailer Package '/etc/nullmailer/remotes' Insecure File Permissions Vulnerability

Bugtraq ID: 61743
Class: Design Error
CVE: CVE-2013-4223
Remote: No
Local: Yes
Published: Aug 09 2013 12:00AM
Updated: Aug 09 2013 12:00AM
Credit: redneb
Vulnerable: Gentoo nullmailer 1.11-r1
Gentoo nullmailer 1.11
Not Vulnerable: Gentoo nullmailer 1.11-r2

Discussion

Gentoo Linux nullmailer Package '/etc/nullmailer/remotes' Insecure File Permissions Vulnerability

Gentoo Linux nullmailer package is prone to an insecure file-permission vulnerability.

A local attacker can exploit this issue by gaining access to a world-readable file and extracting sensitive information from it. Such information could aid in other attacks.

nullmailer versions prior to 1.11-r2 are vulnerable.

Exploit / POC

Gentoo Linux nullmailer Package '/etc/nullmailer/remotes' Insecure File Permissions Vulnerability

Attackers can use readily available tools and standard commands to exploit this issue.

Solution / Fix

Gentoo Linux nullmailer Package '/etc/nullmailer/remotes' Insecure File Permissions Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

References

Gentoo Linux nullmailer Package '/etc/nullmailer/remotes' Insecure File Permissions Vulnerability

References:

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