J-Security Center

Title: Mandrake passwd PAM md5 Support Lacking Vulnerability

Severity: MODERATE

Description:

passwd is a Unix utility used to change a user's password. PAM is a modular system for implementing various authentication methods, and is used by passwd in current Mandrake Linux distributions.

Historically, most Unix implementations use crypt for password encryption. In recent years, concerns with the strength of this algorithm have cause a general migration towards stronger cryptography. One method used is to hash passwords with the md5 algorithm.

In some distributions of Mandrake, the pam files used by passwd do not include support for md5 encryption. After the installation process is complete, any password changes or new accounts created will not have md5 encrypted passwords. This may result in lower security than anticipated.

Affected Products:

  • MandrakeSoft Linux Mandrake 8.1.0

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