GLSA 200502-30: cmd5checkpw: Local password leak vulnerability
| Severity: | low |
| Title: | cmd5checkpw: Local password leak vulnerability |
| Date: | 02/25/2005 |
| Bugs: | |
| ID: | 200502-30 |
Synopsis
cmd5checkpw contains a flaw allowing local users to access other users cmd5checkpw passwords.Background
cmd5checkpw is a checkpassword compatible authentication program that uses CRAM-MD5 authentication mode.
Affected packages
| Package | Vulnerable | Unaffected | Architecture(s) |
|---|---|---|---|
| net-mail/cmd5checkpw | <= 0.22-r1 | >= 0.22-r2 | All supported architectures |
Description
Florian Westphal discovered that cmd5checkpw is installed setuid cmd5checkpw but does not drop privileges before calling execvp(), so the invoked program retains the cmd5checkpw euid.
Impact
Local users that know at least one valid /etc/poppasswd user/password combination can read the /etc/poppasswd file.
Workaround
There is no known workaround at this time.
Resolution
All cmd5checkpw users should upgrade to the latest available version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-mail/cmd5checkpw-0.22-r2"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.