LinuxSecurity.com
Share your story
The central voice for Linux and Open Source security news
Home News Topics Advisories HOWTOs Features Newsletters About Register

Welcome!
Sign up!
EnGarde Community
Login
Polls
What is the most important Linux security technology?
 
Advisories
Community
Linux Events
Linux User Groups
Link to Us
Security Center
Book Reviews
Security Dictionary
Security Tips
SELinux
White Papers
Featured Blogs
All About Linux
DanWalsh LiveJournal
Securitydistro
Latest Newsletters
Linux Advisory Watch: November 21st, 2014
Linux Security Week: November 17th, 2014
Subscribe
LinuxSecurity Newsletters
E-mail:
Choose Lists:
About our Newsletters
RSS Feeds
Get the LinuxSecurity news you want faster with RSS
Powered By

  
Gentoo: ProFTPD ACL bypass vulnerability Print E-mail
User Rating:      How can I rate this item?
Posted by LinuxSecurity.com Team   
Gentoo Version 1.2.9 of ProFTPD introduced a vulnerability that causes CIDR-based Access Control Lists automatically allow remote users full access to available files.

Gentoo Linux Security Advisory                           GLSA 200405-09
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                             http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: High
     Title: ProFTPD Access Control List bypass vulnerability
      Date: May 19, 2004
      Bugs: #49496
        ID: 200405-09

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

Version 1.2.9 of ProFTPD introduced a vulnerability that causes
CIDR-based Access Control Lists (ACLs) to be treated as "AllowAll",
thereby allowing remote users full access to files available to the
FTP daemon.

Background
==========

ProFTPD is an FTP daemon.

Affected packages
=================

    -------------------------------------------------------------------
     Package          /   Vulnerable   /                    Unaffected
    -------------------------------------------------------------------
  1  net-ftp/proftpd      == 1.2.9-r1                      >= 1.2.9-r2
  1  net-ftp/proftpd      == 1.2.9                         >= 1.2.9-r2

Description
===========

ProFTPD 1.2.9 introduced a vulnerability that allows CIDR-based ACLs
(such as 10.0.0.1/24) to be bypassed. The CIDR ACLs are disregarded,
with the net effect being similar to an "AllowAll" directive.

Impact
======

This vulnerability may allow unauthorized files, including critical
system files to be downloaded and/or modified, thereby allowing a
potential remote compromise of the server.

Workaround
==========

Users may work around the problem by avoiding use of CIDR-based ACLs.

Resolution
==========

ProFTPD users are encouraged to upgrade to the latest version of the
package:

    # emerge sync

    # emerge -pv ">=net-ftp/proftpd-1.2.9-r2"
    # emerge ">=net-ftp/proftpd-1.2.9-r2"

References
==========

  [ 1 ] CAN-2004-0432
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0432

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

      http://security.gentoo.org/glsa/glsa-200405-09.xml

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 
http://bugs.gentoo.org.

License
=======

Copyright 2004 Gentoo Technologies, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
 
http://creativecommons.org/licenses/by-sa/1.0

 
< Prev   Next >
    
Partner

 

Latest Features
Peter Smith Releases Linux Network Security Online
Securing a Linux Web Server
Password guessing with Medusa 2.0
Password guessing as an attack vector
Squid and Digest Authentication
Squid and Basic Authentication
Demystifying the Chinese Hacking Industry: Earning 6 Million a Night
Free Online security course (LearnSIA) - A Call for Help
What You Need to Know About Linux Rootkits
Review: A Practical Guide to Fedora and Red Hat Enterprise Linux - Fifth Edition
Yesterday's Edition
How to weed out the next Heartbleed bug: ENISA details crypto worries
Attackers Using Compromised Web Plug-Ins in CryptoPHP Blackhat SEO Campaign
Finally, a New Clue to Solve the CIA’s Mysterious Kryptos Sculpture
Partner Sponsor

Community | HOWTOs | Blogs | Features | Book Reviews | Networking
 Security Projects |  Latest News |  Newsletters |  SELinux |  Privacy |  Home
 Hardening |   About Us |   Advertise |   Legal Notice |   RSS |   Guardian Digital
(c)Copyright 2014 Guardian Digital, Inc. All rights reserved.