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             AUSCERT External Security Bulletin Redistribution

                 ESB-2006.0948 -- [Win][UNIX/Linux][Linux]
                        Buffer overflow in ProFTPD
                             27 December 2006

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              ProFTPD 1.3.0a and prior
Publisher:            OpenPKG
Operating System:     UNIX variants (UNIX, Linux, OSX)
                      Linux variants
                      Windows
Impact:               Increased Privileges
                      Denial of Service
Access:               Remote/Unauthenticated
CVE Names:            CVE-2006-6563

Comment: This advisory references vulnerabilities in products which run on
         multiple platforms. It is recommended that administrators running
         ProFTPD check for an updated version of the software for their
         operating system.

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____________________________________________________________________________

Publisher Name:          OpenPKG GmbH
Publisher Home:          http://openpkg.com/

Advisory Id (public):    OpenPKG-SA-2006.039
Advisory Type:           OpenPKG Security Advisory (SA)
Advisory Directory:      http://openpkg.com/go/OpenPKG-SA
Advisory Document:       http://openpkg.com/go/OpenPKG-SA-2006.039
Advisory Published:      2006-12-15 23:55 UTC

Issue Id (internal):     OpenPKG-SI-20061215.01
Issue First Created:     2006-12-15
Issue Last Modified:     2006-12-15
Issue Revision:          07
____________________________________________________________________________

Subject Name:            ProFTPD
Subject Summary:         Professional FTP Daemon
Subject Home:            http://www.proftpd.org/
Subject Versions:        * < 1.3.1rc1

Vulnerability Id:        CVE-2006-6563
Vulnerability Scope:     global (not OpenPKG specific)

Attack Feasibility:      run-time
Attack Vector:           remote network
Attack Impact:           denial of service, privilege escalation,
                         arbitrary code execution

Description:
    A vulnerability exists in the FTP server ProFTPD, versions up to
    and including 1.3.0a. The vulnerability is caused by a stack-based
    buffer overflow in the "pr_ctrls_recv_request" function of the
    "Controls" feature. This is an optional feature of ProFTPD server
    which is by default disabled in OpenPKG and that must be explicitly
    activated with the "with_ctrls" build-time option of the OpenPKG
    "profptd" package.
    
    Controls are a way to communicate directly with a standalone ProFTPD
    daemon while it is running. This provides administrators a way to
    alter the daemon's behavior in real time, without having to restart
    the daemon and have it re-read its configuration. The Controls
    feature allows authorized users to locally manage parameters of the
    ProFTPD servers, like aborting connections, managing users, changing
    log levels, disabling individual virtual servers, etc.
    
    The vulnerability allows local attackers with access to the
    Controls features (and who have been allowed by Controls ACLs
    in "proftpd.conf") to execute arbitrary code or even gain root
    privileges.

References:
    [0] http://www.proftpd.org/
____________________________________________________________________________

Primary Package Name:    proftpd
Primary Package Home:    http://openpkg.org/go/package/proftpd

Corrected Distribution:  Corrected Branch: Corrected Package:
OpenPKG Enterprise       E1.0-SOLID        proftpd-1.3.0-E1.0.2
____________________________________________________________________________

For security reasons, this document was digitally signed with the
OpenPGP public key of the OpenPKG GmbH (public key id 61B7AE34)
which you can download from http://openpkg.com/openpkg.com.pgp
or retrieve from the OpenPGP keyserver at hkp://pgp.openpkg.org/.
Follow the instructions at http://openpkg.com/security/signatures/
for more details on how to verify the integrity of this document.
____________________________________________________________________________

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