[ESA-20030225-006] WebTool session ID spoofing vulnerability.

From: EnGarde Secure Linux (security@guardiandigital.com)
Date: 02/25/03

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From: EnGarde Secure Linux <security@guardiandigital.com>
To: engarde-security@guardiandigital.com, "" <bugtraq@securityfocus.com>

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    +------------------------------------------------------------------------+
    | EnGarde Secure Linux Security Advisory February 25, 2003 |
    | http://www.engardelinux.org/ ESA-20030225-006 |
    | |
    | Package: WebTool |
    | Summary: WebTool session ID spoofing vulnerability. |
    +------------------------------------------------------------------------+

      EnGarde Secure Linux is a secure distribution of Linux that features
      improved access control, host and network intrusion detection, Web
      based secure remote management, e-commerce, and integrated open source
      security tools.

    OVERVIEW
    - --------
      Components of the Guardian Digital WebTool are derived from the popular
      Webmin package by Jamie Cameron.

      Keigo Yamazaki discovered a vulnerability in miniserv.pl (the
      webserver program at the core of the WebTool) which may allow an
      attacker to spoof a session ID by including special metacharacters in
      the BASE64 encoded string using during the authentication process.

      This may allow a remote attacker to gain full administrative privileges
      over the WebTool. All users are recommended to upgrade immediately.

    SOLUTION
    - --------
      Users of the EnGarde Professional edition can use the Guardian Digital
      Secure Network to update their systems automatically.

      EnGarde Community users should upgrade to the most recent version
      as outlined in this advisory. Updates may be obtained from:

        ftp://ftp.engardelinux.org/pub/engarde/stable/updates/
        http://ftp.engardelinux.org/pub/engarde/stable/updates/

      Before upgrading the package, the machine must either:

        a) be booted into a "standard" kernel; or
        b) have LIDS disabled.

      To disable LIDS, execute the command:

        # /sbin/lidsadm -S -- -LIDS_GLOBAL

      To install the updated package, execute the command:

        # rpm -Uvh files

      You must now update the LIDS configuration by executing the command:

        # /usr/sbin/config_lids.pl

      To re-enable LIDS (if it was disabled), execute the command:

        # /sbin/lidsadm -S -- +LIDS_GLOBAL

      To verify the signatures of the updated packages, execute the command:

        # rpm -Kv files

    UPDATED PACKAGES
    - ----------------
      These updated packages are for EnGarde Secure Linux Community
      Edition.

      Source Packages:

        SRPMS/WebTool-1.2-1.0.74.src.rpm
          MD5 Sum: 0394aebe923a8d29af49a0b41d495753

      Binary Packages:

        noarch/WebTool-1.2-1.0.74.noarch.rpm
          MD5 Sum: 9a77f14ae33c4e3de1bdd0d5a325f0d3

        noarch/WebTool-userpass-1.2-1.0.74.noarch.rpm
          MD5 Sum: 294fc1527f35b22b6db536b16730c25e

    REFERENCES
    - ----------
      Guardian Digital's public key:
        http://ftp.engardelinux.org/pub/engarde/ENGARDE-GPG-KEY

      WebTool's Official Web Site:
        http://www.engardelinux.org/

      Security Contact: security@guardiandigital.com
      EnGarde Advisories: http://www.engardelinux.org/advisories.html

    - --------------------------------------------------------------------------
    $Id: ESA-20030225-006-WebTool,v 1.1 2003/02/25 14:29:13 rwm Exp $
    - --------------------------------------------------------------------------
    Author: Ryan W. Maple <ryan@guardiandigital.com>
    Copyright 2003, Guardian Digital, Inc.

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