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EnGarde: WebTool session ID spoofing Print E-mail
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Posted by Team   
EnGarde Keigo Yamazaki discovered a vulnerability in which may allow an attacker to spoof a session ID by including special metacharacters in the BASE64 encoded string using during the authentication process.

| EnGarde Secure Linux Security Advisory               February 25, 2003 |
|                         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.

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

  Keigo Yamazaki discovered a vulnerability in (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.

  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:

  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/

  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

  These updated packages are for EnGarde Secure Linux Community

  Source Packages:

      MD5 Sum: 0394aebe923a8d29af49a0b41d495753

  Binary Packages:

      MD5 Sum: 9a77f14ae33c4e3de1bdd0d5a325f0d3

      MD5 Sum: 294fc1527f35b22b6db536b16730c25e

  Guardian Digital's public key:

  WebTool's Official Web Site:

  Security Contact:
  EnGarde Advisories:

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

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