exploit the possibilities

ledgersmb-bypass.txt

ledgersmb-bypass.txt
Posted Jul 19, 2007
Authored by Chris Travers

LedgerSMB versions 1.2.0 through 1.2.6 suffer from an authentication bypass.

tags | advisory, bypass
MD5 | da593cf217e1cd7ff7d1ecd11e8c035a

ledgersmb-bypass.txt

Change Mirror Download
A security issue has been found which allows an unauthenticated user to 
bypass the authentication system in LedgerSMB 1.2.0 through 1.2.6.

Severity: Highly Critical
Versions affected: 1.2.0 through 1.2.6
Status: Vendor solution available (upgrade to 1.2.7)
Effect: Authentication bypass.
Required knowledge: A valid username for any user.
Related Advisory ID's: Bugtraq ID: 24940
No CVE has yet been assigned.
Exploit complexity: Simple


This is listed as highly critical because it could be used to access the
entire application masquerading as a different user than one is
authorized to use. This is a serious risk in any financial system as it
could be a vector for embezzlement and covering up dishonest activities.

Origins and Information:
The problem occurs because of a flaw in the redirect code which was
replaced in order to support additional environments. The redirection
code in this case can be accessed through the login module and tricked
into providing access without proper authentication.

Exploits can be performed by setting the action variable in the http
request to "redirect" with a callback variable set to the escaped URL
representing the desired action.

Not affected:
LedgerSMB prior to 1.2.0 or after 1.2.6
SQL-Ledger (any version)

Solution:
Upgrade to LedgerSMB 1.2.7

Credit:
This was discovered by a core member of the LedgerSMB team who has asked
to remain anonymous. This disclosure is intended to help those who
manufacture security products or are responsible for the security of
their networks. All questions regarding more information on this
vulnerability can be directed to Chris Travers ( chris@metatrontech.com
<mailto:chris@metatrontech.com> or chris.travers@gmail.com
<mailto:chris.travers@gmail.com>).

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

February 2020

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Feb 1st
    1 Files
  • 2
    Feb 2nd
    2 Files
  • 3
    Feb 3rd
    17 Files
  • 4
    Feb 4th
    15 Files
  • 5
    Feb 5th
    24 Files
  • 6
    Feb 6th
    16 Files
  • 7
    Feb 7th
    19 Files
  • 8
    Feb 8th
    1 Files
  • 9
    Feb 9th
    2 Files
  • 10
    Feb 10th
    15 Files
  • 11
    Feb 11th
    20 Files
  • 12
    Feb 12th
    12 Files
  • 13
    Feb 13th
    18 Files
  • 14
    Feb 14th
    17 Files
  • 15
    Feb 15th
    4 Files
  • 16
    Feb 16th
    4 Files
  • 17
    Feb 17th
    34 Files
  • 18
    Feb 18th
    15 Files
  • 19
    Feb 19th
    19 Files
  • 20
    Feb 20th
    20 Files
  • 21
    Feb 21st
    15 Files
  • 22
    Feb 22nd
    2 Files
  • 23
    Feb 23rd
    2 Files
  • 24
    Feb 24th
    16 Files
  • 25
    Feb 25th
    37 Files
  • 26
    Feb 26th
    15 Files
  • 27
    Feb 27th
    15 Files
  • 28
    Feb 28th
    4 Files
  • 29
    Feb 29th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2016 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close