exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

CollabNet Subversion Edge Management Credential Leak

CollabNet Subversion Edge Management Credential Leak
Posted Jun 29, 2015
Authored by otr

The CollabNet Subversion Edge Management Frontend leaks the unsalted MD5 hash of password of the currently logged in user via a "POST /csvn/user/index" request. An attacker that exploits an XSS or has gained a valid session via other means is able to retrieve the unsalted MD5 hash of the corresponding user and easily crack the hash in order to know the users password. Fixed in version 5.0.

tags | exploit, info disclosure
SHA-256 | 1d88ce5b1e015850cee7a266039f0317d57a1d11a0b2b10402aefdd630149ba1

CollabNet Subversion Edge Management Credential Leak

Change Mirror Download
# Vuln Title: The CollabNet Subversion Edge Management frontend user credential
# (hash) leak
#
# Date: 28.06.2015
# Author: otr
# Software Link: https://www.open.collab.net/downloads/svnedge
# Vendor: CollabNet
# Version: 4.0.11
# Tested on: Fedora Linux
# Type: Credential leak
#
# Risk: Medium
# Status: public/fixed
# Fixed version: 5.0

Timeline:

2014-10-09 Flaw Discovered
2014-10-20 Vendor contacted
2014-10-21 Vendor response
2014-12-08 Vendor fix proposal
2014-12-08 Extension of embargo to 19.4.2015
2015-05-04 Extension of embargo until release of version 5.0
2015-05-18 Release of version 5.0 and public disclosure

Summary:

The CollabNet Subversion Edge Management Frontend leaks the unsalted MD5 hash of
password of the currently logged in user via a "POST /csvn/user/index" request.
An attacker that exploits an XSS or has gained a valid session via other means
is able to retrieve the unsalted MD5 hash of the corresponding user and easily
crack the hash in order to know the users password.

Request 1 (set password)
POST /csvn/user/index HTTP/1.1
Host: example.com:4434
[...]
id=5&version=15&passwd_change_active=false&passwd=aaaaa&confirmPasswd=&realUserName=XXX&email=YYYY&description=ZZZ&_action_update=Update

Response 1:
HTTP/1.1 302 Found
[...]
Location: https://example.com:4434/csvn/user/show/5
Content-Length: 0

Request 2 (generated by clicking edit in the following page; request below the iamge):
GET /csvn/user/edit/5 HTTP/1.1
Host: example.com:4434
[...]
Cookie: SESSID=xxxxxxxxxxxxxxxxxxxx;

Response 2 (leaked hash read from DB and echoed back into password change form):
HTTP/1.1 200 OK
[...]
<input type="password" id="passwd" name="passwd" value="4db81436059d080afe532cc0cbd1cea5"/>

Fix proposal:

Do not echo the current hash in the database back to the user when changing the
password. Only accept passwords as input fields and no hashes.

Vendor fix:

The leak is plugged.
Login or Register to add favorites

File Archive:

February 2024

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

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close