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CollabNet Subversion Edge Management Missing Password Check

CollabNet Subversion Edge Management Missing Password Check
Posted Jun 30, 2015
Authored by otr

The management frontend does not require the old password for changing the password to a new one. An authenticated attacker may perform password setting attacks via XSRF without knowing the current password. An attacker that stole a Session ID (cookie) is able to gain persistent access by changing the password. Fixed in version 5.0. Version 4.0.11 is affected.

tags | advisory
SHA-256 | b01690bfbbc4be90118e3f7f950ff41e45b8a303eb3e13ca92e517d946087a0a

CollabNet Subversion Edge Management Missing Password Check

Change Mirror Download
# Vuln Title: The CollabNet Subversion Edge management frontend does not require
# current password upon password change
#
# 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: Insecure password change

# 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 management frontend does not require the old password for changing the
password to a new one. An authenticated attacker may perform password setting
attacks via XSRF without knowing the current password. An attacker that stole a
Session ID (cookie) is able to gain persistent access by changing the password.

Fix proposal:

A password change should require the old password to be provided.

Vendor fix:

When a user is changing their password, they are now required to enter their
current password.
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