CollabNet Subversion Edge weak password storage mechanism

2015-07-05T00:00:00
ID SECURITYVULNS:DOC:32280
Type securityvulns
Reporter Securityvulns
Modified 2015-07-05T00:00:00

Description

Vuln Title: The CollabNet Subversion Edge stores passwords as unsalted MD5 hashes

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 storage

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 stores passwords as unsalted MD5 hashes. Unsalted MD5 hashes can easily be cracked by brute forcing the password.

Fix proposal:

Use a strong password storage algorithm like scrypt or PBKDF2.

Vendor fix:

We opted to go with bcrypt. It has more usage than scrypt and does not have any known vulnerabilities; it is also more easily supported with the subversion server, not just the Edge admin console. The strength factor is configurable.