bugtraq - CollabNet Subversion Edge downloadHook local file inclusion

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date: Sun, 28 Jun 2015 20:36:11 +0200
From: Oliver-Tobias Ripka <otr@...kcay.de>
To: undisclosed-recipients: ;
Subject: CollabNet Subversion Edge downloadHook local file inclusion

# Vuln Title: Local file inclusion in CollabNet Subversion Edge Management
# Frontend via logfile "filename" parameter of the "downloadHook" action
#
# 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: Local file inclusion
#
# 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 allows authenticated admins to
read arbitrary local files via logfile "filename" parameter of the
"downloadHook" action

Vulnerability:

	Example URL:
		https://example.com:4434/csvn/repo/downloadHook/1?filename=../../../../../../etc/passwd

Fix proposal:

Remove feature or santizes the "filename" parameter so that no path traversals
and arbitrary file inclusions are possible.

Vendor fix:

[...] now allow only showing hooks/logs within the intended directories.