full-disclosure - [FD] CollabNet Subversion Edge missing clickjacking protection

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Message-ID: <20150629100503.GI13114@tortuga>
Date: Mon, 29 Jun 2015 12:05:03 +0200
From: Oliver-Tobias Ripka <otr@...kcay.de>
To: fulldisclosure@...lists.org
Subject: [FD] CollabNet Subversion Edge missing clickjacking protection

# Vuln Title: The CollabNet Subversion Edge Management Frontend does not
# implement clickjacking protection
#
# 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: Clickjacking
#
# 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:

It might be possible for a web page controlled by an attacker to load the
content of this response within an iframe on the attacker's page. The
application's response does not set a suitable X-Frame-Options header in order
to prevent framing attacks.

Fix proposal:

To effectively prevent framing attacks, the application should return a response
header with the name X-Frame-Options and the value DENY to prevent framing
altogether, or the value SAMEORIGIN to allow framing only by pages on the same
origin as the response itself.

Vendor fix:

X-Frame-Options is set by default to DENY. It is configurable.

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