CollabNet Subversion Edge Management Tail LFI

2015.06.30

Credit: otr

Risk: High

Local: No

Remote: Yes

CVE: N/A

CWE: CWE-98

# Vuln Title: Local file inclusion in CollabNet Subversion Edge Management
# Frontend via logfile "fileName" parameter of the "tail" 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 "tail" action
Vulnerability:
Sample URL:
https://example.com:4434/csvn/log/tail?fileName=..%2F..%2F..%2F..%2F..%2F..%2Fetc%2Fpasswd&startIndex=0
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.

See this note in RAW Version

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CollabNet Subversion Edge Management Tail LFI

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