PT-2011-38: URL redirector abuse in Citrix XenServer Virtual Switch Controller
Vulnerable software
Citrix XenServer Virtual Switch Controller
Version: 6.0.1 and earlier
Application link:
http://support.citrix.com/article/CTX129669
Severity level
Severity level: Medium
Impact: Phishing
Access Vector: Network exploitable
CVSS v2:
Base Score: 4.3
Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)
CVE: not assigned
Vulnerability description
Positive Research Center has discovered an URL redirector abuse in Citrix XenServer Virtual Switch Controller.
URL redirector (GET parameter last_page of the login page) allows forwarding to an arbitrary location. It allows an attacker to conduct a phishing attack.
How to fix
Update your software up to the latest version
Advisory status
10.11.2011 - Vendor is notified
10.11.2011 - Vendor gets vulnerability details
13.03.2012 - Vendor releases fixed version and details
27.03.2012 - Public disclosure
Credits
The vulnerability was discovered by Kirill Mosolov, Maxim Tsoy, Positive Research Center (Positive Technologies Company)
References
http://en.securitylab.ru/lab/PT-2011-38
https://support.citrix.com/article/CTX132476
Reports on the vulnerabilities previously discovered by Positive Research:
http://ptsecurity.com/research/advisory/
http://en.securitylab.ru/lab/