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AUSCERT External Security Bulletin Redistribution
ESB-2015.1436
Blue Coat SSL Visibility Appliance contains multiple vulnerabilities
2 June 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: Blue Coat SSL Visibility Appliance
Publisher: US-CERT
Operating System: Network Appliance
Impact/Access: Cross-site Request Forgery -- Remote with User Interaction
Provide Misleading Information -- Remote with User Interaction
Access Confidential Data -- Remote with User Interaction
Unauthorised Access -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2015-2855 CVE-2015-2854 CVE-2015-2853
CVE-2015-2852
Original Bulletin:
http://www.kb.cert.org/vuls/id/498348
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Vulnerability Note VU#498348
Blue Coat SSL Visibility Appliance contains multiple vulnerabilities
Original Release date: 29 May 2015 | Last revised: 29 May 2015
Overview
Blue Coat SSL Visibility Appliance SV800, SV1800, SV2800, and SV3800, versions
3.6.x to 3.8.3, contain multiple vulnerabilities.
Description
Blue Coat SSL Visibility Appliance SV800, SV1800, SV2800, and SV3800, versions
3.6.x to 3.8.3, contain multiple vulnerabilities.
CWE-352: Cross-Site Request Forgery (CSRF) - CVE-2015-2852
Blue Coat SSL Visibility Appliance contains a cross-site request forgery
(CSRF) vulnerability. An attacker can perform actions with the same
permissions as a victim user, provided the victim has an active session and is
induced to trigger the malicious request.
CWE-384: Session Fixation - CVE-2015-2853
A user's session ID is set prior to authentication, and is not invalidated or
changed at the time of authentication. An attacker capable of obtaining or
setting a session ID can hijack a victim user's session.
CWE-20: Improper Input Validation - CVE-2015-2854
Blue Coat SSL Visibility Appliance does not enforce same origin policy in
X-Frame-Options response headers. An attacker can conduct clickjacking attacks
via a crafted web page.
CWE-200: Information Exposure - CVE-2015-2855
Sensitive cookies do not have either the Secure or HttpOnly flags set. An
attacker capable of sniffing network traffic can intercept or manipulate a
victim user's session ID.
The CVSS score reflects CVE-2015-2852.
Impact
A remote, unauthenticated attacker may be able to obtain another user's
session ID, spoof a victim user's session, and perform actions with the same
permissions of a victim user.
Solution
Apply an update
Blue Coat has released SSL Visibility version 3.8.4 to address these issues.
Refer to the vendor's security advisory for more details.
Vendor Information (Learn More)
Vendor Status Date Notified Date Updated
Blue Coat Systems Affected 10 Apr 2015 28 May 2015
If you are a vendor and your product is affected, let us know.
CVSS Metrics (Learn More)
Group Score Vector
Base 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P
Temporal 5.3 E:POC/RL:OF/RC:C
Environmental 4.0 CDP:N/TD:M/CR:ND/IR:ND/AR:ND
References
https://bto.bluecoat.com/news/ssl-visibility-v3.8.4-released
https://bto.bluecoat.com/security-advisory/sa96
http://cwe.mitre.org/data/definitions/352.html
http://cwe.mitre.org/data/definitions/384.html
http://cwe.mitre.org/data/definitions/20.html
https://cwe.mitre.org/data/definitions/200.html
https://cwe.mitre.org/data/definitions/79.html
Credit
Thanks to Tim MalcomVetter of FishNet Security for reporting this
vulnerability.
This document was written by Joel Land.
Other Information
CVE IDs: CVE-2015-2852 CVE-2015-2853 CVE-2015-2854 CVE-2015-2855
Date Public: 29 May 2015
Date First Published: 29 May 2015
Date Last Updated: 29 May 2015
Document Revision: 11
Feedback
If you have feedback, comments, or additional information about this
vulnerability, please send us email.
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