Vulnerability Note VU#498348
Blue Coat SSL Visibility Appliance contains multiple vulnerabilities
Original Release date: 29 May 2015 | Last revised: 02 Jun 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. For more information about these issues, see FishNet Security’s write-up.

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)

VendorStatusDate NotifiedDate UpdatedBlue Coat SystemsAffected10 Apr 201528 May 2015If 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
https://fishnetsecurity.com/6labs/blog/vulnerabilities-bluecoat-ssl-visibility-appliances
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:
02 Jun 2015

Document Revision:
13

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