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AUSCERT External Security Bulletin Redistribution
ESB-2015.0425
Cisco Web Security Appliance HTTP Proxy Bypass Vulnerability
23 February 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Web Security Appliance
Operating System: Cisco
VMware ESX Server
Impact/Access: Unauthorised Access -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2014-6115
Original Bulletin:
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2015-0628
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Cisco Security Notice
Cisco Web Security Appliance HTTP Proxy Bypass Vulnerability
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2015-0628
CVE ID: CVE-2015-0628
Release Date: 2015 February 19 22:13 UTC (GMT)
Last Updated: 2015 February 20 15:57 UTC (GMT)
Summary
A vulnerability in the proxy engine of the Cisco Web Security Appliance (WSA)
could allow an unauthenticated, remote attacker to bypass the security
restriction.
The vulnerability is due to improper handling of malformed HTTP methods. An
attacker could exploit this vulnerability by crafting an improper HTTP method.
An exploit could allow the attacker to circumvent the WSA's ability to prevent
proxied network traffic.
Affected Products
Product More Information CVSS
Cisco Web Security Appliance (WSA) CSCus79174 5.0/4.8
What Is a Cisco Security Notice?
The Cisco Product Security Incident Response Team (PSIRT) publishes Cisco
Security Notices to inform customers of low- to mid-level severity security
issues involving Cisco products.
Customers who wish to upgrade to a software version that includes fixes for
these issues should contact their normal support channels. Free software
updates will not be provided for issues that are disclosed through a Cisco
Security Notice.
For additional information about Cisco PSIRT publications, see the Cisco
Security Vulnerability Policy at
http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html
Customers Using Third-Party Support Organizations
Customers may have Cisco products that are provided or maintained through
prior or existing agreements with third-party support organizations, such as
Cisco Partners, authorized resellers, or service providers. For these
products, customers should consult their service providers or support
organizations to ensure that any applied workaround or fix is the most
appropriate in the intended network before it is deployed.
Disclaimer
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF
GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS
LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO
CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
A stand-alone copy or paraphrase of the text of this document that omits the
distribution URL is an uncontrolled copy, and may lack important information
or contain factual errors.
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