CVE-2009-1211: Medium severity bluecoat Proxysg Sg9000-5 vulnerability
Blue Coat ProxySG, when transparent interception mode is enabled, uses the HTTP Host header to determine the remote endpoint, which allows remote attackers to bypass access controls for Flash, Java, Silverlight, and probably other technologies, and possibly communicate with restricted intranet sites, via a crafted web page that causes a client to send HTTP requests with a modified Host header.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Configuration
Disable transparent interception mode on affected Blue Coat ProxySG devices (for example: SG210-5, SG210-10, SG510-5, SG510-10, SG510-20, SG810-5, SG810-20, SG810-25, SG9000-5, SG9000-10, SG9000-20) to prevent the appliance from using the client-supplied HTTP Host header to determine the remote endpoint.
Blue Coat ProxySG transparent interception mode = disabled
Event History
Frequently Asked Questions
What is the severity of CVE-2009-1211?
CVE-2009-1211 has a medium severity rating, mainly due to its potential for unauthorized access.
How do I fix CVE-2009-1211?
To fix CVE-2009-1211, you should disable transparent interception mode on affected Blue Coat ProxySG devices.
What versions of Blue Coat ProxySG are affected by CVE-2009-1211?
CVE-2009-1211 affects multiple versions, including ProxySG VA-5, VA-10, VA-15, VA-20, SG210, SG510, SG810, and SG9000 series devices.
What kind of attacks can exploit CVE-2009-1211?
CVE-2009-1211 can be exploited to bypass access controls for technologies like Flash, Java, and Silverlight.
Is CVE-2009-1211 still relevant today?
While CVE-2009-1211 was identified over a decade ago, it may still pose risks for organizations using outdated configurations of affected devices.