CVE-2016-6469 Denial of service in Cisco Web Security Appliance (WSA)
An unauthenticated remote attacker can cause a denial of service by triggering a proxy process restart via malformed HTTP URLs in Cisco WSA.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2016-6469?
CVE-2016-6469 is a high-severity denial of service vulnerability in Cisco Web Security Appliance, published on 14 Dec 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in HTTP URL parsing of Cisco AsyncOS for Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) vulnerability due to the proxy process unexpectedly restarting. More Information: CSCvb04312. Known Affected Releases: 9.0.1-162 9.1.1-074. Known Fixed Releases: 10.1.0-129 9.1.2-010.
Weakness: CWE-399
Which versions are affected by CVE-2016-6469?
It affects 1 product.
Products include Cisco Web Security Appliance.
How do I fix CVE-2016-6469?
No fix has been published for CVE-2016-6469 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2016-6469 being exploited?
There is no known exploitation of CVE-2016-6469 in the wild and no public exploit code.
Other vulnerabilities in Cisco Web Security Appliance
Sources
Also known as GHSA-jrr4-mgvr-2jhm.