CVE-2020-3117 Cisco Web Security Appliance and Cisco Content Security Management Appliance HTTP Header Injection Vulnerability
Unauthenticated attackers can inject arbitrary HTTP headers into responses via crafted URLs, potentially bypassing security controls on Cisco WSAs and SMAs.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-3117?
CVE-2020-3117 is a medium-severity vulnerability in Cisco Web Security Appliance, published on 23 Sep 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability in the API Framework of Cisco AsyncOS for Cisco Web Security Appliance (WSA) and Cisco Content Security Management Appliance (SMA) could allow an unauthenticated, remote attacker to inject crafted HTTP headers in the web server's response. The vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user to access a crafted URL and receive a malicious HTTP response. A successful exploit could allow the attacker to inject arbitrary HTTP headers into valid HTTP responses sent to a user's browser.
Weakness: CWE-113
Which versions are affected by CVE-2020-3117?
It affects 2 products.
Products include Cisco Content Security Management Appliance, Cisco Web Security Appliance.
How do I fix CVE-2020-3117?
No fix has been published for CVE-2020-3117 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-3117 being exploited?
There is no known exploitation of CVE-2020-3117 in the wild and no public exploit code.
Other vulnerabilities in Cisco Web Security Appliance
Sources
Also known as GHSA-mg6c-ww2w-mv2h.