K000133522 : Apache mod_proxy_wstunnel vulnerability CVE-2019-17567

Security Advisory Description

Apache HTTP Server versions 2.4.6 to 2.4.46 mod_proxy_wstunnel configured on an URL that is not necessarily Upgraded by the origin server was tunneling the whole connection regardless, thus allowing for subsequent requests on the same connection to pass through with no HTTP validation, authentication or authorization possibly configured. (CVE-2019-17567)

Impact

An authenticated attacker may be able to exploit this vulnerability to disclose sensitive information, modify data, or cause a denial-of-service (DoS).