Vulnerability identifier: #VU47333
Vulnerability risk: Medium
Exploitation vector: Network
Exploit availability: Yes
The vulnerability allows a remote attacker to preform HTTP request smuggling attacks.
The vulnerability exists due to improper validation of HTTP requests. A remote attacker can send a specially crafted HTTP request to the server and smuggle arbitrary HTTP headers.
Successful exploitation of vulnerability may allow an attacker to poison HTTP cache and perform phishing attacks.
Install updates from vendor's website.
Vulnerable software versions
WEBrick: 1.4.0 - 1.6.0
Ruby: 2.5.0 - 2.7.1
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?