HTTP Request Smuggling | Breaking Cybersecurity News | The Hacker News

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday moved to add a  critical SAP security flaw  to its  Known Exploited Vulnerabilities Catalog , based on evidence of active exploitation. The issue in question is  CVE-2022-22536 , which has received the highest possible risk score of 10.0 on the CVSS vulnerability scoring system and was addressed by SAP as part of its Patch Tuesday updates for February 2022. Described as an HTTP request smuggling vulnerability, the shortcoming impacts the following product versions - SAP Web Dispatcher (Versions - 7.49, 7.53, 7.77, 7.81, 7.85, 7.22EXT, 7.86, 7.87) SAP Content Server (Version - 7.53) SAP NetWeaver and ABAP Platform (Versions - KERNEL 7.22, 8.04, 7.49, 7.53, 7.77, 7.81, 7.85, 7.86, 7.87, KRNL64UC 8.04, 7.22, 7.22EXT, 7.49, 7.53, KRNL64NUC 7.22, 7.22EXT, 7.49) "An unauthenticated attacker can prepend a victim's request with arbitrary data, allowing for function execution impersonating the victim

A new research has identified four new variants of HTTP request smuggling attacks that work against various commercial off-the-shelf web servers and HTTP proxy servers. Amit Klein, VP of Security Research at SafeBreach who presented the findings today at the Black Hat security conference, said that the attacks highlight how web servers and HTTP proxy servers are still susceptible to HTTP request smuggling even after 15 years since they were first documented. What is HTTP Request Smuggling? HTTP request smuggling (or HTTP Desyncing) is a technique employed to interfere with the way a website processes sequences of HTTP requests that are received from one or more users. Vulnerabilities related to HTTP request smuggling typically arise when the front-end (a load balancer or proxy) and the back-end servers interpret the boundary of an HTTP request differently, thereby allowing a bad actor to send (or "smuggle") an ambiguous request that gets prepended to the next le