CVE-2022-22536: SAP Multiple Products HTTP Request Smuggling Vulnerability

Vulnerability summary

CVE-2022-22536 is a critical (CVSS 10.0) HTTP Request/Response Smuggling vulnerability in SAP Multiple Products. It is known to be exploited: CISA lists it, first on 18-08-2022. EPSS estimates a 97.95% chance of exploitation in the next 30 days, higher than 99.9% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 09-02-2022
   PublishedVulnerability first disclosed.
2. 18-08-2022
   Added to CISA KEVSAP Multiple Products HTTP Request Smuggling Vulnerability
3. 08-09-2022
   CISA remediation dueApply updates per vendor instructions.
4. 21-10-2025
   Last modifiedVulnerability information updated.

Description

SAP NetWeaver Application Server ABAP, SAP NetWeaver Application Server Java, ABAP Platform, SAP Content Server 7.53 and SAP Web Dispatcher are vulnerable for request smuggling and request concatenation. An unauthenticated attacker can prepend a victim's request with arbitrary data. This way, the attacker can execute functions impersonating the victim or poison intermediary Web caches. A successful attack could result in complete compromise of Confidentiality, Integrity and Availability of the system.

• CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.