CVE-2022-22536 vulnerability in SAP Products
Published on February 9, 2022
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.
Known Exploited Vulnerability
This SAP Multiple Products HTTP Request Smuggling Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. SAP NetWeaver Application Server ABAP, SAP NetWeaver Application Server Java, ABAP Platform, SAP Content Server and SAP Web Dispatcher allow HTTP request smuggling. An unauthenticated attacker can prepend a victim's request with arbitrary data, allowing for function execution impersonating the victim or poisoning intermediary Web caches.
The following remediation steps are recommended / required by September 8, 2022: Apply updates per vendor instructions.
Vulnerability Analysis
CVE-2022-22536 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors in an automatable fashion. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a HTTP Request Smuggling Vulnerability?
When malformed or abnormal HTTP requests are interpreted by one or more entities in the data flow between the user and the web server, such as a proxy or firewall, they can be interpreted inconsistently, allowing the attacker to "smuggle" a request to one device without the other device being aware of it.
CVE-2022-22536 has been classified to as a HTTP Request Smuggling vulnerability or weakness.
Products Associated with CVE-2022-22536
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Affected Versions
SAP SE SAP NetWeaver and ABAP Platform:- Version KERNEL 7.22 is affected.
- Version 8.04 is affected.
- Version 7.49 is affected.
- Version 7.53 is affected.
- Version 7.77 is affected.
- Version 7.81 is affected.
- Version 7.85 is affected.
- Version 7.86 is affected.
- Version 7.87 is affected.
- Version KRNL64UC 8.04 is affected.
- Version 7.22 is affected.
- Version 7.22EXT is affected.
- Version KRNL64NUC 7.22 is affected.
- Version 7.49 is affected.
- Version 7.53 is affected.
- Version 7.77 is affected.
- Version 7.81 is affected.
- Version 7.85 is affected.
- Version 7.22EXT is affected.
- Version 7.86 is affected.
- Version 7.87 is affected.
- Version 7.53 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.