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CRITICAL · CVSS 10 CISA Known Exploited Vulnerability

CVE-2022-22536

SAP Multiple Products HTTP Request Smuggling Vulnerability

SAP Multiple Products

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.

CVSS
10
CRITICAL
EPSS
97.9%
30-day exploitation
Ransomware groups
0
recorded exploiting
Published
9 Feb 2022
CWE-444

Exploitation status

CISA Known Exploited Vulnerabilities

Listed by CISA on 18 August 2022. US federal agencies were required to remediate it by 8 September 2022.

EPSS — exploitation probability

FIRST puts the probability of exploitation activity in the next 30 days at 97.9%, which is higher than 99.9% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Frequently asked questions

Is CVE-2022-22536 being exploited by ransomware groups?

No ransomware group in this database is currently recorded as exploiting CVE-2022-22536.

What does CVE-2022-22536 affect?

CVE-2022-22536 affects SAP Multiple Products. 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.

How severe is CVE-2022-22536?

CVE-2022-22536 is rated CRITICAL with a CVSS base score of 10. EPSS puts the probability of exploitation in the next 30 days at 97.9%, higher than 99.9% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 8 September 2022.

How should organisations respond to CVE-2022-22536?

Apply the vendor patch for SAP Multiple Products as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.