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Exploited vulnerability · CISA KEV

Is CVE-2022-22536 exploited? Yes: in CISA KEV since 18 Aug 2022

Gociux · SAP Multiple Products · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2022-22536, SAP Multiple Products HTTP Request Smuggling Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 18 Aug 2022, 190 days after it was published. It affects SAP Multiple Products. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 18 Aug 2022
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity9.8CVSS 3.1 · critical
US federal due8 Sep 2022BOD 22-01 deadline

What it is

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.

VendorSAP (14 exploited CVEs in KEV)
ProductMultiple Products
VulnerabilitySAP Multiple Products HTTP Request Smuggling Vulnerability
WeaknessCWE-444
Published9 Feb 2022
Added to KEV18 Aug 2022
Reported by (CNA)sap

What to do

  1. Check whether you run it. Look for Multiple Products in your asset inventory, including appliances and cloud images. Stack check lists every exploited SAP CVE at once.
  2. Apply the fix. Apply updates per vendor instructions.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 9 Feb 2022.
  4. Get told next time. Email alerts when CISA adds a CVE for SAP.

References

Questions

Is CVE-2022-22536 being exploited?

Yes. CISA added CVE-2022-22536 to the Known Exploited Vulnerabilities catalog on 18 Aug 2022, which means there is reliable evidence of exploitation in the wild.

Is CVE-2022-22536 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2022-22536?

Apply updates per vendor instructions. Check SAP's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Multiple Products and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in August 2022 · SAP scorecard · act-now radar.

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