Vulnerability in SAP Netweaver Application Server Java
CVE-2021-33670
SAP NetWeaver AS for Java (Http Service Monitoring Filter), versions - 7.10, 7.11, 7.20, 7.30, 7.31, 7.40, 7.50, allows an attacker to send multiple HTTP requests with different method types thereby crashing the filter and making the HTTP server unavailable to other legitimate users leading to denial of service vulnerability.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.032 (87.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 87.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.032 · newest: 0.032 · change: 0.000
Affected products
- SAP Netweaver Application Server Java — versions 7.10, 7.11, 7.20
- SAP Se Netweaver As For Java (HTTP Service) — versions < 7.10, < 7.11, < 7.20
Public proof-of-concept exploits
References
- wiki.scn.sap.com/wiki/pages/viewpage.action (Vendor Advisory)
- launchpad.support.sap.com/ (Permissions Required)
- seclists.org/fulldisclosure/2022/May/4 (mailing-list, Patch, Mailing List, Third Party Advisory)
- packetstormsecurity.com/files/166965/SAP-NetWeaver-Java-Denial-Of-Service.html (Patch, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-33670?
- CVE-2021-33670 is a high-severity vulnerability in SAP Netweaver Application Server Java. CVSS score: 7.5/10. Published 2021-07-14.
- How severe is CVE-2021-33670?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-33670 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.