Auth bypass in SAP Netweaver
CVE-2021-21481
The MigrationService, which is part of SAP NetWeaver versions 7.10, 7.11, 7.20, 7.30, 7.31, 7.40, 7.50, does not perform an authorization check. This might allow an unauthorized attacker to access configuration objects, including such that grant administrative privileges. This could result in complete compromise of system confidentiality, integrity, and availability.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (42.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000
Affected products
- SAP Netweaver — versions 7.10, 7.11, 7.20
- SAP Se Netweaver As Java (Migrationservice) — versions < 7.10, < 7.11, < 7.30
Weakness classification (CWE)
References
- launchpad.support.sap.com/ (Permissions Required, Vendor Advisory)
- wiki.scn.sap.com/wiki/pages/viewpage.action (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-21481?
- CVE-2021-21481 is a high-severity vulnerability in SAP Netweaver, classified under Incorrect Authorization. CVSS score: 8.8/10. Published 2021-03-09.
- How severe is CVE-2021-21481?
- High severity. CVSS v3 base score is 8.8 out of 10.