Auth bypass in Cybozu Remote Service Manager
CVE-2021-20803
Operation restriction bypass in the management screen of Cybozu Remote Service 3.1.8 to 3.1.9 allows a remote authenticated attacker to alter the data of the management screen.
Vulnerability class: Broken Access Control
EPSS: 0.007 (49.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.
Affected products
- Cybozu Remote_service_manager — versions 3.1.8, 3.1.9
- Cybozu, Inc. Cybozu Remote Service — versions 3.1.8 to 3.1.9
Weakness classification (CWE)
References
- vultures@jpcert.or.jp (Third Party Advisory, x_refsource_MISC)
- vultures@jpcert.or.jp (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-20803?
- CVE-2021-20803 is a medium-severity vulnerability in Cybozu Remote Service Manager, classified under Incorrect Authorization. CVSS score: 5.4/10. Published 2021-10-13.
- How severe is CVE-2021-20803?
- Medium severity. CVSS v3 base score is 5.4 out of 10.