Auth bypass in Otris Update Manager
CVE-2021-40376
otris Update Manager 1.2.1.0 allows local users to achieve SYSTEM access via unauthenticated calls to exposed interfaces over a .NET named pipe. A remote attack may be possible as well, by leveraging WsHTTPBinding for HTTP traffic on TCP port 9000.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (32.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Otris Update Manager — versions 1.2.1.0
Weakness classification (CWE)
References
- www.otris.com (Vendor Advisory)
- www.tuv.com/landingpage/en/vulnerability-disclosure/ (Third Party Advisory)
- www.tuv.com/content-media-files/master-content/global-landingpages/images/vulne… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-40376?
- CVE-2021-40376 is a high-severity vulnerability in Otris Update Manager, classified under Improper Authentication. CVSS score: 7.8/10. Published 2022-03-10.
- How severe is CVE-2021-40376?
- High severity. CVSS v3 base score is 7.8 out of 10.