Arbitrary file upload in Siemens Comos
CVE-2021-37194
A vulnerability has been identified in COMOS V10.2 (All versions only if web components are used), COMOS V10.3 (All versions < V10.3.3.3 only if web components are used), COMOS V10.4 (All versions < V10.4.1 only if web components are used). The COMOS Web component of COMOS allows to upload and store arbitrary files at the webserver. This could allow an attacker to store malicious files.
Vulnerability class: Unrestricted File Upload
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:H/A:N.
EPSS exploit prediction
EPSS: 0.008 (56.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Siemens Comos — versions 10.2
- Siemens Comos V10.2 — versions All versions only if web components are used
- Siemens Comos V10.3 — versions All versions < V10.3.3.3 only if web components are used
- Siemens Comos V10.4 — versions All versions < V10.4.1 only if web components are used
Weakness classification (CWE)
References
- cert-portal.siemens.com/productcert/pdf/ssa-995338.pdf (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-37194?
- CVE-2021-37194 is a high-severity vulnerability in Siemens Comos, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.5/10. Published 2022-02-09.
- How severe is CVE-2021-37194?
- High severity. CVSS v3 base score is 7.5 out of 10.