Auth bypass in Siemens Cerberus Dms
CVE-2022-33139
A vulnerability has been identified in Cerberus DMS (All versions), Desigo CC (All versions), Desigo CC Compact (All versions), SIMATIC WinCC OA V3.16 (All versions in default configuration), SIMATIC WinCC OA V3.17 (All versions in non-default configuration), SIMATIC WinCC OA V3.18 (All versions in non-default configuration). Affected applications use client-side only authentication, when neither server-side authentication (SSA) nor Kerberos authentication is enabled. In this configuration, attackers could impersonate other users or exploit the client-server protocol without being authenticated.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (68.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Siemens Cerberus Dms — versions All versions
- Siemens Cerberus Dms
- Siemens Desigo Cc — versions All versions
- Siemens Desigo Cc
- Siemens Desigo Cc Compact — versions All versions
- Siemens Desigo Cc Compact
- Siemens Simatic Wincc Oa V3.16 — versions All versions in default configuration
- Siemens Simatic Wincc Oa V3.17 — versions All versions in non-default configuration
- Siemens Simatic Wincc Oa V3.18 — versions All versions in non-default configuration
- Siemens Wincc Open Architecture — versions 3.16, 3.17, 3.18
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cert-portal.siemens.com/productcert/pdf/ssa-111512.pdf (Vendor Advisory)
- cert-portal.siemens.com/productcert/pdf/ssa-836027.pdf (Vendor Advisory)
Frequently asked questions
- What is CVE-2022-33139?
- CVE-2022-33139 is a critical-severity vulnerability in Siemens Cerberus Dms, classified under CWE-603. CVSS score: 9.8/10. Published 2022-06-21.
- How severe is CVE-2022-33139?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2022-33139 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.