Privilege escalation in Siemens Simatic Wincc Open Architecture
CVE-2018-13799
A vulnerability has been identified in SIMATIC WinCC OA V3.14 and prior (All versions < V3.14-P021). Improper access control to a data point of the affected product could allow an unauthenticated remote user to escalate its privileges in the context of SIMATIC WinCC OA V3.14. This vulnerability could be exploited by an attacker with network access to port 5678/TCP of the SIMATIC WinCC OA V3.14 server. Successful exploitation requires no user privileges and no user interaction. This vulnerability could allow an attacker to compromise integrity and availability of the SIMATIC WinCC OA system. At the time of advisory publication no public exploitation of this vulnerability was known.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.023 (82.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000
Affected products
- Siemens Simatic Wincc Open Architecture
- Siemens Ag Simatic Wincc Oa V3.14 And Prior — versions SIMATIC WinCC OA V3.14 and prior : All versions < V3.14-P021
Weakness classification (CWE)
References
- www.securityfocus.com/bid/105332 (VDB Entry, Third Party Advisory, vdb-entry)
- cert-portal.siemens.com/productcert/pdf/ssa-346256.pdf (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-13799?
- CVE-2018-13799 is a critical-severity vulnerability in Siemens Simatic Wincc Open Architecture, classified under Improper Privilege Management. CVSS score: 9.1/10. Published 2018-09-12.
- How severe is CVE-2018-13799?
- Critical severity. CVSS v3 base score is 9.1 out of 10.