Information disclosure in Siemens Simatic Wincc Oa Operator
CVE-2018-4847
A vulnerability has been identified in SIMATIC WinCC OA Operator iOS App (All versions < V1.4). Insufficient protection of sensitive information (e.g. session key for accessing server) in Siemens WinCC OA Operator iOS app could allow an attacker with physical access to the mobile device to read unencrypted data from the app's directory. Siemens provides mitigations to resolve the security issue.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (16.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 16.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Siemens Simatic Wincc Oa Operator
- Siemens Ag Simatic Wincc Oa Operator iOS App — versions All versions < V1.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/103941 (VDB Entry, Third Party Advisory, vdb-entry)
- cert-portal.siemens.com/productcert/pdf/ssa-597741.pdf (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-4847?
- CVE-2018-4847 is a medium-severity vulnerability in Siemens Simatic Wincc Oa Operator, classified under Insertion of Sensitive Information into Externally-Accessible File or Directory. CVSS score: 4.6/10. Published 2018-04-23.
- How severe is CVE-2018-4847?
- Medium severity. CVSS v3 base score is 4.6 out of 10.
- Is CVE-2018-4847 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.