CVE-2013-6920
critical
CVSS v3
—
CVSS v2
10.0
VIR risk
10.0
Description
Siemens SINAMICS S/G controllers with firmware before 4.6.11 do not require authentication for FTP and TELNET sessions, which allows remote attackers to bypass intended access restrictions via TCP traffic to port (1) 21 or (2) 23.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: cve@mitre.org — http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-742938.pdf
References
- http://ics-cert.us-cert.gov/advisories/ICSA-13-338-01
- http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-742938.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-742938.pdf
- http://ics-cert.us-cert.gov/advisories/ICSA-13-338-01
- http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-742938.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-742938.pdf
CWEs
CWE-287
Verify integrity in audit chain (admin only). AS-IS.