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CVE-2013-6920

CVE-2013-6920

EPSS 3.2%
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.
Affected products
n/a · n/a

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References
http://ics-cert.us-cert.gov/advisories/ICSA-13-338-01https://cert-portal.siemens.com/productcert/pdf/ssa-742938.pdfhttp://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-742938.pdf