VulnerabilityModified
CVE-2013-6920
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.
HIGH 10.0EPSS 3.23%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.23%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 2.0
- 10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 3.23% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- siemens/sinamics s\/g family firmware · siemens/sinamics g110 · siemens/sinamics g110d · siemens/sinamics g120 · siemens/sinamics g120c · siemens/sinamics g120d · siemens/sinamics g120p · siemens/sinamics g130 · siemens/sinamics g150 · siemens/sinamics g180 · siemens/sinamics s110 · siemens/sinamics s120 · siemens/sinamics s120cm · siemens/sinamics s150
- Source
- cve@mitre.org
References
- http://ics-cert.us-cert.gov/advisories/ICSA-13-338-01US Government Resource
- http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-742938.pdfVendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-742938.pdf
- http://ics-cert.us-cert.gov/advisories/ICSA-13-338-01US Government Resource
- http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-742938.pdfVendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-742938.pdf
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.