Vulnerability CVE-2016-8673
Published: 2016-11-23

Description:
Cross-site request forgery (CSRF) vulnerability in the integrated web server on Siemens SIMATIC CP 343-1 Advanced prior to version 3.0.53, SIMATIC CP 443-1 Advanced prior to version 3.2.17, SIMATIC S7-300 CPU, and SIMATIC S7-400 CPU devices allows remote attackers to hijack the authentication of arbitrary users.

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Siemens -> Simatic cp 343-1 firmware 
Siemens -> Simatic cp 443-1 firmware 
Siemens -> Simatic s7 300 cpu firmware 
Siemens -> Simatic s7 400 cpu firmware 

 References:
http://www.securityfocus.com/bid/94460
http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-603476.pdf
https://ics-cert.us-cert.gov/advisories/ICSA-16-327-02
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