Siemens AG CWE-614

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 does not set the secure flag for unspecified cookies in an https session, which makes it easier for remote attackers to capture these cookies by intercepting their transmission within an http session.

A vulnerability has been identified in SIMATIC CP 343-1 Advanced (incl. SIPLUS NET variant) (All versions < V3.0.53), SIMATIC CP 443-1 Advanced (incl. SIPLUS NET variant) (All versions < V3.2.17), SIMATIC S7-300 PN/DP CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-400 PN/DP CPU family (incl. SIPLUS variants) (All versions). The integrated web server delivers cookies without the "secure" flag. Modern browsers interpreting the flag would mitigate potential data leakage in case of clear text transmission.

http://www.securityfocus.com/bid/94460 [Third Party Advisory, VDB Entry]

http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-603476.pdf [Vendor Advisory]

https://ics-cert.us-cert.gov/advisories/ICSA-16-327-02 [No Types Assigned]