Vulnerability CVE-2017-14023
Published: 2017-11-06   Modified: 2017-11-07

Description:
An Improper Input Validation issue was discovered in Siemens SIMATIC PCS 7 V8.1 prior to V8.1 SP1 with WinCC V7.3 Upd 13, and V8.2 all versions. The improper input validation vulnerability has been identified, which may allow an authenticated remote attacker who is a member of the administrators group to crash services by sending specially crafted messages to the DCOM interface.

Type:

CWE-20

 (Improper Input Validation)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
4/10
2.9/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Siemens -> Simatic pcs7 
Siemens -> Simatic wincc 

 References:
http://www.securityfocus.com/bid/101680
http://www.securitytracker.com/id/1039729
https://ics-cert.us-cert.gov/advisories/ICSA-17-306-01
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