CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
EPSS
Percentile
74.7%
SIMATIC WinCC
Version: 7.2 and earlier
SIMATIC PCS7
Version: 8.0 and earlier
Link:
http://www.siemens.com/
Severity level: Medium
Impact: Privilege Gaining
Access Vector: Remote
CVSS v2:
Base Score: 6.8
Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P)
CVE: CVE-2014-4686
Siemens WinCC is a part of Siemens SIMATIC HMI software that aimed to provide connection between an operator and PLCs that manage technological processes.
The specialists of the Positive Research center have detected a Privilege Gaining vulnerability in SIMATIC WinCC.
A hard coded encryption key could allow privilege escalation in the WinCC Project administration application if its network communication on port 1030/tcp of a legitimate user can be captured.
Update your software up to the latest version
16.04.2014 - Vendor gets vulnerability details
23.07.2014 - Vendor releases fixed version and details
29.07.2014 - Public disclosure
The vulnerability was detected by Alexander Tlyapov and Sergey Gordeychik, Positive Research Center (Positive Technologies Company)
<http://en.securitylab.ru/lab/PT-2014-16>
<http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-214365.pdf>
Reports on the vulnerabilities previously discovered by Positive Research:
<http://www.ptsecurity.com/research/advisory/>
<http://en.securitylab.ru/lab/>