Medium severity · published Nov 6, 2017
CVE-2017-14023
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
4.9
CVSS
3.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.7% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SP
Simatic Pcs7 · Siemens
8.1; 8.2 · source: NVD
SW
Simatic Wincc · Siemens
7.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-14023
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-14023
Third Party Advisory
http://www.securityfocus.com/bid/101680
Third Party Advisory
http://www.securitytracker.com/id/1039729
Third Party Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-17-306-01
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