Vulnerability CVE-2020-25238


Published: 2021-02-09

Description:
A vulnerability has been identified in PCS neo (Administration Console) (V3.0), TIA Portal (V15, V15.1 and V16). Manipulating certain files in specific folders could allow a local attacker to execute code with SYSTEM privileges. The security vulnerability could be exploited by an attacker with a valid account and limited access rights on the system.

Type:

CWE-284

(Improper Access Control)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Siemens -> Simatic process control system neo 
Siemens -> Totally integrated automation portal 

 References:
https://cert-portal.siemens.com/productcert/pdf/ssa-428051.pdf
https://us-cert.cisa.gov/ics/advisories/icsa-21-040-05
https://www.kb.cert.org/vuls/id/466044

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