Vulnerability identifier: #VU28934

Vulnerability risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7585

CWE-ID: CWE-427

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
SIMATIC PCS 7
Server applications / SCADA systems
SIMATIC PDM
Server applications / SCADA systems
SIMATIC STEP 7
Server applications / SCADA systems
SINAMICS STARTER
Other software / Other software solutions

Vendor: Siemens

Description

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to the application loads DLL libraries in an insecure manner. A local user can use a specially crafted .dll file, trick the victim into opening a file, associated with the vulnerable application, and execute arbitrary code on victim's system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SIMATIC PCS 7: All versions

SIMATIC PDM: All versions

SIMATIC STEP 7: All versions

SINAMICS STARTER: All versions

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External links
http://ics-cert.us-cert.gov/advisories/icsa-20-161-05
http://cert-portal.siemens.com/productcert/pdf/ssa-689942.pdf

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.