Vulnerability identifier: #VU24309

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-10934

CWE-ID: CWE-22

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
TIA Portal
Server applications / SCADA systems

Vendor: Siemens

Description

The vulnerability allows a local user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A local user can change the contents of a configuration file and execute arbitrary code with SYSTEM privileges.

The following versions of TIA Portal are affected:

• TIA Portal v14: All versions
• TIA Portal v15: All versions prior to v15.1 Upd 4
• TIA Portal v16: All versions

Mitigation
Install update from vendor's website.

Vulnerable software versions

TIA Portal: All versions

---

External links
http://ics-cert.us-cert.gov/advisories/icsa-20-014-05

---

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.