Information disclosure in Siemens SIMATIC STEP 7 (TIA Portal)

1) Information disclosure

EUVDB-ID: #VU15894

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-13811

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows a local unauthenticated attacker to obtain potentially sensitive information.

The vulnerability exists due to insufficient computational effort in password hashes. A remote attacker can gain access to a project file and reconstruct passwords.

Mitigation

Update to version 15.1.

Vulnerable software versions

SIMATIC STEP 7 (TIA Portal): All versions

CPE2.3

• cpe:2.3:a:siemens:simatic_step_7_tia_portal:*:*:*:*:*:*:*:*

External links

https://ics-cert.us-cert.gov/advisories/ICSA-18-317-06

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.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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