Privilege escalation in LAquis SCADA

1) Improper check or handling of exceptional conditions

EUVDB-ID: #VU11612

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-5463

CWE-ID: CWE-703 - Improper Check or Handling of Exceptional Conditions

Exploit availability: No

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The weakness exists due to improper check or handling of exceptional conditions. A local attacker can trigger structured exception handler overflow and execute arbitrary code with root privileges.

Successful exploitation of the vulnerability may result in system compromise

Mitigation

Update to version 4.1.0.3774.

Vulnerable software versions

LAquis SCADA: 4.1.0.3391

External links

http://ics-cert.us-cert.gov/advisories/ICSA-18-095-03

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.