#VU47632 Out-of-bounds read in LAquis SCADA - CVE-2020-25188

Vulnerability identifier: #VU47632

Vulnerability risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-25188

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
LAquis SCADA
Server applications / SCADA systems

Vendor: Leão Consultoria e Desenvolvimento de Sistemas

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when processing LQS files. A remote attacker can create a specially crafted project file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

LAquis SCADA: before 4.3.1.870

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External links
https://ics-cert.us-cert.gov/advisories/icsa-20-287-02
https://www.zerodayinitiative.com/advisories/ZDI-20-1244/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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