#VU14444 Insecure DLL loading in DeltaV - CVE-2018-14797

Vulnerability identifier: #VU14444

Vulnerability risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-14797

CWE-ID: CWE-427

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
DeltaV
Hardware solutions / Firmware

Vendor: Emerson

Description

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

The vulnerability exists due to insecure .dll loading mechanism when opening files. A local attacker can place a file along with specially crafted .dll file on a remote SBM or WebDAV share, trick the victim into opening it and execute arbitrary code on the target system with privileges of the current victim.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

DeltaV: 11.3.1 - 13.3.1

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External links
https://ics-cert.us-cert.gov/advisories/ICSA-18-228-01

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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.