#VU66775 XML External Entity injection in AVEVA Edge - CVE-2022-36969

Vulnerability identifier: #VU66775

Vulnerability risk: High

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-36969

CWE-ID: CWE-611

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
AVEVA Edge
Server applications / SCADA systems

Vendor: AVEVA Software, LLC.

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to insufficient validation of user-supplied XML input within the LoadImportedLibraries method. A remote attacker can trick a victim to open a specially crafted file and view contents of arbitrary files on the system or perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

AVEVA Edge: 2020 R2 SP1

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External links
https://www.zerodayinitiative.com/advisories/ZDI-22-1128/
https://www.aveva.com/content/dam/aveva/documents/support/cyber-security-updates/SecurityBulletin_AVEVA-2022-005.pdf

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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.