CVE-2022-36969 : Exploit Details and Defense Strategies

This article provides detailed information about CVE-2022-36969, a vulnerability that allows remote attackers to disclose sensitive information in AVEVA Edge 2020 SP2 Patch 0(4201.2111.1802.0000) systems.

Understanding CVE-2022-36969

CVE-2022-36969 is a security vulnerability in AVEVA Edge 2020 SP2 Patch 0(4201.2111.1802.0000) that can be exploited by remote attackers to access sensitive information.

What is CVE-2022-36969?

CVE-2022-36969 is a vulnerability in the LoadImportedLibraries method of AVEVA Edge 2020 SP2 Patch 0(4201.2111.1802.0000). It arises due to improper restriction of XML External Entity (XXE) references, allowing attackers to craft documents to disclose information.

The Impact of CVE-2022-36969

The vulnerability allows attackers to embed malicious content into XML documents, potentially leading to the disclosure of sensitive information within the current process.

Technical Details of CVE-2022-36969

CVE-2022-36969 has a CVSS v3.0 base score of 5.5, categorizing it as a medium-severity vulnerability. The attack vector is local, requiring user interaction for exploitation.

Vulnerability Description

The flaw in the LoadImportedLibraries method allows attackers to execute XXE attacks by embedding malicious content in crafted documents.

Affected Systems and Versions

AVEVA Edge 2020 SP2 Patch 0(4201.2111.1802.0000) is affected by this vulnerability.

Exploitation Mechanism

Remote attackers can exploit this vulnerability by tricking users into visiting a malicious webpage or opening a malicious file containing a crafted document.

Mitigation and Prevention

Implement immediate steps to mitigate the risk posed by CVE-2022-36969 in AVEVA Edge 2020 SP2 Patch 0(4201.2111.1802.0000) installations.

Immediate Steps to Take

Users should exercise caution when interacting with untrusted sources online and avoid opening suspicious files or visiting unknown URLs.

Long-Term Security Practices

Regularly update AVEVA Edge software to patch known vulnerabilities and enhance overall system security.

Patching and Updates

Apply security patches provided by AVEVA to address CVE-2022-36969 and other potential vulnerabilities in the software.