CVE-2022-28836 Explained : Impact and Mitigation

Adobe InCopy Font Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

Understanding CVE-2022-28836

This CVE refers to an out-of-bounds write vulnerability in Adobe InCopy versions 17.1 and earlier, as well as version 16.4.1 and earlier. The vulnerability could lead to arbitrary code execution within the context of the current user.

What is CVE-2022-28836?

Adobe InCopy versions 17.1 and earlier, as well as version 16.4.1 and earlier, are affected by an out-of-bounds write vulnerability. Exploiting this issue requires user interaction, specifically the victim opening a malicious file.

The Impact of CVE-2022-28836

The impact of this vulnerability is rated as high, with a CVSS v3.1 base score of 7.8. It has a high severity level with confidentiality, integrity, and availability impact all rated as high. The exploit code maturity is not defined and user interaction is required for successful exploitation.

Technical Details of CVE-2022-28836

Vulnerability Description

The vulnerability in Adobe InCopy allows for out-of-bounds write, potentially leading to remote code execution. This means that an attacker could execute arbitrary code within the current user's context.

Affected Systems and Versions

Adobe InCopy versions 17.1 and earlier, as well as version 16.4.1 and earlier, are known to be affected by this vulnerability.

Exploitation Mechanism

To exploit this vulnerability, the attacker needs to craft a malicious file and convince the victim to open it. Once the file is opened, the attacker's code can be executed within the user's context.

Mitigation and Prevention

Immediate Steps to Take

To mitigate the risk associated with CVE-2022-28836, users should update Adobe InCopy to a non-vulnerable version. Additionally, exercise caution when opening files from untrusted sources to prevent exploitation.

Long-Term Security Practices

Implementing security best practices such as regular software updates, security monitoring, and user awareness training can help in preventing similar vulnerabilities in the future.

Patching and Updates

Adobe has released a security advisory addressing this vulnerability. Users are advised to refer to the Adobe security bulletin for guidance on patching and updating Adobe InCopy.