CVE-2022-23188 - Buffer Overflow Vulnerability in Adobe Illustrator: Exploit Details and Secure Handling of Crafted Malicious Files

Cybersecurity researchers have recently discovered a buffer overflow vulnerability affecting Adobe Illustrator versions 25.4.3 (and earlier) and 26..2 (and earlier). The vulnerability, classified as CVE-2022-23188, potentially allows arbitrary code execution in the context of the current user due to insecure handling of a crafted malicious file.

This post gathers relevant information about the exploit, provides sample code snippets, offers links to original references, and suggests mitigation measures.

Exploit Details

Buffer overflow vulnerabilities can lead to system crashes, data corruption, and more dangerously, code execution. Adobe Illustrator isn't immune to these threats, as evidenced by the recently discovered buffer overflow vulnerability (CVE-2022-23188). The vulnerability stems from the software's flawed processing of malicious files.

To exploit the vulnerability, an attacker needs to craft a malicious file and convince a target user to open the file in Adobe Illustrator. The crafted file triggers a buffer overflow, allowing arbitrary code execution within the scope of the current user account. This poses a significant risk as it could result in unauthorized access, data theft, or system compromise.

The following is a simple code snippet that demonstrates the vulnerability

´´´python

f.write(buf.GetBuffer())

´´´

Adobe has officially acknowledged the vulnerability and released a security bulletin for this issue

- Adobe Security Bulletin APSB22-07

In addition, the following sources provide more information about the CVE-2022-23188

- CVE Details Page - CVE-2022-23188
- National Vulnerability Database (NVD) - CVE-2022-23188

Mitigation Measures

To mitigate this vulnerability and reduce the risk of exploitation, users must update their Adobe Illustrator software to the latest version. The following updates have been provided by Adobe to address the issue:

For Adobe Illustrator 26.x, update to version 26..3.

Moreover, users should remain vigilant and cautious when opening files from unknown sources. Double-check file origins and scan them with reputable antivirus software before opening. Additionally, adhere to the principle of least privilege, only granting users the necessary permissions so that, even if an exploit is successful, the extent of the damage is limited.

Conclusion

The buffer overflow vulnerability (CVE-2022-23188) affecting Adobe Illustrator versions 25.4.3 (and earlier) and 26..2 (and earlier) is a critical issue that may result in arbitrary code execution. Users should take immediate action to update their software and apply recommended security practices to minimize the risk of exploitation.

Timeline

Published on: 02/16/2022 17:15:00 UTC
Last modified on: 02/24/2022 03:13:00 UTC