CVE-2021-42730 : What You Need to Know
Learn about CVE-2021-42730 affecting Adobe Bridge version 11.1.1 and earlier. Explore the impact, technical details, and mitigation steps for this memory corruption vulnerability.
Adobe Bridge version 11.1.1 (and earlier) is affected by a memory corruption vulnerability due to insecure handling of a malicious PSD file, potentially resulting in arbitrary code execution in the context of the current user. User interaction is required to exploit this vulnerability.
Understanding CVE-2021-42730
What is CVE-2021-42730?
Adobe Bridge version 11.1.1 (and earlier) is susceptible to a memory corruption vulnerability that allows attackers to execute arbitrary code through a malicious PSD file.
The Impact of CVE-2021-42730
The vulnerability has a CVSS base score of 7.8 (High severity) with a requirement of user interaction. Its impacts include high availability, confidentiality, and integrity vulnerabilities.
Technical Details of CVE-2021-42730
Vulnerability Description
- CVE ID: CVE-2021-42730
- CWE ID: CWE-788 (Access of Memory Location After End of Buffer)
- Attack Vector: Local
- Privileges Required: None
- Scope: Unchanged
- Attack Complexity: Low
- User Interaction: Required
Affected Systems and Versions
- Affected Product: Adobe Bridge
- Vendor: Adobe
- Versions Affected: 11.1.1 and earlier
Exploitation Mechanism
The vulnerability occurs due to a memory corruption issue in the processing of PSD files, allowing attackers to trigger arbitrary code execution by manipulating specific file elements.
Mitigation and Prevention
Immediate Steps to Take
- Update Adobe Bridge to the latest version that contains a patch to address the vulnerability.
- Avoid opening PSD files from untrusted sources or emails.
- Implement security awareness training on phishing and malicious file handling.
Long-Term Security Practices
- Regularly update software and apply security patches promptly.
- Utilize security tools like antivirus and intrusion detection systems to detect and prevent similar attacks.
- Employ the principle of least privilege to limit the impact of potential breaches.
Patching and Updates
Apply the security patch provided by Adobe to fix the memory corruption vulnerability in Adobe Bridge.