CVE-2020-24434 : Exploit Details and Defense Strategies

Acrobat Pro DC Out-Of-Bounds Read Vulnerability Could Lead to Information Disclosure

Understanding CVE-2020-24434

Acrobat Reader DC versions 2020.012.20048 (and earlier), 2020.001.30005 (and earlier), and 2017.011.30175 (and earlier) are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory.

What is CVE-2020-24434?

The vulnerability in Acrobat Pro DC could allow an attacker to disclose sensitive memory by exploiting an out-of-bounds read issue. This could potentially bypass mitigations like ASLR, requiring user interaction to open a malicious file.

The Impact of CVE-2020-24434

CVSS Base Score: 3.3 (Low)
Attack Vector: Local
Attack Complexity: Low
User Interaction: Required
Confidentiality Impact: Low
Integrity Impact: None
Availability Impact: None

Technical Details of CVE-2020-24434

Acrobat Pro DC is affected by an out-of-bounds read vulnerability that could have the following implications:

Vulnerability Description

The vulnerability could lead to the disclosure of sensitive memory, potentially allowing an attacker to bypass certain mitigations.

Affected Systems and Versions

Product: Acrobat Reader
Vendor: Adobe
Affected Versions:
Acrobat Reader 2017.011.30175 and earlier
Acrobat Reader 2020.012.20048 and earlier
Acrobat Reader 2020.001.30005 and earlier
Acrobat Reader None

Exploitation Mechanism

Exploitation of this vulnerability requires user interaction, where a victim must open a malicious file to trigger the issue.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2020-24434.

Immediate Steps to Take

Update Acrobat Reader to the latest version.
Avoid opening files from untrusted sources.
Implement security best practices for file handling.

Long-Term Security Practices

Regularly update software and security patches.
Educate users on safe browsing habits and file handling procedures.

Patching and Updates

Ensure that all security patches and updates provided by Adobe for Acrobat Reader are promptly applied.