CVE-2020-1945 : What You Need to Know

Apache Ant 1.1 to 1.9.14 and 1.10.0 to 1.10.7 uses the default temporary directory, exposing a vulnerability to leak sensitive information and allowing attackers to inject modified source files.

Understanding CVE-2020-1945

Apache Ant versions 1.1 to 1.9.14 and 1.10.0 to 1.10.7 are vulnerable to an insecure temporary file issue.

What is CVE-2020-1945?

CVE-2020-1945 is a security vulnerability in Apache Ant versions 1.1 to 1.9.14 and 1.10.0 to 1.10.7, allowing attackers to access sensitive information and inject modified files.

The Impact of CVE-2020-1945

The vulnerability could lead to the leakage of sensitive data and unauthorized modifications to source files within the build process in Apache Ant.

Technical Details of CVE-2020-1945

Apache Ant CVE-2020-1945 involves the following technical aspects:

Vulnerability Description

Apache Ant versions 1.1 to 1.9.14 and 1.10.0 to 1.10.7 utilize the default temporary directory, potentially exposing sensitive information.
The fixcrlf and replaceregexp tasks can copy files from the temporary directory back into the build tree, enabling attackers to inject altered source files.

Affected Systems and Versions

Product: Apache Ant
Versions: Apache Ant 1.1 to 1.9.14 and 1.10.0 to 1.10.7

Exploitation Mechanism

Attackers can exploit CVE-2020-1945 by manipulating the temporary directory to access and modify sensitive files within the build process.

Mitigation and Prevention

To safeguard against CVE-2020-1945, consider the following measures:

Immediate Steps to Take

Update Apache Ant to versions 1.10.8 or 1.9.15 to address the vulnerability.
Avoid using default temporary directories for sensitive operations.

Long-Term Security Practices

Regularly monitor and update software components to maintain security.
Implement secure coding practices to prevent similar vulnerabilities.

Patching and Updates

Stay informed of security advisories and promptly apply patches or updates to mitigate vulnerabilities.