CVE-2021-28955 : What You Need to Know

This article provides an overview of CVE-2021-28955, a vulnerability found in git-bug before version 0.7.2. It discusses the impact, technical details, and mitigation strategies associated with this CVE.

Understanding CVE-2021-28955

CVE-2021-28955 is a vulnerability in git-bug that allows the execution of git.bat from the current directory in certain PATH situations, primarily affecting Windows systems.

What is CVE-2021-28955?

git-bug before 0.7.2 has an Uncontrolled Search Path Element, leading to the execution of git.bat from the current directory under specific PATH circumstances, commonly observed on Windows.

The Impact of CVE-2021-28955

The vulnerability can be exploited by attackers to execute arbitrary commands, compromising the integrity and security of the system running the affected version of git-bug.

Technical Details of CVE-2021-28955

The technical aspects of CVE-2021-28955 include details about the vulnerability, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability in git-bug before version 0.7.2 enables the execution of git.bat from the current directory in specific PATH scenarios.

Affected Systems and Versions

All versions of git-bug before 0.7.2 are affected by this vulnerability, particularly impacting Windows systems.

Exploitation Mechanism

Attackers can exploit this vulnerability to execute malicious commands by manipulating the PATH in a way that leads to the execution of git.bat from the current directory.

Mitigation and Prevention

To address CVE-2021-28955, immediate steps and long-term security practices are crucial to enhance protection against such vulnerabilities.

Immediate Steps to Take

Users are advised to update git-bug to version 0.7.2 or later to prevent exploitation of this vulnerability. Additional security measures like restricting PATH permissions can also be effective.

Long-Term Security Practices

Implementing secure coding practices, regular security assessments, and maintaining up-to-date software versions can help mitigate the risk of future vulnerabilities.

Patching and Updates

Regularly check for security updates for git-bug and apply patches promptly to ensure that known vulnerabilities are addressed and system security is maintained.