CVE-2025-53104

Comprehensive Technical Analysis of CVE-2025-53104

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2025-53104 CVSS Score: 9.1

The vulnerability in question is a command injection flaw in the discussion-to-slack.yml GitHub Actions workflow within the gluestack-ui library. This vulnerability allows an attacker to execute arbitrary shell commands on the Actions runner by crafting malicious input in GitHub Discussion fields such as the title or body. The severity of this vulnerability is rated as critical (CVSS Score: 9.1) due to the potential for remote code execution (RCE), which can lead to significant security breaches.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Malicious Input Injection: An attacker can inject malicious commands into the GitHub Discussion title or body. For example, using a command like $(curl ...) can trigger a shell command execution.
• Supply Chain Attack: If an attacker can manipulate the discussion fields in a repository that uses the vulnerable workflow, they can execute arbitrary commands on the Actions runner.

Exploitation Methods:

• Direct Command Injection: By embedding shell commands within the discussion fields, an attacker can execute these commands on the runner.
• Chaining Exploits: An attacker could chain this vulnerability with other exploits to gain deeper access into the system or network.

3. Affected Systems and Software Versions

Affected Systems:

• Any GitHub repository using the gluestack-ui library prior to commit e6b4271.
• Any forks or derivatives of the gluestack-ui repository that still include the discussion-to-slack.yml workflow.

Software Versions:

• All versions of gluestack-ui prior to the fix in commit e6b4271.

4. Recommended Mitigation Strategies

Immediate Actions:

• Remove Vulnerable Workflow: Users should immediately remove the discussion-to-slack.yml workflow from their repositories if they are using a fork or derivative of gluestack-ui.
• Update to Fixed Version: Ensure that the repository is updated to include the fix from commit e6b4271.

Long-Term Strategies:

• Input Sanitization: Implement robust input sanitization and validation mechanisms to prevent command injection.
• Least Privilege Principle: Ensure that GitHub Actions runners operate with the least privilege necessary to minimize the impact of potential exploits.
• Regular Audits: Conduct regular security audits and code reviews to identify and mitigate similar vulnerabilities.

5. Impact on Cybersecurity Landscape

The discovery and exploitation of this vulnerability highlight the importance of securing CI/CD pipelines and automated workflows. Command injection vulnerabilities in CI/CD systems can have severe consequences, including unauthorized access, data breaches, and system compromises. This incident underscores the need for:

• Enhanced Security Practices: Organizations must adopt stringent security practices for CI/CD pipelines, including regular updates and patches.
• Supply Chain Security: Ensuring the security of third-party libraries and dependencies is crucial to maintaining a secure software supply chain.

6. Technical Details for Security Professionals

Vulnerability Details:

• Root Cause: The vulnerability arises from the direct interpolation of untrusted discussion fields into shell commands within the run: block of the discussion-to-slack.yml workflow.
• Fix: The issue was resolved by removing the vulnerable workflow in commit e6b4271.

Detection and Monitoring:

• Log Analysis: Monitor GitHub Actions logs for any unusual command executions or anomalies.
• Intrusion Detection Systems (IDS): Implement IDS to detect and alert on suspicious activities within the CI/CD pipeline.

Incident Response:

• Containment: Immediately remove the vulnerable workflow and update to the fixed version.
• Forensic Analysis: Conduct a thorough forensic analysis to determine the extent of the compromise and identify any additional vulnerabilities.
• Remediation: Apply patches and updates, and implement additional security measures to prevent future incidents.

Conclusion: CVE-2025-53104 is a critical command injection vulnerability that underscores the importance of securing CI/CD pipelines and automated workflows. Organizations must take immediate action to mitigate this vulnerability and adopt robust security practices to protect against similar threats in the future.