Exposure of Sensitive Information to an Unauthorized Actor, Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability i...
Description
Exposure of Sensitive Information to an Unauthorized Actor, Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in Beyaz Bilgisayar Software Design Industry and Trade Ltd
Remediation
Apply vendor security updates immediately. Monitor for exploitation attempts and review access logs.
Executive Summary:
A critical command injection vulnerability, identified as CVE-2025-11148, has been discovered in all versions of the
check-branchespackage. An attacker can exploit this flaw by crafting a malicious git branch name, which, when processed by the tool, allows for the execution of arbitrary commands on the underlying system, potentially leading to a full system compromise.Vulnerability Details
CVE-ID: CVE-2025-11148
Affected Software: All versions of the package Multiple Products
Affected Versions: All versions are affected.
Vulnerability: The
check-branchescommand-line tool is vulnerable to command injection. The tool processes git branch names without proper input sanitization before using them in a shell command. An attacker can create a git branch with a name containing malicious shell metacharacters (e.g.,;,|,&&,$()). When thecheck-branchestool is executed locally or within an automated CI/CD pipeline, the malicious payload in the branch name is executed with the permissions of the user or service running the tool, leading to arbitrary code execution.Business Impact
This vulnerability is rated as critical severity with a CVSS score of 9.8. Successful exploitation could lead to a complete compromise of the system running the
check-branchestool, which is often a developer workstation or a critical CI/CD build server. The potential consequences include theft of source code, proprietary data, and sensitive credentials (API keys, passwords, SSH keys); injection of malicious code into the software supply chain; and using the compromised system as a pivot point to attack other internal network resources. This poses a severe risk of data breach, intellectual property loss, and significant operational disruption.Remediation Plan
Immediate Action: Immediately apply the security update provided by the vendor. All systems using the
check-branchespackage should be patched to the latest version to mitigate this vulnerability. After patching, it is crucial to monitor systems for any signs of exploitation and thoroughly review access logs and command history on potentially affected systems (e.g., CI/CD servers, developer machines).Proactive Monitoring: Implement enhanced monitoring on systems where the
check-branchestool is used. Security teams should look for suspicious process execution originating from the CI/CD pipeline or developer tools. Monitor shell logs (e.g.,bash_history,auditd, Sysmon) for unusual commands or patterns. Pay close attention to git branch names that contain shell metacharacters or command-like syntax within your version control system and CI/CD job logs.Compensating Controls: If immediate patching is not feasible, implement the following compensating controls:
check-branchestool in a sandboxed, isolated environment (e.g., a minimal container with restricted permissions and no network access).check-branchestool.Exploitation Status
Public Exploit Available: false
Analyst Notes: As of the publication date of September 30, 2025, there are no known public exploits or active exploitation campaigns targeting this vulnerability. However, due to the simplicity of exploiting command injection flaws and the critical CVSS score, it is highly probable that a proof-of-concept exploit will be developed and released by security researchers or threat actors in the near future. The vulnerability is not currently listed on CISA's Known Exploited Vulnerabilities (KEV) catalog.
Analyst Recommendation
Given the critical severity (CVSS 9.8) of this vulnerability and its potential for complete system compromise, immediate remediation is strongly recommended. Organizations must prioritize patching all systems utilizing the
check-branchespackage, with special attention given to CI/CD environments which are high-value targets for supply chain attacks. Although not currently listed in the CISA KEV catalog, the high impact and ease of exploitation make CVE-2025-11148 a top-priority vulnerability that should be addressed without delay to prevent potential compromise.