CVE-2019-9178 in Community
Summary
by MITRE
An issue was discovered in GitLab Community and Enterprise Edition before 11.6.10, 11.7.x before 11.7.6, and 11.8.x before 11.8.1. It allows Information Exposure (issue 4 of 5).
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Analysis
by VulDB Data Team • 08/29/2023
The vulnerability identified as CVE-2019-9178 represents a critical information exposure flaw affecting GitLab Community and Enterprise Edition installations across multiple version streams. This vulnerability specifically impacts systems running versions prior to 11.6.10, 11.7.6, and 11.8.1 respectively, creating a significant security risk for organizations relying on GitLab for their version control and collaboration infrastructure. The issue manifests as an information exposure vulnerability that falls under the broader category of data leakage through improper access controls or insufficient sanitization of sensitive information.
The technical nature of this vulnerability stems from inadequate handling of user permissions and access controls within GitLab's authentication and authorization mechanisms. When users interact with the system, particularly in scenarios involving project access, repository operations, or administrative functions, the system fails to properly validate and restrict information flow between different user roles. This flaw allows authenticated users to potentially access information that should be restricted to specific roles or groups, creating a pathway for unauthorized data exposure. The vulnerability operates at the application layer and specifically affects the way GitLab processes and serves information to users based on their access levels, making it particularly dangerous in environments where sensitive code repositories, project details, or administrative information are stored.
The operational impact of CVE-2019-9178 extends beyond simple data leakage, as it fundamentally compromises the security posture of GitLab installations. Organizations may experience unauthorized access to confidential source code, sensitive project metadata, or internal documentation that should remain restricted to authorized personnel only. This exposure can lead to intellectual property theft, competitive disadvantage, and potential compliance violations depending on the nature of the information accessed. The vulnerability's presence in multiple version streams means that a significant portion of GitLab deployments remained at risk, requiring immediate attention and patching across affected organizations. Security teams face the challenge of identifying all impacted systems and ensuring comprehensive remediation across their infrastructure.
Mitigation strategies for this vulnerability center on immediate patching and version upgrades to the affected GitLab releases, with the recommended approach being the deployment of versions 11.6.10, 11.7.6, or 11.8.1 respectively. Organizations should implement a comprehensive audit of their GitLab installations to identify all systems running vulnerable versions and prioritize patching based on risk assessment. Network segmentation and access control measures should be reinforced to limit exposure, while monitoring systems should be enhanced to detect potential exploitation attempts. The vulnerability aligns with CWE-200, which addresses "Information Exposure," and represents a clear violation of the principle of least privilege. From an ATT&CK framework perspective, this vulnerability maps to techniques involving privilege escalation and credential access, as it allows users to gain access to information beyond their intended permissions. Organizations should also conduct thorough security assessments to identify any potential data breaches that may have occurred during the period when systems were vulnerable to this information exposure flaw.