CVE-2024-22033 in Package Hub
Summary
by MITRE • 10/16/2024
The OBS service obs-service-download_url was vulnerable to a command injection vulnerability. The attacker could provide a configuration to the service that allowed to execute command in later steps
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Analysis
by VulDB Data Team • 10/16/2024
The CVE-2024-22033 vulnerability affects the OBS service obs-service-download_url which is part of the Open Build Service ecosystem used for automated software building and packaging. This service is designed to download files from remote URLs and integrate them into the build process, making it a critical component in software distribution workflows. The vulnerability stems from insufficient input validation and sanitization within the service configuration handling mechanism, creating a path for malicious actors to inject arbitrary commands that execute during subsequent processing steps. The flaw exists in how the service interprets and processes configuration parameters provided by users or external sources, particularly when these parameters contain special characters or command sequences that should be treated as data rather than executable code.
This command injection vulnerability operates at the application level and represents a critical security weakness that aligns with CWE-77 and CWE-94 categories, which specifically address command injection and code injection flaws. The vulnerability enables an attacker to execute arbitrary commands on the system where the OBS service is running, potentially leading to complete system compromise. The attack vector occurs when an attacker can influence the configuration parameters that control file download behavior, allowing them to inject malicious payloads that get executed during the download process or subsequent build steps. The service's lack of proper input sanitization means that command separators, shell metacharacters, and other injection points are not properly escaped or filtered, creating a direct pathway for privilege escalation and remote code execution.
The operational impact of CVE-2024-22033 extends beyond simple command execution, as it can be leveraged for extensive system compromise within build environments. Attackers could potentially gain access to build artifacts, steal sensitive information from the build process, or even escalate privileges to execute commands with elevated system permissions. The vulnerability particularly affects organizations that rely heavily on automated build systems and continuous integration pipelines, where the OBS service is used to manage software dependencies and external resources. This flaw can be exploited in both authenticated and unauthenticated scenarios depending on the service configuration, making it a significant threat to software supply chain integrity. The attack could result in data exfiltration, system compromise, and disruption of legitimate build processes, potentially affecting multiple downstream projects that depend on the compromised build infrastructure.
Mitigation strategies for CVE-2024-22033 should focus on immediate patching of the affected OBS service components, implementing strict input validation and sanitization mechanisms, and applying principle of least privilege access controls to build environments. Organizations should enforce proper configuration management practices to prevent untrusted input from reaching the service configuration processing layer. The implementation of secure coding practices including parameterized queries, input escaping, and proper command execution methods should be prioritized. Additionally, monitoring and logging mechanisms should be enhanced to detect suspicious command execution patterns, and network segmentation should be implemented to limit potential lateral movement. Security teams should also consider implementing runtime application self-protection measures and regular security assessments of build environments to identify similar vulnerabilities. The remediation process should include comprehensive testing of patched systems to ensure that the fix does not introduce regressions in legitimate functionality while maintaining the service's core capabilities for downloading and processing external resources.