Critical GitLab Vulnerability CVE-2023-7028 Exploited in the Wild
Executive Summary
In January 2024, GitLab disclosed a critical vulnerability (CVE-2023-7028) affecting versions 16.1.0 through 16.7.1 of its Community and Enterprise Editions. This flaw allowed attackers to send password reset emails to unverified email addresses, enabling account takeovers without user interaction. Exploitation of this vulnerability could lead to unauthorized access to sensitive data, code repositories, and potential supply chain attacks. (arstechnica.com)
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added CVE-2023-7028 to its Known Exploited Vulnerabilities catalog in May 2024, indicating active exploitation in the wild. Organizations using affected GitLab versions were urged to apply patches immediately to mitigate the risk of account hijacking and associated threats. (computerweekly.com)
Why This Matters Now
The active exploitation of CVE-2023-7028 underscores the critical need for organizations to promptly apply security patches. Delayed responses can lead to significant breaches, data theft, and compromise of software supply chains, emphasizing the importance of proactive vulnerability management.
Attack Path Analysis
An unauthenticated attacker exploited a critical vulnerability in GitLab's image file validation, leading to remote code execution. The attacker then escalated privileges by executing commands as the 'git' user, gaining control over the GitLab instance. Utilizing this access, the attacker moved laterally within the network to compromise additional systems. They established a command and control channel to maintain persistent access and control over the compromised systems. Sensitive data was exfiltrated from the GitLab instance and other compromised systems. Finally, the attacker deployed ransomware to encrypt data, causing significant operational disruption.
Kill Chain Progression
Initial Compromise
Description
An unauthenticated attacker exploited CVE-2021-22205 by uploading a malicious image file to the GitLab instance, leading to remote code execution.
Related CVEs
CVE-2021-39935
CVSS 7.5A server-side request forgery (SSRF) vulnerability in GitLab's CI Lint API allows unauthorized external users to perform SSRF attacks.
Affected Products:
GitLab GitLab Community Edition (CE) – 10.5 to 14.3.5, 14.4.0 to 14.4.3, 14.5.0 to 14.5.1
GitLab GitLab Enterprise Edition (EE) – 10.5 to 14.3.5, 14.4.0 to 14.4.3, 14.5.0 to 14.5.1
Exploit Status:
exploited in the wild
MITRE ATT&CK® Techniques
Exploit Public-Facing Application
Develop Capabilities: Exploits
Search Open Technical Databases: Code Repositories
Poisoned Pipeline Execution
Valid Accounts
Modify Authentication Process
Exploitation for Defense Evasion
Potential Compliance Exposure
Mapping incident impact across multiple compliance frameworks.
PCI DSS 4.0 – Ensure all system components are protected from known vulnerabilities
Control ID: 6.2
NYDFS 23 NYCRR 500 – Cybersecurity Policy
Control ID: 500.03
DORA – ICT Risk Management Framework
Control ID: Article 5
CISA ZTMM 2.0 – Data Security
Control ID: Pillar 3: Data
NIS2 Directive – Cybersecurity Risk Management Measures
Control ID: Article 21
Sector Implications
Industry-specific impact of the vulnerabilities, including operational, regulatory, and cloud security risks.
Computer Software/Engineering
Critical exposure through GitLab vulnerability exploitation enabling lateral movement, privilege escalation, and data exfiltration in development environments requiring immediate patching.
Government Administration
CISA directive mandates federal agencies patch five-year-old GitLab flaw amid active exploitation, highlighting zero trust segmentation needs for critical infrastructure.
Financial Services
GitLab vulnerability threatens code repositories and CI/CD pipelines, requiring enhanced egress security controls and encrypted traffic protection for compliance frameworks.
Health Care / Life Sciences
Active GitLab exploitation risks patient data through compromised development systems, necessitating multicloud visibility and HIPAA-compliant threat detection capabilities.
Sources
- CISA warns of five-year-old GitLab flaw exploited in attackshttps://www.bleepingcomputer.com/news/security/cisa-warns-of-five-year-old-gitlab-flaw-exploited-in-attacks/Verified
- GitLab Security Release: 14.5.2, 14.4.4, and 14.3.6https://about.gitlab.com/releases/2021/12/14/security-release-gitlab-14-5-2-released/Verified
- CVE-2021-39935 Detailhttps://nvd.nist.gov/vuln/detail/CVE-2021-39935Verified
Frequently Asked Questions
Cloud Native Security Fabric Mitigations and ControlsCNSF
Aviatrix Zero Trust CNSF is pertinent to this incident as it could have limited the attacker's ability to move laterally, exfiltrate data, and establish command and control channels, thereby reducing the overall impact and blast radius of the breach.
Control: Cloud Native Security Fabric (CNSF)
Mitigation: While Aviatrix CNSF may not prevent the initial exploitation of application vulnerabilities, it could limit the attacker's ability to exploit such vulnerabilities by enforcing strict network segmentation and access controls.
Control: Zero Trust Segmentation
Mitigation: Aviatrix Zero Trust Segmentation could likely limit the attacker's ability to escalate privileges by enforcing strict access controls and segmenting network traffic based on identity and context.
Control: East-West Traffic Security
Mitigation: Aviatrix East-West Traffic Security could likely constrain the attacker's lateral movement by monitoring and controlling internal traffic flows, thereby reducing the scope of systems that could be compromised.
Control: Multicloud Visibility & Control
Mitigation: Aviatrix Multicloud Visibility & Control could likely detect and limit unauthorized command and control communications by providing comprehensive monitoring and control over network traffic across cloud environments.
Control: Egress Security & Policy Enforcement
Mitigation: Aviatrix Egress Security & Policy Enforcement could likely limit data exfiltration by controlling and monitoring outbound traffic, thereby reducing the risk of unauthorized data transfers.
While Aviatrix CNSF may not prevent the deployment of ransomware, its segmentation and access controls could likely limit the spread of ransomware, thereby reducing the overall impact and operational disruption.
Impact at a Glance
Affected Business Functions
- Software Development
- Continuous Integration/Continuous Deployment (CI/CD)
- Version Control
Estimated downtime: 3 days
Estimated loss: $50,000
Potential exposure of source code repositories and CI/CD configurations.
Recommended Actions
Key Takeaways & Next Steps
- • Upgrade GitLab Instances: Ensure all GitLab instances are updated to versions 13.10.3, 13.9.6, or 13.8.8 to mitigate CVE-2021-22205.
- • Implement Inline IPS (Suricata): Deploy intrusion prevention systems to detect and block exploit attempts targeting known vulnerabilities.
- • Enhance East-West Traffic Security: Apply microsegmentation to limit lateral movement within the network.
- • Establish Egress Security & Policy Enforcement: Monitor and control outbound traffic to prevent unauthorized data exfiltration.
- • Deploy Threat Detection & Anomaly Response: Utilize anomaly detection systems to identify and respond to unusual activities indicative of compromise.
