CVE-2024-46636: NASA EOSDIS MODAPS v8.1 SQL Injection

Executive Summary

A critical SQL injection vulnerability (CVE-2024-46636) has been disclosed in NASA's Earth Observing System Data and Information System (EOSDIS) MODAPS v8.1 — the Moderate Resolution Imaging Spectroradiometer Adaptive Processing System. The flaw resides in the category parameter and carries a CVSS score of 9.4 (Critical), enabling attackers to manipulate backend SQL queries and potentially exfiltrate or corrupt sensitive scientific and operational data.

CVSS Score: 9.4 (Critical)

Vulnerability Overview

Affected Products

Technical Analysis

Root Cause

CVE-2024-46636 is a classic SQL injection flaw introduced by unsanitized input in the category parameter of the MODAPS web application. The parameter is incorporated directly into backend SQL query construction without parameterization or proper input validation, allowing an attacker to append arbitrary SQL syntax.

Attack Flow

1. Attacker identifies the publicly accessible MODAPS endpoint
2. Attacker crafts a malicious value for the `category` parameter
   e.g., category=1' OR '1'='1'--
3. The injected SQL is evaluated by the backend database engine
4. Attacker enumerates tables, extracts data, or attempts privilege escalation
5. In worst-case scenarios, attacker manipulates or deletes data records

Example Payload

-- Basic detection (boolean-based)
category=1' AND 1=1--
category=1' AND 1=2--
 
-- Union-based extraction
category=1' UNION SELECT null, table_name, null FROM information_schema.tables--
 
-- Time-based blind injection
category=1'; WAITFOR DELAY '0:0:5'--

Why This Is Significant

EOSDIS MODAPS handles scientific satellite imagery data from NASA's MODIS instrument aboard the Terra and Aqua satellites. A successful exploitation could:

• Expose scientific datasets and processing metadata
• Access system credentials stored in the database
• Modify or delete earth observation records
• Use the database server as a pivot point for further internal infrastructure access
• Undermine data integrity of scientific archives relied upon globally

Impact Assessment

Immediate Remediation

Step 1: Apply Vendor Patch

Consult NASA EOSDIS security advisories for available patches or configuration mitigations for MODAPS v8.1.

Step 2: Parameterize All Queries

Replace vulnerable string concatenation with parameterized queries or prepared statements:

# Vulnerable pattern (do NOT use)
query = "SELECT * FROM products WHERE category = '" + category + "'"
 
# Secure pattern — parameterized query
cursor.execute("SELECT * FROM products WHERE category = %s", (category,))

Step 3: Input Validation

import re
 
def validate_category(value):
    # Allowlist only expected category formats
    if not re.match(r'^[a-zA-Z0-9_-]{1,50}$', value):
        raise ValueError("Invalid category value")
    return value

Step 4: Web Application Firewall Rules

Deploy WAF rules to detect and block common SQL injection patterns targeting this endpoint:

# ModSecurity / WAF rule concept
SecRule ARGS:category "@detectSQLi" \
    "id:1001,phase:2,block,msg:'SQL Injection in category parameter'"

Step 5: Database Privilege Restriction

-- Ensure the web application DB user has minimal permissions
REVOKE DELETE, DROP, ALTER ON modaps.* FROM 'webapp_user'@'%';
GRANT SELECT, INSERT ON modaps.public_data TO 'webapp_user'@'%';

Detection Indicators

Post-Remediation Checklist

1. Patch MODAPS to the latest available version
2. Audit all SQL queries in the MODAPS codebase for string concatenation patterns
3. Review database access logs for evidence of prior exploitation
4. Rotate database credentials used by the MODAPS application
5. Enable query logging and anomaly alerting on the database tier
6. Test with automated scanners (sqlmap, Burp Suite) to verify remediation
7. Notify NIST and update CVE remediation status after patching

References

• NVD — CVE-2024-46636
• NASA EOSDIS MODAPS Portal
• OWASP SQL Injection Prevention Cheat Sheet