CVE-2025-9613

# CVE-2025-9613 PoC - PCIe IDE Tag Aliasing Attack Simulation # Note: This is a conceptual PoC for demonstrating the vulnerability # Actual exploitation requires PCIe protocol expertise and hardware access import struct class PCIeTagAliasingPOC: def __init__(self): self.tag_space = 256 # PCIe Tag field is 8 bits (0-255) def generate_malicious_request(self, tag_id, request_type=0x0000): """ Generate a Non-Posted Request with specific tag PCIe TLP Header format: Fmt[1:0] Type[4:0] ... Tag[7:0] ... """ # Memory Read Request (Non-Posted) tlp_header = struct.pack('B', 0x00) # Fmt: 32-bit data, No Payload tlp_header += struct.pack('B', request_type) # Type: Memory Read tlp_header += struct.pack('H', 0x0000) # Length tlp_header += struct.pack('B', tag_id) # Malicious tag return tlp_header def trigger_completion_timeout(self): """ Simulate triggering completion timeout scenario This causes the receiver to potentially reuse the tag """ print("[+] Step 1: Sending request with tag 0x42") req1 = self.generate_malicious_request(0x42) print("[+] Step 2: Simulating completion timeout (no response)") # In real attack, this would involve preventing completion response print("[+] Step 3: Request tag reuse with new request") req2 = self.generate_malicious_request(0x42) # Same tag! print("[+] Step 4: Injecting malicious completion data") malicious_data = b'\xDE\xAD\xBE\xEF' * 4 print("[-] Potential impact: Data delivered to wrong security context") return req1, req2, malicious_data def demonstrate_tag_aliasing(self): """ Demonstrate the tag aliasing condition """ print("=" * 60) print("CVE-2025-9613 PCIe IDE Tag Aliasing PoC") print("=" * 60) self.trigger_completion_timeout() print("[!] Note: Actual exploitation requires PCIe bus access") print("=" * 60) if __name__ == "__main__": poc = PCIeTagAliasingPOC() poc.demonstrate_tag_aliasing()

{"cve": {"id": "CVE-2025-9613", "sourceIdentifier": "[email protected]", "published": "2025-12-09T19:15:50.837", "lastModified": "2026-01-14T17:43:52.943", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was discovered in the PCI Express (PCIe) Integrity and Data Encryption (IDE) specification, where insufficient guidance on tag reuse after completion timeouts may allow multiple outstanding Non-Posted Requests to share the same tag. This tag aliasing condition can result in completions being delivered to the wrong security context, potentially compromising data integrity and confidentiality."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 2.5}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:pcisig:pci_express_integrity_and_data_encryption:-:*:*:*:*:*:*:*", "matchCriteriaId": "5FC26D98-4F15-4B0D-B661-BF2894CF8F5B"}]}]}], "references": [{"url": "https://pcisig.com/PCIeIDEStandardVulnerabilities", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://pcisig.com/specifications", "source": "[email protected]", "tags": ["Product"]}]}}