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CVE-2026-50751 is a critical authentication bypass vulnerability in Check Point Remote Access VPN and Mobile Access, including affected Security Gateway and Spark Firewall deployments that use the deprecated IKEv1 key exchange path for remote access. The flaw is caused by a logic-flow weakness in certificate validation during the IKEv1 handshake, allowing the gateway to accept a remote access session as authenticated without verifying a valid user password. Public technical reporting indicates the vulnerable path can allow an unauthenticated attacker to complete IKEv1 phase 1 and authenticate as a provisioned Remote Access user without a valid certificate, corresponding private key, or password under affected authentication modes. The issue affects only specific configurations in which Remote Access or Mobile Access is enabled, IKEv1 is permitted for remote access, legacy remote-access clients are accepted, and machine certificate authentication is not mandatory.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (7 hidden).
Repository contains a single substantive Python exploit/detection artifact generator plus a README. The Python script is a standalone operational exploit for CVE-2026-50751 affecting Check Point Remote Access VPN / Mobile Access when legacy IKEv1 Remote Access is enabled. Its core capability is to authenticate as a known provisioned Remote Access username without possessing a valid client certificate, private key, or password. The exploit implements substantial protocol logic itself rather than relying on an external framework: socket transport, IKEv1/ISAKMP message construction, Diffie-Hellman group 2 exchange, RFC 2409 key derivation, HMAC-SHA1 PRF, AES-CBC encryption/decryption, and X.509 certificate generation using Python cryptography. Based on the comments and CLI, it forges a self-signed certificate whose subject DN matches the target user and abuses the vulnerable gateway behavior where attacker-controlled VPNExtFeatures flags cause peer-auth/signature verification to be skipped. Success is determined by whether phase 1 is granted and the gateway treats the session as authenticated for that user. Repository structure is minimal: README.md documents the vulnerability, prerequisites, usage, and expected output; watchTowr-vs-Check-Point-CVE-2026-50751.py is the main and only code file. The script accepts a remote host, remote port, username to impersonate, optional organization and OU values for the forged DN, timeout/retry settings, and a TCPT mode for Visitor Mode over raw TCP 443. It can target standard IKE over UDP 500 or 4500, or Check Point Visitor Mode over TCP 443. This is not merely a detector in the narrow sense: although branded as a detection artifact generator, it actively performs the authentication bypass against the target and confirms exploitation when the gateway authenticates the supplied username. No post-auth remote code execution payload is included; the exploit’s result is unauthorized VPN authentication / identity impersonation at the IKEv1 phase-1 level.
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An actively exploited VPN authentication/login bypass in Check Point Quantum Security Gateway that allows unauthorized remote access without a valid password.
A purported Check Point VPN vulnerability used as bait in fake PoC repositories distributing the ChocoPoC RAT.
A specific vulnerability identified as CVE-2026-50751 is referenced in a repository update that adds a new reference link and remediation details, but the content does not describe the vulnerability type or impact.
Критическая уязвимость обхода аутентификации в VPN-шлюзах Check Point на Gaia OS, связанная с ошибкой логики валидации сертификатов Remote Access VPN и Mobile Access при использовании IKEv1, позволяющая удалённому неаутентифицированному атакующему установить VPN-соединение без валидного пароля.
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Cross-references every affected SKU, including bundled OEM variants.
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