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Security researchers have released proof-of-concept (PoC) codes for exploiting (), the first bug that the National Security Agency (NSA) reported. Included in this year¡¯s first cycle of updates, the vulnerability affects Windows operating systems¡¯ CryptoAPI¡¯s validation of Elliptic Curve Cryptography (ECC) certificates and Public Key Infrastructure (PKI) trust. Enterprises and users are advised to patch their systems immediately to prevent attacks that exploit this security flaw.

The PoCs for CurveBall, released by researchers , , and , show how it can affect one of the cryptographic implementations of the Windows CryptoAPI (Crypt32.dll) library¡¯s functionality to the OS and applications. The researchers noted this vulnerability¡¯s potentially high impact, because any software that relies on the Windows function to determine an ECC X.509 certificate¡¯s validity may incorrectly determine the trustworthiness of a malicious certificate chain (including non-Microsoft third-party ones). Microsoft versions that are affected by CurveBall and support certificates with ECC keys include Windows 10, and Windows Servers 2016 and 2019.

[Read:?Security 101: Zero-day vulnerabilities and exploits]

Once exploited, an attacker may spoof the ECC¡¯s validity for files, applications, network connections, emails and executables, making a file appear to come from a trusted and legitimate provider. The spoofed validity enables attacks and access to decrypt confidential information on user connections, conduct man-in-the-middle attacks, and remote exploitation, among other risks.

As Microsoft noted in their , exploitation of the flaw is likely, especially given that public demo codes are available. NSA also noted in their that the patches available are simply for mitigation purposes only, though some researchers have already that an to Windows Defender have already been released to detect active exploit attempts to warn users. Users are advised to download the patches as soon as possible.

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live casino online users and customers are protected from the exploitation of CurveBall with the following rules:

• Deep Security and Vulnerability Protection Rule 1010130 - Microsoft Windows CryptoAPI Spoofing Vulnerability (CVE-2020-0601)
• Deep Security?and?Vulnerability Protection?Rule 1010132 - Microsoft Windows CryptoAPI Spoofing Vulnerability (CVE-2020-0601) -1
• Apex One Vulnerability Protection (iVP) Rule 1010130 - Microsoft Windows CryptoAPI Spoofing Vulnerability (CVE-2020-0601)
• TippingPoint Filter 36956: HTTP: Microsoft Windows CryptoAPI Spoofing Vulnerability
• TippingPoint?DVToolkit CSW?Filter C1000001: SSL: Elliptic Curve with Explicit Curve Parameters
• Deep Security Log Inspection Rule 1010129 - Microsoft Windows CryptoAPI Spoofing Vulnerability (CVE-2020-0601)
• Deep Discovery Inspector (DDI) Rule 3202 ¨C CVE-2020-0601 Spoofed Certificate Attempt ¨C TLS ¨C Beta
• live casino online Microsoft Windows CryptoAPI Spoofing Vulnerability Assessment Tool?(SHA256:?11e6b2e96e4e10c00b137aa1c362ac6ac7e65751948bd1f4ef2e34312da8dac0)

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Updated on January 21, 2020, 9:00AM PDT to include additional TippingPoint and Deep Security and Vulnerability Protection Rule.