Spoofing attack in Microsoft Windows and Windows Server - CVE-2020-0601
Published: January 14, 2020 / Updated: May 7, 2023
Vulnerability identifier: #VU24254
CSH Severity: High
CVSS v4: 8.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-0601
CWE-ID: CWE-451
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerability details
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to the way Windows CryptoAPI (Crypt32.dll) validates Elliptic Curve Cryptography (ECC) certificates. A remote attacker can use a spoofed code-signing certificate to sign a malicious executable, make it appear the file was from a trusted, legitimate source, trick a victim to open it and gain access to sensitive information.
A successful exploit could also allow the attacker to conduct man-in-the-middle attacks and decrypt confidential information on user connections to the affected software.
Updated
According to VirusTotal, there is in the wild exploitation of his vulnerability as of January 17, 2020.
Affected software
Microsoft Windows
Windows Server
Wyse Windows 10 IoT Enterprise
containerd (Alpine package)
Microsoft Edge
Google Chrome
Windows Server
Wyse Windows 10 IoT Enterprise
containerd (Alpine package)
Microsoft Edge
Google Chrome
How to mitigate CVE-2020-0601
Install updates from vendor's website.
containerd (Alpine package) - update to 1.3.3-r0
Microsoft Edge - update to 79.0.3945.130
Wyse Windows 10 IoT Enterprise - addressed in versions KB-4534271, KB-4534273
Google Chrome - update to 79.0.3945.130
Microsoft Edge - update to 79.0.3945.130
Wyse Windows 10 IoT Enterprise - addressed in versions KB-4534271, KB-4534273
Google Chrome - update to 79.0.3945.130
Links to Public Exploits and PoC-codes
- Exploit #9044 - -Awesome-CVE-2020-0601- (2017-0021) (May 7, 2023)
- Exploit #5285 - CVE-2020-0601 (PoC for CVE-2020-0601- Windows CryptoAPI (Crypt32.dll) POC: https://github.com/ollypwn/CurveBall) (April 12, 2021)
- Exploit #5247 - CurveBall-CVE-2020-0601-PoC () (March 30, 2021)
- Exploit #5213 - CVE-2020-0601-spoofkey () (March 14, 2021)
- Exploit #2984 - CVE-2018-20250-WinRAR (June 3, 2020)
- Exploit #2913 - Windows10_Cumulative_Updates_PowerShell (Powershell to patch CVE-2020-0601 . Complete security rollup for Windows 10 1507-1909) (June 3, 2020)
- Exploit #2829 - CurveBall (CVE-2020-0601: Windows CryptoAPI Vulnerability. (CurveBall/ChainOfFools)) (June 3, 2020)
- Exploit #2822 - CurveBall (PoC for CVE-2020-0601- Windows CryptoAPI (Crypt32.dll)) (June 3, 2020)
- Exploit #2831 - gringotts (proof of concept for CVE-2020-0601) (June 3, 2020)
- Exploit #2834 - Awesome-CVE-2020-0601 ( (June 3, 2020)
- Exploit #2837 - CVE-2020-0601 (PoC for CVE-2020-0601- Windows CryptoAPI (Crypt32.dll) POC: https://github.com/ollypwn/CurveBall) (June 3, 2020)
- Exploit #2838 - CurveBallDetection (Resources related to CurveBall (CVE-2020-0601) detection) (June 3, 2020)
- Exploit #2839 - CVE-2020-0601 (Curated list of CVE-2020-0601 resources) (June 3, 2020)
- Exploit #2840 - CurveballCertTool (PoC for CVE-2020-0601 vulnerability (Code Signing)) (June 3, 2020)
- Exploit #2842 - Spoofing attack (June 3, 2020)
- Exploit #2848 - CVE-2020-0601-EXP (这资源是作者复现微软签字证书漏洞CVE-2020-0601，结合相关资源及文章实现。推荐大家结合作者博客，理解ECC算法、Windows验证机制，并尝试自己复现可执行文件签名证书和HTTPS劫持的例子。作为网络安全初学者，自己确实很菜，但希望坚持下去，加油！) (June 3, 2020)
- Exploit #2849 - PoC_CurveBall (PoC for "CurveBall" CVE-2020-0601) (June 3, 2020)
- Exploit #2850 - cve-2020-0601_poc (CVE-2020-0601 proof of concept) (June 3, 2020)
- Exploit #2859 - CVE-2020-0601-spoofkey () (June 3, 2020)
- Exploit #2821 - curveball (CVE-2020-0601 #curveball - Alternative Key Calculator) (June 3, 2020)
- Exploit #2819 - CVE-2020-0601 () (June 3, 2020)
- Exploit #2818 - cve-2020-0601-Perl (Perl version of recently published scripts to build ECC certificates with specific parameters re CVE-2020-0601) (June 3, 2020)
- Exploit #2816 - CVE-2020-0601 () (June 3, 2020)
- Exploit #2815 - CVE-2020-0601 () (June 3, 2020)
- Exploit #2814 - CVE-2020-0601 () (June 3, 2020)
- Exploit #2392 - cve-2020-0601 (Zeek package to detect CVE-2020-0601) (April 7, 2020)
- Exploit #2391 - cve-2020-0601-utils (C++ based utility to check if certificates are trying to exploit CVE-2020-0601) (April 7, 2020)
- Exploit #2231 - Curveball (PoC for CVE-2020-0601 - CryptoAPI exploit) (March 24, 2020)
- Exploit #2220 - meetup-2-curveball (Materials for the second Rijeka secuity meetup. We will be discussing Microsoft cryptoapi vulnerability dubbed CurveBall (CVE-2020-0601)) (March 18, 2020)
- Exploit #2194 - curveball_lua (Repo containing lua scripts and PCAP to find CVE-2020-0601 exploit attempts via network traffic) (March 18, 2020)
- Exploit #280 - CVE-2020-0601 (Remote Code Execution Exploit ) (March 18, 2020)
- Exploit #287 - twoplustwo (Implementing CVE-2020-0601) (March 18, 2020)
- Exploit #286 - chainoffools (A PoC for CVE-2020-0601) (March 18, 2020)
- Exploit #285 - # CVE-2020-0601-spoofkey (March 18, 2020)
- Exploit #284 - badecparams (Proof of Concept for CVE-2020-0601) (March 18, 2020)
- Exploit #283 - CVE-2020-0601 (CurveBall CVE exploitation) (March 18, 2020)
- Exploit #282 - -CVE-2020-0601-ECC---EXPLOIT (CurveBall (CVE-2020-0601) - PoC CVE-2020-0601, or commonly referred to as CurveBall, is a vulnerability in which the signature of certificates using elliptic curve cryptography (ECC) is not correctly verified. Attackers ca (March 18, 2020)
- Exploit #281 - CVE-2020-0601 (A Windows Crypto Exploit) (March 18, 2020)