FKIE_CVE-2020-0601

Vulnerability from fkie_nvd - Published: 2020-01-14 23:15 - Updated: 2026-06-17 02:46
Severity
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Summary
A spoofing vulnerability exists in the way Windows CryptoAPI (Crypt32.dll) validates Elliptic Curve Cryptography (ECC) certificates.An attacker could exploit the vulnerability by using a spoofed code-signing certificate to sign a malicious executable, making it appear the file was from a trusted, legitimate source, aka 'Windows CryptoAPI Spoofing Vulnerability'.
References
secure@microsoft.comhttp://packetstormsecurity.com/files/155960/CurveBall-Microsoft-Windows-CryptoAPI-Spoofing-Proof-Of-Concept.htmlThird Party Advisory, VDB Entry
secure@microsoft.comhttp://packetstormsecurity.com/files/155961/CurveBall-Microsoft-Windows-CryptoAPI-Spoofing-Proof-Of-Concept.htmlThird Party Advisory, VDB Entry
secure@microsoft.comhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0601Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/155960/CurveBall-Microsoft-Windows-CryptoAPI-Spoofing-Proof-Of-Concept.htmlThird Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/155961/CurveBall-Microsoft-Windows-CryptoAPI-Spoofing-Proof-Of-Concept.htmlThird Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0601Patch, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0601US Government Resource
Impacted products
Vendor Product Version
microsoft windows_10_1507 -
microsoft windows_10_1507 -
microsoft windows_10_1607 -
microsoft windows_10_1607 -
microsoft windows_10_1709 -
microsoft windows_10_1709 -
microsoft windows_10_1709 -
microsoft windows_10_1803 -
microsoft windows_10_1803 -
microsoft windows_10_1803 -
microsoft windows_10_1809 *
microsoft windows_10_1809 *
microsoft windows_10_1809 *
microsoft windows_10_1903 -
microsoft windows_10_1903 -
microsoft windows_10_1903 -
microsoft windows_10_1909 -
microsoft windows_10_1909 -
microsoft windows_10_1909 -
microsoft windows_server_1803 -
microsoft windows_server_1903 -
microsoft windows_server_1909 -
microsoft windows_server_2016 -
microsoft windows_server_2019 -
golang go *
golang go *
microsoft windows -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
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          "vendor": "Microsoft",
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            },
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  "cisaActionDue": "2022-05-03",
  "cisaExploitAdd": "2021-11-03",
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  "descriptions": [
    {
      "lang": "en",
      "value": "A spoofing vulnerability exists in the way Windows CryptoAPI (Crypt32.dll) validates Elliptic Curve Cryptography (ECC) certificates.An attacker could exploit the vulnerability by using a spoofed code-signing certificate to sign a malicious executable, making it appear the file was from a trusted, legitimate source, aka \u0027Windows CryptoAPI Spoofing Vulnerability\u0027."
    },
    {
      "lang": "es",
      "value": "Se presenta una vulnerabilidad de suplantaci\u00f3n de identidad en la manera en que Windows CryptoAPI (Crypt32.dll) comprueba los certificados Elliptic Curve Cryptography (ECC). Un atacante podr\u00eda explotar la vulnerabilidad mediante el uso de un certificado de firma de c\u00f3digo falsificado para firmar un ejecutable malicioso, haciendo que parezca que el archivo era de una fuente confiable y leg\u00edtima, tambi\u00e9n se conoce como \"Windows CryptoAPI Spoofing Vulnerability\"."
    }
  ],
  "id": "CVE-2020-0601",
  "lastModified": "2026-06-17T02:46:08.127",
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      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
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            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
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          "role": "CISA Coordinator",
          "timestamp": "2025-02-07T15:27:42.659796Z",
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  "published": "2020-01-14T23:15:30.207",
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  "sourceIdentifier": "secure@microsoft.com",
  "vulnStatus": "Analyzed",
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}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.