CVE-2020-0601
Confirmed PUBLISHEDA spoofing vulnerability exists in the way Windows CryptoAPI (Crypt32.dll) validates Elliptic Curve Cryptography (ECC) certificates.An attacker...
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
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'.
- CVE Published
- Jan 14, 2020
- Exploitation Reported
- Nov 03, 2021
- CVSS
- 8.1 High
- EPSS
- —
Affected Versions
26 version rows · page 2 of 2
| Vendor | Product | Version | Status |
|---|---|---|---|
| Microsoft |
Windows 10 Version 1909 for ARM64-based Systems
|
unspecified |
Affected |
CVE References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0601 portal.msrc.microsoft.com · CVE Record https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CV...
- packetstormsecurity.com/files/155961/CurveBall-Microsoft-Windows-Cry... packetstormsecurity.com · CVE Record http://packetstormsecurity.com/files/155961/CurveBall-Microsoft-Windo...
- packetstormsecurity.com/files/155960/CurveBall-Microsoft-Windows-Cry... packetstormsecurity.com · CVE Record http://packetstormsecurity.com/files/155960/CurveBall-Microsoft-Windo...
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2021-11-03 00:00 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
AV:N/AC:M/Au:N/C:P/I:P/A:N
Exploitation Status
Exploited in the wild
Recorded 2021-11-03 00:00:00 UTC · CISA
Proof of concept available
Recorded 2020-01-14 23:53:18 UTC · GitHub
Weaknesses (CWE)
-
Improper Certificate Validation
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
github · Created 2020-02-17 15:01:54 UTC · 30 stars
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！
github · Created 2020-02-03 13:58:07 UTC · 1 stars
PoC for CVE-2020-0601- Windows CryptoAPI (Crypt32.dll) POC: https://github.com/ollypwn/CurveBall
github · Created 2020-01-19 18:20:26 UTC · 3 stars
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 can supply hand-rolled generators, bypassing validation, antivirus & all non-protections.
github · Created 2020-01-17 17:17:55 UTC · 2 stars
CurveBall CVE exploitation
github · Created 2020-01-17 16:24:31 UTC · 0 stars
github · Created 2020-01-16 12:40:48 UTC · 1 stars
Curated list of CVE-2020-0601 resources
github · Created 2020-01-16 02:46:21 UTC · 5 stars
😂An awesome curated list of repos for CVE-2020-0601.
github · Created 2020-01-15 17:26:58 UTC · 1 stars
A Windows Crypto Exploit
github · Created 2020-01-14 23:53:18 UTC · 2 stars
Remote Code Execution Exploit
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
00:00 UTC over 4 years ago00:00 UTC · over 4 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
23:53 UTC over 6 years ago23:53 UTC · over 6 years ago
Public PoC available
Public proof-of-concept code published
-
23:11 UTC over 6 years ago23:11 UTC · over 6 years ago
CVE published
Vulnerability disclosed publicly
-
00:00 UTC over 6 years ago00:00 UTC · over 6 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2020-0601
{
"cve_id": "CVE-2020-0601",
"title": "A spoofing vulnerability exists in the way Windows CryptoAPI (Crypt32.dll) va...",
"affected_vendor": "Microsoft",
"affected_product": "Windows, Windows Server, Windows 10 Version 1903 for 32-bit Systems, Windows 10 Version 1903 for x64-based Systems, Windows 10 Version 1903 for ARM64-based Systems, Windows Server, version 1903 (Server Core installation), Windows 10 Version 1909 for 32-bit Systems, Windows 10 Version 1909 for x64-based Systems, Windows Server, version 1909 (Server Core installation), Windows 10 Version 1909 for ARM64-based Systems",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 8.1,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}