{"answers":{"affected":"2 open source packages ship an affected version, including golang and stdlib. It affects 13 products.","exploited":"Yes. Attackers have exploited CVE-2020-0601 in the wild since at least 3 Nov 2021.","fix":"Upgrade golang to a fixed version for your release line: 1.12.16 or 1.13.7. US federal agencies must fix it by 3 May 2022.","what":"CVE-2020-0601 is a high-severity vulnerability in Golang Go, published on 14 Jan 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2020-0601 and fix it if it is affected.\n\nWhat it is: CVE-2020-0601 is a high-severity vulnerability in Golang Go, published on 14 Jan 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: Yes. Attackers have exploited CVE-2020-0601 in the wild since at least 3 Nov 2021.\n\nAffected packages and fixed versions:\n- golang (Bitnami): affected from 1.12.0; fixed in 1.12.16, 1.13.7\n- stdlib (Go): affected all versions; fixed in 1.12.16, 1.13.7\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2020-0601/ (Markdown: https://insights.sbomify.com/CVE-2020-0601/index.md)","id":"CVE-2020-0601","markdown":"https://insights.sbomify.com/CVE-2020-0601/index.md","name":"CVE-2020-0601","record":{"aliases":["BIT-golang-2020-0601","CLEANSTART-2025-WA86088","GHSA-82jc-cv6x-r223","GO-2022-0535"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Windows CryptoAPI","requires_auth":"none","summary":"Attackers can spoof code-signing certificates to make malicious executables appear trusted, bypassing Windows CryptoAPI validation.","user_interaction":"required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"go","vendor":"golang"},{"product":"windows_10_1507","vendor":"microsoft"},{"product":"windows_10_1607","vendor":"microsoft"},{"product":"windows_10_1709","vendor":"microsoft"},{"product":"windows_10_1803","vendor":"microsoft"},{"product":"windows_10_1809","vendor":"microsoft"},{"product":"windows_10_1903","vendor":"microsoft"},{"product":"windows_10_1909","vendor":"microsoft"},{"product":"windows_server_1803","vendor":"microsoft"},{"product":"windows_server_1903","vendor":"microsoft"},{"product":"windows_server_1909","vendor":"microsoft"},{"product":"windows_server_2016","vendor":"microsoft"},{"product":"windows_server_2019","vendor":"microsoft"}],"cvss":{"score":8.1,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-295","name":"Improper Certificate Validation"}],"description":"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'.","ecosystems":["Bitnami","Go"],"exploits":{"exploitdb":1,"first_seen":"2020-01-14","github_poc":35,"max_poc_stars":890,"metasploit":0,"nuclei":0,"refs":[{"date":"2020-01-15T23:07:41Z","kind":"github_poc","ref":"https://github.com/ly4k/CurveBall","stars":890,"title":"PoC for CVE-2020-0601- Windows CryptoAPI (Crypt32.dll)"},{"date":"2020-01-15T23:15:32Z","kind":"github_poc","ref":"https://github.com/kudelskisecurity/chainoffools","stars":336,"title":"A PoC for CVE-2020-0601"},{"date":"2020-01-20T16:24:20Z","kind":"github_poc","ref":"https://github.com/gentilkiwi/curveball","stars":78,"title":"CVE-2020-0601 #curveball - Alternative Key Calculator"},{"date":"2020-01-16T23:44:37Z","kind":"github_poc","ref":"https://github.com/saleemrashid/badecparams","stars":66,"title":"Proof of Concept for CVE-2020-0601"},{"date":"2020-01-15T00:01:29Z","kind":"github_poc","ref":"https://github.com/0xxon/cve-2020-0601","stars":35,"title":"Zeek package to detect CVE-2020-0601"},{"date":"2020-02-17T15:01:54Z","kind":"github_poc","ref":"https://github.com/eastmountyxz/CVE-2020-0601-EXP","stars":30,"title":"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！"},{"date":"2020-01-28T21:24:54Z","kind":"github_poc","ref":"https://github.com/ioncodes/Curveball","stars":20,"title":"PoC for CVE-2020-0601 - CryptoAPI exploit"},{"date":"2020-01-15T23:07:02Z","kind":"github_poc","ref":"https://github.com/0xxon/cve-2020-0601-plugin","stars":5,"title":"Zeek package that uses OpenSSL to detect CVE-2020-0601 exploit attempts"}],"tier":"exploited"},"has_fix":true,"headline":"Microsoft Windows CryptoAPI Spoofing","id":"CVE-2020-0601","indexable":true,"kev":{"dateAdded":"2021-11-03","dueDate":"2022-05-03","knownRansomwareCampaignUse":"Unknown","product":"Windows","requiredAction":"Apply updates per vendor instructions.","vendorProject":"Microsoft","vulnerabilityName":"Microsoft Windows CryptoAPI Spoofing Vulnerability"},"kind":"cve","links":{"ecosystem":"Bitnami","product":"golang:go","products":["golang:go","microsoft:windows_10_1507","microsoft:windows_10_1607","microsoft:windows_10_1809","microsoft:windows_server_2016","microsoft:windows_server_2019"],"type":"security_feature_bypass","year":"2020"},"n_packages":2,"n_references":3,"next":{"headline":"Denial of service in ASP.NET Core","id":"CVE-2020-0602"},"packages":[{"ecosystem":"Bitnami","fixed":["1.12.16","1.13.7"],"introduced":["1.12.0","1.13.0"],"last_affected":[],"package":"golang","purl":"pkg:bitnami/golang","source":"BIT-golang-2020-0601"},{"ecosystem":"Go","fixed":["1.12.16","1.13.7"],"introduced":["0","1.13.0-0"],"last_affected":[],"package":"stdlib","purl":"pkg:golang/stdlib","source":"GO-2022-0535"}],"prev":{"headline":"Privilege escalation in Intel(R) NUC Firmware","id":"CVE-2020-0600"},"products":["Windows","Windows 10 Version 1903 for 32-bit Systems","Windows 10 Version 1903 for ARM64-based Systems","Windows 10 Version 1903 for x64-based Systems","Windows 10 Version 1909 for 32-bit Systems","Windows 10 Version 1909 for ARM64-based Systems","Windows 10 Version 1909 for x64-based Systems","Windows Server","Windows Server, version 1903 (Server Core installation)","Windows Server, version 1909 (Server Core installation)"],"published":"2020-01-14","related":[{"cvss_score":9.8,"headline":"Missing bound checks can lead to memory corruption in safe Go in cmd/compile","id":"CVE-2026-27143","kev_date_added":null,"published":"2026-04-08"},{"cvss_score":9.8,"headline":"Unexpected behavior from Is methods for IPv4-mapped IPv6 addresses in net/netip","id":"CVE-2024-24790","kev_date_added":null,"published":"2024-06-05"},{"cvss_score":9.8,"headline":"Arbitrary code execution via go.mod toolchain directive in cmd/go","id":"CVE-2023-39320","kev_date_added":null,"published":"2023-09-08"},{"cvss_score":9.8,"headline":"Improper handling of JavaScript whitespace in html/template","id":"CVE-2023-24540","kev_date_added":null,"published":"2023-05-11"},{"cvss_score":9.8,"headline":"Backticks not treated as string delimiters in html/template","id":"CVE-2023-24538","kev_date_added":null,"published":"2023-04-06"},{"cvss_score":9.8,"headline":"Other in go/golang","id":"CVE-2012-2666","kev_date_added":null,"published":"2021-07-09"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-10-21","vendors":["Microsoft"]},"summary":"Attackers can spoof code-signing certificates to make malicious executables appear trusted, bypassing Windows CryptoAPI validation.","url":"https://insights.sbomify.com/CVE-2020-0601/"}