{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.0",
  "cveMetadata": {
    "cveId": "CVE-2022-30636"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc"
      },
      "title": "Limited directory traversal vulnerability on Windows in golang.org/x/crypto",
      "descriptions": [
        {
          "lang": "en",
          "value": "httpTokenCacheKey uses path.Base to extract the expected HTTP-01 token value to lookup in the DirCache implementation. On Windows, path.Base acts differently to filepath.Base, since Windows uses a different path separator (\\ vs. /), allowing a user to provide a relative path, i.e. .well-known/acme-challenge/..\\..\\asd becomes ..\\..\\asd. The extracted path is then suffixed with +http-01, joined with the cache directory, and opened. Since the controlled path is suffixed with +http-01 before opening, the impact of this is significantly limited, since it only allows reading arbitrary files on the system if and only if they have this suffix."
        }
      ],
      "affected": [
        {
          "vendor": "golang.org/x/crypto",
          "product": "golang.org/x/crypto/acme/autocert",
          "collectionURL": "https://pkg.go.dev",
          "packageName": "golang.org/x/crypto/acme/autocert",
          "versions": [
            {
              "version": "0",
              "lessThan": "0.0.0-20220525230936-793ad666bf5e",
              "status": "affected",
              "versionType": "semver"
            }
          ],
          "platforms": [
            "windows"
          ],
          "programRoutines": [
            {
              "name": "DirCache.Get"
            },
            {
              "name": "DirCache.Put"
            },
            {
              "name": "DirCache.Delete"
            },
            {
              "name": "HostWhitelist"
            },
            {
              "name": "Manager.GetCertificate"
            },
            {
              "name": "Manager.Listener"
            },
            {
              "name": "NewListener"
            },
            {
              "name": "listener.Accept"
            },
            {
              "name": "listener.Close"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE 22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://go.dev/cl/408694"
        },
        {
          "url": "https://go.dev/issue/53082"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2024-2961"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Juho Nurminen of Mattermost"
        }
      ]
    }
  }
}