gsd-2021-33621
Vulnerability from gsd
Modified
2022-11-18 00:00
Details
cgi.rb in Ruby through 2.6.x, through 3.0x, and through 3.1.x allows HTTP header injection. If a CGI application using the CGI library inserts untrusted input into the HTTP response header, an attacker can exploit it to insert a newline character to split a header, and inject malicious content to deceive clients.
Aliases
Aliases
CVE-2021-33621


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-33621",
    "id": "GSD-2021-33621",
    "references": [
      "https://advisories.mageia.org/CVE-2021-33621.html",
      "https://www.suse.com/security/cve/CVE-2021-33621.html",
      "https://ubuntu.com/security/CVE-2021-33621"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "cgi",
            "purl": "pkg:gem/cgi"
          }
        }
      ],
      "aliases": [
        "CVE-2021-33621",
        "GHSA-vc47-6rqg-c7f5"
      ],
      "details": "cgi.rb in Ruby through 2.6.x, through 3.0x, and through 3.1.x allows HTTP\nheader injection. If a CGI application using the CGI library inserts\nuntrusted input into the HTTP response header, an attacker can exploit it to\ninsert a newline character to split a header, and inject malicious content to\ndeceive clients.",
      "id": "GSD-2021-33621",
      "modified": "2022-11-18T00:00:00.000Z",
      "published": "2022-11-18T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://www.ruby-lang.org/en/news/2022/11/22/http-response-splitting-in-cgi-cve-2021-33621/"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 8.8,
          "type": "CVSS_V3"
        }
      ],
      "summary": "HTTP response splitting in CGI"
    }
  },
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      "description": "cgi.rb in Ruby through 2.6.x, through 3.0x, and through 3.1.x allows HTTP\nheader injection. If a CGI application using the CGI library inserts\nuntrusted input into the HTTP response header, an attacker can exploit it to\ninsert a newline character to split a header, and inject malicious content to\ndeceive clients.",
      "gem": "cgi",
      "ghsa": "vc47-6rqg-c7f5",
      "patched_versions": [
        "~\u003e 0.1.0.2",
        "~\u003e 0.2.2",
        "\u003e= 0.3.5"
      ],
      "title": "HTTP response splitting in CGI",
      "url": "https://www.ruby-lang.org/en/news/2022/11/22/http-response-splitting-in-cgi-cve-2021-33621/"
    },
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          "affected_versions": "All versions before 0.1.0.2, all versions starting from 0.2.0 before 0.2.2, all versions starting from 0.3.0 before 0.3.5",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-74",
            "CWE-937"
          ],
          "date": "2023-08-08",
          "description": "The cgi gem before 0.1.0.2, 0.2.x before 0.2.2, and 0.3.x before 0.3.5 for Ruby allows HTTP response splitting. This is relevant to applications that use untrusted user input either to generate an HTTP response or to create a CGI::Cookie object.",
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          "identifier": "CVE-2021-33621",
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            "CVE-2021-33621"
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          "not_impacted": "All versions starting from 0.1.0.2 before 0.2.0, all versions starting from 0.2.2 before 0.3.0, all versions starting from 0.3.5",
          "package_slug": "gem/cgi",
          "pubdate": "2022-11-18",
          "solution": "Upgrade to versions 0.1.0.2, 0.2.2, 0.3.5 or above.",
          "title": "Interpretation Conflict",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-33621",
            "https://www.ruby-lang.org/en/news/2022/11/22/http-response-splitting-in-cgi-cve-2021-33621/"
          ],
          "uuid": "31b0495b-ec38-4bb8-bba0-5da1f1b6d492"
        }
      ]
    },
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        ],
        "id": "CVE-2021-33621",
        "lastModified": "2024-01-24T05:15:10.787",
        "metrics": {
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                "attackComplexity": "LOW",
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  }
}


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