Vulnerability-Lookup

ubuntu-cve-2020-5216

Vulnerability from osv_ubuntu

Published

2020-01-23 03:15

Modified

2025-10-24 04:48

Summary

Details

In Secure Headers (RubyGem secure_headers), a directive injection vulnerability is present in versions before 3.9.0, 5.2.0, and 6.3.0. If user-supplied input was passed into append/override_content_security_policy_directives, a newline could be injected leading to limited header injection. Upon seeing a newline in the header, rails will silently create a new Content-Security-Policy header with the remaining value of the original string. It will continue to create new headers for each newline. This has been fixed in 6.3.0, 5.2.0, and 3.9.0.

Severity

4.4 (Medium)


                    
                      CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N

5.8 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2020-5216	REPORT
	https://github.com/twitter/secure_headers/securit…	REPORT
	https://github.com/twitter/secure_headers/commit/…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2020-5216	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ruby-secure-headers",
            "binary_version": "3.7.1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "ruby-secure-headers",
        "purl": "pkg:deb/ubuntu/ruby-secure-headers@3.7.1-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.7.1-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ruby-secure-headers",
            "binary_version": "6.1.1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "ruby-secure-headers",
        "purl": "pkg:deb/ubuntu/ruby-secure-headers@6.1.1-1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "6.0.0-1",
        "6.1.1-1"
      ]
    }
  ],
  "aliases": [],
  "details": "In Secure Headers (RubyGem secure_headers), a directive injection vulnerability is present in versions before 3.9.0, 5.2.0, and 6.3.0. If user-supplied input was passed into append/override_content_security_policy_directives, a newline could be injected leading to limited header injection. Upon seeing a newline in the header, rails will silently create a new Content-Security-Policy header with the remaining value of the original string. It will continue to create new headers for each newline. This has been fixed in 6.3.0, 5.2.0, and 3.9.0.",
  "id": "UBUNTU-CVE-2020-5216",
  "modified": "2025-10-24T04:48:17Z",
  "published": "2020-01-23T03:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-5216"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/twitter/secure_headers/security/advisories/GHSA-w978-rmpf-qmwg"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/twitter/secure_headers/commit/301695706f6a70517c2a90c6ef9b32178440a2d0"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-5216"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-5216"
  ]
}

CVE-2020-5216 (GCVE-0-2020-5216)

Vulnerability from cvelistv5 – Published: 2020-01-23 02:30 – Updated: 2024-08-04 08:22

Title

Limited header injection when using dynamic overrides with user input in RubyGems secure_headers

Summary

Severity

4.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/twitter/secure_headers/securit…	x_refsource_CONFIRM
https://github.com/twitter/secure_headers/commit/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Twitter	secure_headers	Affected: < 3.9.0 Affected: >= 5.0.0, < 5.2.0 Affected: >= 6.0.0, < 6.3.0

Show details on NVD website

JSON

To clipboard

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            "url": "https://github.com/twitter/secure_headers/commit/301695706f6a70517c2a90c6ef9b32178440a2d0"
          }
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      ],
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                          {
                            "version_value": "\u003c 3.9.0"
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                          {
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                          },
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                            "version_value": "\u003e= 6.0.0, \u003c 6.3.0"
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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.