Vulnerability-Lookup

GSD-2020-11076

Vulnerability from gsd - Updated: 2020-05-22 00:00

Details

### Impact By using an invalid transfer-encoding header, an attacker could [smuggle an HTTP response.](https://portswigger.net/web-security/request-smuggling) ### Patches The problem has been fixed in Puma 3.12.5 and Puma 4.3.4.

Aliases

CVE-2020-11076

JSON

To clipboard

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    "alias": "CVE-2020-11076",
    "description": "In Puma (RubyGem) before 4.3.4 and 3.12.5, an attacker could smuggle an HTTP response, by using an invalid transfer-encoding header. The problem has been fixed in Puma 3.12.5 and Puma 4.3.4.",
    "id": "GSD-2020-11076",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-11076.html"
    ]
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      "id": "GSD-2020-11076",
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      "published": "2020-05-22T00:00:00.000Z",
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}

CVE-2020-11076 (GCVE-0-2020-11076)

Vulnerability from cvelistv5 – Published: 2020-05-22 14:50 – Updated: 2024-08-04 11:21

Title

HTTP Smuggling via Transfer-Encoding Header in Puma

Summary

In Puma (RubyGem) before 4.3.4 and 3.12.5, an attacker could smuggle an HTTP response, by using an invalid transfer-encoding header. The problem has been fixed in Puma 3.12.5 and Puma 4.3.4.

Severity

7.5 (High)


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

CWE

CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Assigner

GitHub_M mitre root

References

7 references

URL	Tags
https://github.com/puma/puma/security/advisories/…	x_refsource_CONFIRM
https://github.com/puma/puma/blob/master/History.…	x_refsource_MISC
https://github.com/puma/puma/commit/f24d5521295a2…	x_refsource_MISC
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST

Impacted products

1 product

Vendor	Product	Version
puma	puma	Affected: < 3.12.5 Affected: >= 4.0.0, < 4.3.4

Show details on NVD website

JSON

To clipboard

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          ],
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        },
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          "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00009.html"
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      ],
      "source": {
        "advisory": "GHSA-x7jg-6pwg-fx5h",
        "discovery": "UNKNOWN"
      },
      "title": "HTTP Smuggling via Transfer-Encoding Header in Puma",
      "x_legacyV4Record": {
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          "ID": "CVE-2020-11076",
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    "datePublished": "2020-05-22T14:50:12.000Z",
    "dateReserved": "2020-03-30T00:00:00.000Z",
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GHSA-X7JG-6PWG-FX5H

Vulnerability from github – Published: 2020-05-22 14:55 – Updated: 2023-05-16 15:53

Summary

HTTP Smuggling via Transfer-Encoding Header in Puma

Details

Impact

By using an invalid transfer-encoding header, an attacker could smuggle an HTTP response.

Originally reported by @ZeddYu, who has our thanks for the detailed report.

Patches

The problem has been fixed in Puma 3.12.5 and Puma 4.3.4.

For more information

If you have any questions or comments about this advisory:

Open an issue in Puma
See our security policy

Severity

7.5 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "puma"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.12.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "puma"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "4.3.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-11076"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-444"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-05-22T14:40:36Z",
    "nvd_published_at": "2020-05-22T15:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nBy using an invalid transfer-encoding header, an attacker could [smuggle an HTTP response.](https://portswigger.net/web-security/request-smuggling)\n\nOriginally reported by @ZeddYu, who has our thanks for the detailed report.\n\n### Patches\n\nThe problem has been fixed in Puma 3.12.5 and Puma 4.3.4.\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n* Open an issue in [Puma](https://github.com/puma/puma)\n* See our [security policy](https://github.com/puma/puma/security/policy)",
  "id": "GHSA-x7jg-6pwg-fx5h",
  "modified": "2023-05-16T15:53:31Z",
  "published": "2020-05-22T14:55:05Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/puma/puma/security/advisories/GHSA-x7jg-6pwg-fx5h"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-11076"
    },
    {
      "type": "WEB",
      "url": "https://github.com/puma/puma/commit/f24d5521295a2152c286abb0a45a1e1e2bd275bd"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/puma/puma"
    },
    {
      "type": "WEB",
      "url": "https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puma/CVE-2020-11076.yml"
    },
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      "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00009.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SKIY5H67GJIGJL6SMFWFLUQQQR3EMVPR"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00034.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00038.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "HTTP Smuggling via Transfer-Encoding Header in Puma"
}

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.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

GSD-2020-11076

CVE-2020-11076 (GCVE-0-2020-11076)

GHSA-X7JG-6PWG-FX5H

Impact

Patches

For more information

Tags

Sightings

Nomenclature

Related by attack behaviour