Vulnerability-Lookup

GHSA-Q8HG-PF8V-CXRV

Vulnerability from github – Published: 2022-03-26 00:22 – Updated: 2024-02-01 15:49

Summary

Symfony Http-Kernel has non-constant time comparison in UriSigner

Details

When checking the signature of an URI (an ESI fragment URL for instance), the URISigner did not used a constant time string comparison function, resulting in a potential remote timing attack vulnerability.

Severity

8.1 (High)


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

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{
  "affected": [
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      "package": {
        "ecosystem": "Packagist",
        "name": "symfony/http-kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.2.0"
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              "fixed": "2.8.52"
            }
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              "introduced": "4.3.0"
            },
            {
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            }
          ],
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        }
      ]
    }
  ],
  "aliases": [
    "CVE-2019-18887"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-203"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-03-26T00:22:49Z",
    "nvd_published_at": "2019-11-21T23:15:13Z",
    "severity": "HIGH"
  },
  "details": "When checking the signature of an URI (an ESI fragment URL for instance), the URISigner did not used a constant time string comparison function, resulting in a potential remote timing attack vulnerability.",
  "id": "GHSA-q8hg-pf8v-cxrv",
  "modified": "2024-02-01T15:49:08Z",
  "published": "2022-03-26T00:22:49Z",
  "references": [
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      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-18887"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/http-kernel/CVE-2019-18887.yaml"
    },
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      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2019-18887.yaml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/symfony/symfony/releases/tag/v4.3.8"
    },
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      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DZNXRVHDQBNZQUCNRVZICPPBFRAUWUJX"
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    },
    {
      "type": "WEB",
      "url": "https://symfony.com/blog/cve-2019-18887-use-constant-time-comparison-in-urisigner"
    },
    {
      "type": "WEB",
      "url": "https://symfony.com/blog/symfony-4-3-8-released"
    },
    {
      "type": "WEB",
      "url": "https://symfony.com/cve-2019-18887"
    }
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Symfony Http-Kernel has non-constant time comparison in UriSigner"
}

CVE-2019-18887 (GCVE-0-2019-18887)

Vulnerability from cvelistv5 – Published: 2019-11-21 22:18 – Updated: 2024-08-05 02:02

Summary

An issue was discovered in Symfony 2.8.0 through 2.8.50, 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. The UriSigner was subject to timing attacks. This is related to symfony/http-kernel.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

6 references

URL	Tags
https://symfony.com/blog/symfony-4-3-8-released	x_refsource_CONFIRM
https://github.com/symfony/symfony/releases/tag/v4.3.8	x_refsource_CONFIRM
https://symfony.com/blog/cve-2019-18887-use-const…	x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Date Public

2019-11-13 00:00

Show details on NVD website

JSON

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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.
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.