Vulnerability-Lookup

OESA-2024-2320 (CVE-2020-26979)

Vulnerability from osv_openeuler – Published: 2024-11-01 11:07 – Updated: 2026-08-06 11:07 – Source website

Summary

firefox security update

Details

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability.

Security Fix(es):

When a user typed a URL in the address bar or the search bar and quickly hit the enter key, a website could sometimes capture that event and then redirect the user before navigation occurred to the desired, entered address. To construct a convincing spoof the attacker would have had to guess what the user was typing, perhaps by suggesting it. This vulnerability affects Firefox < 84.(CVE-2020-26979)

One phishing tactic on the web is to provide a link with HTTP Auth. For example 'https://www.phishingtarget.com@evil.com'. To mitigate this type of attack, Firefox will display a warning dialog; however, this warning dialog would not have been displayed if evil.com used a redirect that was cached by the browser. This vulnerability affects Firefox < 86.(CVE-2021-23972)

Severity

8.8 (High)


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

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2020-26979	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-23972	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "firefox-79.0-32.oe2003sp4.aarch64.rpm",
          "firefox-debuginfo-79.0-32.oe2003sp4.aarch64.rpm",
          "firefox-debugsource-79.0-32.oe2003sp4.aarch64.rpm"
        ],
        "src": [
          "firefox-79.0-32.oe2003sp4.src.rpm"
        ],
        "x86_64": [
          "firefox-79.0-32.oe2003sp4.x86_64.rpm",
          "firefox-debuginfo-79.0-32.oe2003sp4.x86_64.rpm",
          "firefox-debugsource-79.0-32.oe2003sp4.x86_64.rpm",
          "mozilla-crashreporter-firefox-debuginfo-79.0-32.oe2003sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP4",
        "name": "firefox",
        "purl": "pkg:rpm/openEuler/firefox\u0026distro=openEuler-20.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "79.0-32.oe2003sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability.\r\n\r\nSecurity Fix(es):\r\n\r\nWhen a user typed a URL in the address bar or the search bar and quickly hit the enter key, a website could sometimes capture that event and then redirect the user before navigation occurred to the desired, entered address. To construct a convincing spoof the attacker would have had to guess what the user was typing, perhaps by suggesting it. This vulnerability affects Firefox \u0026lt; 84.(CVE-2020-26979)\r\n\r\nOne phishing tactic on the web is to provide a link with HTTP Auth. For example \u0026apos;https://www.phishingtarget.com@evil.com\u0026apos;. To mitigate this type of attack, Firefox will display a warning dialog; however, this warning dialog would not have been displayed if evil.com used a redirect that was cached by the browser. This vulnerability affects Firefox \u0026lt; 86.(CVE-2021-23972)",
  "id": "OESA-2024-2320",
  "modified": "2026-08-06T11:07:47Z",
  "published": "2024-11-01T11:07:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-2320"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26979"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23972"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "firefox security update",
  "upstream": [
    "CVE-2020-26979",
    "CVE-2021-23972"
  ]
}

CVE-2020-26979 (GCVE-0-2020-26979)

Vulnerability from cvelistv5 – Published: 2021-01-07 13:51 – Updated: 2024-08-04 16:03

Summary

Severity

No CVSS data available.

CWE

When entering an address in the address or search bars, a website could have redirected the user before they were navigated to the intended url

Assigner

mozilla mitre root

References

2 references

URL	Tags
https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_MISC
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Mozilla	Firefox	Affected: unspecified , < 84 (custom)

Show details on NVD website

JSON

To clipboard

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        }
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    "dateReserved": "2020-10-12T00:00:00.000Z",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

CVE-2021-23972 (GCVE-0-2021-23972)

Vulnerability from cvelistv5 – Published: 2021-02-26 01:54 – Updated: 2024-08-03 19:14

Summary

Severity

No CVSS data available.

CWE

HTTP Auth phishing warning was omitted when a redirect is cached

Assigner

mozilla mitre root

References

3 references

URL	Tags
https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_MISC
https://bugzilla.mozilla.org/show_bug.cgi?id=1683536	x_refsource_MISC
https://security.gentoo.org/glsa/202104-10	vendor-advisoryx_refsource_GENTOO

Impacted products

1 product

Vendor	Product	Version
Mozilla	Firefox	Affected: < 86

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T19:14:09.988Z",
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          },
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              "vendor-advisory",
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              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202104-10"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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        }
      ],
      "problemTypes": [
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            {
              "description": "HTTP Auth phishing warning was omitted when a redirect is cached",
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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.

Action not permitted

OESA-2024-2320 (CVE-2020-26979)

CVE-2020-26979 (GCVE-0-2020-26979)

CVE-2021-23972 (GCVE-0-2021-23972)

Tags

Sightings

Nomenclature

Related by attack behaviour