Vulnerability-Lookup

OESA-2022-1646 (CVE-2020-24612)

Vulnerability from osv_openeuler – Published: 2022-05-11 11:04 – Updated: 2026-08-06 11:04 – Source website

Summary

selinux-policy security update

Details

SELinux Base package for SELinux Reference Policy - modular.

Security Fix(es):

An issue was discovered in the selinux-policy (aka Reference Policy) package 3.14 through 2020-08-24 because the .config/Yubico directory is mishandled. Consequently, when SELinux is in enforced mode, pam-u2f is not allowed to read the user's U2F configuration file. If configured with the nouserok option (the default when configured by the authselect tool), and that file cannot be read, the second factor is disabled. An attacker with only the knowledge of the password can then log in, bypassing 2FA.(CVE-2020-24612)

Severity

4.7 (Medium)


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

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2020-24612	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "noarch": [
          "selinux-policy-3.14.2-77.oe1.noarch.rpm",
          "selinux-policy-devel-3.14.2-77.oe1.noarch.rpm",
          "selinux-policy-help-3.14.2-77.oe1.noarch.rpm",
          "selinux-policy-minimum-3.14.2-77.oe1.noarch.rpm",
          "selinux-policy-mls-3.14.2-77.oe1.noarch.rpm",
          "selinux-policy-sandbox-3.14.2-77.oe1.noarch.rpm",
          "selinux-policy-targeted-3.14.2-77.oe1.noarch.rpm"
        ],
        "src": [
          "selinux-policy-3.14.2-77.oe1.src.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "selinux-policy",
        "purl": "pkg:rpm/openEuler/selinux-policy\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.2-77.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "noarch": [
          "selinux-policy-3.14.2-76.oe1.noarch.rpm",
          "selinux-policy-devel-3.14.2-76.oe1.noarch.rpm",
          "selinux-policy-help-3.14.2-76.oe1.noarch.rpm",
          "selinux-policy-minimum-3.14.2-76.oe1.noarch.rpm",
          "selinux-policy-mls-3.14.2-76.oe1.noarch.rpm",
          "selinux-policy-sandbox-3.14.2-76.oe1.noarch.rpm",
          "selinux-policy-targeted-3.14.2-76.oe1.noarch.rpm"
        ],
        "src": [
          "selinux-policy-3.14.2-76.oe1.src.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP3",
        "name": "selinux-policy",
        "purl": "pkg:rpm/openEuler/selinux-policy\u0026distro=openEuler-20.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.2-76.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "SELinux Base package for SELinux Reference Policy - modular.\n\r\nSecurity Fix(es):\r\n\r\nAn issue was discovered in the selinux-policy (aka Reference Policy) package 3.14 through 2020-08-24 because the .config/Yubico directory is mishandled. Consequently, when SELinux is in enforced mode, pam-u2f is not allowed to read the user\u0027s U2F configuration file. If configured with the nouserok option (the default when configured by the authselect tool), and that file cannot be read, the second factor is disabled. An attacker with only the knowledge of the password can then log in, bypassing 2FA.(CVE-2020-24612)",
  "id": "OESA-2022-1646",
  "modified": "2026-08-06T11:04:55Z",
  "published": "2022-05-11T11:04:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1646"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-24612"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "selinux-policy security update",
  "upstream": [
    "CVE-2020-24612"
  ]
}

CVE-2020-24612 (GCVE-0-2020-24612)

Vulnerability from cvelistv5 – Published: 2020-08-24 20:46 – Updated: 2024-08-04 15:19

Summary

Severity

6.7 (Medium)


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

CWE

Assigner

mitre mitre root Scorecard

References

2 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1860888	x_refsource_MISC
https://github.com/fedora-selinux/selinux-policy/…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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        "providerMetadata": {
          "dateUpdated": "2024-08-04T15:19:08.684Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
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            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1860888"
          },
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              "x_refsource_MISC",
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            ],
            "url": "https://github.com/fedora-selinux/selinux-policy/commit/71e1989028802c7875d3436fd3966c587fa383fb"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "vendor": "n/a",
          "versions": [
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in the selinux-policy (aka Reference Policy) package 3.14 through 2020-08-24 because the .config/Yubico directory is mishandled. Consequently, when SELinux is in enforced mode, pam-u2f is not allowed to read the user\u0027s U2F configuration file. If configured with the nouserok option (the default when configured by the authselect tool), and that file cannot be read, the second factor is disabled. An attacker with only the knowledge of the password can then log in, bypassing 2FA."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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      "problemTypes": [
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      "providerMetadata": {
        "dateUpdated": "2020-08-24T20:46:16.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
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        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
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          "ID": "CVE-2020-24612",
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        },
        "affects": {
          "vendor": {
            "vendor_data": [
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                "product": {
                  "product_data": [
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                          {
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                          }
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                "vendor_name": "n/a"
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        "data_format": "MITRE",
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        "data_version": "4.0",
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            }
          ]
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        "impact": {
          "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
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            "confidentialityImpact": "HIGH",
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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.

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.
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OESA-2022-1646 (CVE-2020-24612)

CVE-2020-24612 (GCVE-0-2020-24612)

Tags

Sightings

Nomenclature

Related by attack behaviour