github - ghsa-2872-89wh-3frc

ghsa-2872-89wh-3frc

Vulnerability from github

Published

2021-12-17 00:00

Modified

2022-03-30 00:02

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

The ksmbd server through 3.4.2, as used in the Linux kernel through 5.15.8, sometimes communicates in cleartext even though encryption has been enabled. This occurs because it sets the SMB2_GLOBAL_CAP_ENCRYPTION flag when using the SMB 3.1.1 protocol, which is a violation of the SMB protocol specification. When Windows 10 detects this protocol violation, it disables encryption.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-45100"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-319"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-12-16T05:15:00Z",
    "severity": "HIGH"
  },
  "details": "The ksmbd server through 3.4.2, as used in the Linux kernel through 5.15.8, sometimes communicates in cleartext even though encryption has been enabled. This occurs because it sets the SMB2_GLOBAL_CAP_ENCRYPTION flag when using the SMB 3.1.1 protocol, which is a violation of the SMB protocol specification. When Windows 10 detects this protocol violation, it disables encryption.",
  "id": "GHSA-2872-89wh-3frc",
  "modified": "2022-03-30T00:02:00Z",
  "published": "2021-12-17T00:00:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45100"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cifsd-team/ksmbd/issues/550"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cifsd-team/ksmbd/pull/551"
    },
    {
      "type": "WEB",
      "url": "https://marc.info/?l=linux-kernel\u0026m=163961726017023\u0026w=2"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20220107-0001"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

cve-2021-45100

Vulnerability from cvelistv5

Published

2021-12-16 04:37

Modified

2024-08-04 04:32

Severity ?

Summary

References

▼	URL	Tags
	https://github.com/cifsd-team/ksmbd/issues/550	x_refsource_MISC
	https://github.com/cifsd-team/ksmbd/pull/551	x_refsource_MISC
	https://marc.info/?l=linux-kernel&m=163961726017023&w=2	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-20220107-0001/	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

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JSON

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          },
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            ],
            "url": "https://marc.info/?l=linux-kernel\u0026m=163961726017023\u0026w=2"
          },
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            "url": "https://security.netapp.com/advisory/ntap-20220107-0001/"
          }
        ],
        "title": "CVE Program Container"
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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