github - ghsa-542x-jxrc-hw4x

ghsa-542x-jxrc-hw4x

Vulnerability from github

Published

2022-03-14 00:00

Modified

2022-03-21 00:00

Severity ?

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

Details

** DISPUTED ** An issue was discovered in OpenSSH before 8.9. If a client is using public-key authentication with agent forwarding but without -oLogLevel=verbose, and an attacker has silently modified the server to support the None authentication option, then the user cannot determine whether FIDO authentication is going to confirm that the user wishes to connect to that server, or that the user wishes to allow that server to connect to a different server on the user's behalf. NOTE: the vendor's position is "this is not an authentication bypass, since nothing is being bypassed."

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2021-36368"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-03-13T00:15:00Z",
    "severity": "LOW"
  },
  "details": "** DISPUTED ** An issue was discovered in OpenSSH before 8.9. If a client is using public-key authentication with agent forwarding but without -oLogLevel=verbose, and an attacker has silently modified the server to support the None authentication option, then the user cannot determine whether FIDO authentication is going to confirm that the user wishes to connect to that server, or that the user wishes to allow that server to connect to a different server on the user\u0027s behalf. NOTE: the vendor\u0027s position is \"this is not an authentication bypass, since nothing is being bypassed.\"",
  "id": "GHSA-542x-jxrc-hw4x",
  "modified": "2022-03-21T00:00:22Z",
  "published": "2022-03-14T00:00:21Z",
  "references": [
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      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-36368"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openssh/openssh-portable/pull/258"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mindrot.org/show_bug.cgi?id=3316"
    },
    {
      "type": "WEB",
      "url": "https://docs.ssh-mitm.at/trivialauth.html"
    },
    {
      "type": "WEB",
      "url": "https://security-tracker.debian.org/tracker/CVE-2021-36368"
    },
    {
      "type": "WEB",
      "url": "https://www.openssh.com/security.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

cve-2021-36368

Vulnerability from cvelistv5

Published

2022-03-12 23:24

Modified

2024-08-04 00:54

Severity ?

Summary

An issue was discovered in OpenSSH before 8.9. If a client is using public-key authentication with agent forwarding but without -oLogLevel=verbose, and an attacker has silently modified the server to support the None authentication option, then the user cannot determine whether FIDO authentication is going to confirm that the user wishes to connect to that server, or that the user wishes to allow that server to connect to a different server on the user's behalf. NOTE: the vendor's position is "this is not an authentication bypass, since nothing is being bypassed.

References

▼	URL	Tags
	https://www.openssh.com/security.html	x_refsource_MISC
	https://github.com/openssh/openssh-portable/pull/258	x_refsource_MISC
	https://bugzilla.mindrot.org/show_bug.cgi?id=3316	x_refsource_CONFIRM
	https://docs.ssh-mitm.at/trivialauth.html	x_refsource_MISC
	https://security-tracker.debian.org/tracker/CVE-2021-36368	x_refsource_MISC

Impacted products

▼	Vendor	Product
	n/a	n/a

Show details on NVD website

JSON

To clipboard

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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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