Executive Summary

Informations
Name CVE-2021-36368 First vendor Publication 2022-03-13
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Overall CVSS Score 3.7
Base Score 3.7 Environmental Score 3.7
impact SubScore 1.4 Temporal Score 3.7
Exploitabality Sub Score 2.2
 
Attack Vector Network Attack Complexity High
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact Low
Integrity Impact None Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:H/Au:N/C:P/I:N/A:N)
Cvss Base Score 2.6 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity High
Cvss Expoit Score 4.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36368

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-287 Improper Authentication

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 159
Os 3

Sources (Detail)

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

Alert History

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Date Informations
2024-11-28 13:58:57
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2024-08-04 09:27:45
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2024-08-02 13:27:03
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2024-08-02 01:26:05
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2024-07-06 02:19:45
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2024-05-17 09:28:17
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2024-05-14 21:28:04
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2024-04-11 09:28:19
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2024-03-21 09:28:21
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2024-02-02 02:27:13
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2024-02-01 12:24:19
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2023-11-07 21:32:41
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2023-09-05 13:21:29
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2023-09-05 01:23:50
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2023-09-02 13:20:02
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2023-09-02 01:24:12
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2023-08-12 13:26:07
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2023-08-12 01:23:25
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2023-08-11 13:18:22
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2023-08-11 01:24:12
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2023-08-06 13:16:20
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2023-08-06 01:23:10
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2023-08-04 13:16:42
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2023-08-04 01:23:31
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2023-07-14 13:16:46
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2023-07-14 01:23:19
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2023-03-29 02:18:53
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2023-03-28 12:23:31
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2022-10-11 13:08:29
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2022-10-11 01:22:58
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2022-08-06 02:05:55
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2022-07-01 21:27:28
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2022-04-13 00:23:20
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2022-03-20 09:22:56
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2022-03-14 12:53:42
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2022-03-13 05:22:57
  • First insertion