OpenSSH up to 8.8 FIDO Authentication improper authentication ⚔ [Disputed]

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in OpenSSH up to 8.8. Affected by this vulnerability is an unknown functionality of the component FIDO Authentication. The manipulation results in improper authentication. This vulnerability is reported as CVE-2021-36368. The attack can be launched remotely. No exploit exists. The actual existence of this vulnerability is currently in question. It is advisable to upgrade the affected component. the vendor's position is "this is not an authentication bypass, since nothing is being bypassed."

Detailsinfo

A vulnerability classified as critical has been found in OpenSSH up to 8.8 (Connectivity Software). Affected is an unknown functionality of the component FIDO Authentication. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 03/13/2022. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2021-36368 since 07/09/2021. There are neither technical details nor an exploit publicly available.

The real existence of this vulnerability is still doubted at the moment. the vendor's position is "this is not an authentication bypass, since nothing is being bypassed."

Upgrading to version 8.9 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.7
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OpenSSH 8.9
Patch: github.com

Timelineinfo

07/09/2021 🔍
03/13/2022 +247 days 🔍
03/13/2022 +0 days 🔍
08/04/2024 +875 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Confirmation: 🔍
Disputed: 🔍

CVE: CVE-2021-36368 (🔍)
GCVE (CVE): GCVE-0-2021-36368
GCVE (VulDB): GCVE-100-194832

Entryinfo

Created: 03/13/2022 07:51
Updated: 08/04/2024 03:35
Changes: 03/13/2022 07:51 (43), 03/16/2022 09:15 (1), 03/16/2022 09:18 (1), 08/04/2024 03:35 (34)
Complete: 🔍
Cache ID: 216:27F:103

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