CVE-2020-28042 - Vulnerability Details - OpenCVE

ServiceStack before 5.9.2 mishandles JWT signature verification unless an application has a custom ValidateToken function that establishes a valid minimum length for a signature.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.35995.

Key SSVC decision points have not yet been added.

Vendors	Products
Servicestack	Servicestack

Configuration 1 [-]

cpe:2.3:a:servicestack:servicestack:*:*:*:*:*:*:*:*

No data.

No data.

Advisories

Source	ID	Title
Github GHSA	GHSA-v5rv-hpxg-8x49	Signature validation bypass in ServiceStack

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://forums.servicestack.net/t/servicestack-v5-9-2-released/8850
https://github.com/ServiceStack/ServiceStack/commit/540d4060e877a03ae95343c1a8560a26768585ee
https://www.shielder.it/advisories/servicestack-jwt-signature-verification-bypass/
https://www.shielder.it/blog/2020/11/re-discovering-a-jwt-authentication-bypass-in-servicestack/

History

No history.

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2020-11-01T04:50:48

Updated: 2024-08-04T16:33:56.869Z

Reserved: 2020-11-01T00:00:00

Link: CVE-2020-28042

Vulnrichment

No data.

NVD

Status : Modified

Published: 2020-11-02T21:15:31.320

Modified: 2024-11-21T05:22:15.970

Link: CVE-2020-28042

Redhat

No data.

OpenCVE Enrichment

No data.

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