CVE-2020-28042

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2020-28042
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.

5.3 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

5.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:P/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References
Link Resource
https://forums.servicestack.net/t/servicestack-v5-9-2-released/8850 Release Notes Vendor Advisory
https://github.com/ServiceStack/ServiceStack/commit/540d4060e877a03ae95343c1a8560a26768585ee Patch Third Party Advisory
https://www.shielder.it/advisories/servicestack-jwt-signature-verification-bypass/ Exploit Third Party Advisory
https://www.shielder.it/blog/2020/11/re-discovering-a-jwt-authentication-bypass-in-servicestack/ Exploit Third Party Advisory
https://forums.servicestack.net/t/servicestack-v5-9-2-released/8850 Release Notes Vendor Advisory
https://github.com/ServiceStack/ServiceStack/commit/540d4060e877a03ae95343c1a8560a26768585ee Patch Third Party Advisory
https://www.shielder.it/advisories/servicestack-jwt-signature-verification-bypass/ Exploit Third Party Advisory
https://www.shielder.it/blog/2020/11/re-discovering-a-jwt-authentication-bypass-in-servicestack/ Exploit Third Party Advisory
Configurations

Configuration 1 (hide)

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

21 Nov 2024, 05:22

Type Values Removed Values Added
References () https://forums.servicestack.net/t/servicestack-v5-9-2-released/8850 - Release Notes, Vendor Advisory () https://forums.servicestack.net/t/servicestack-v5-9-2-released/8850 - Release Notes, Vendor Advisory
References () https://github.com/ServiceStack/ServiceStack/commit/540d4060e877a03ae95343c1a8560a26768585ee - Patch, Third Party Advisory () https://github.com/ServiceStack/ServiceStack/commit/540d4060e877a03ae95343c1a8560a26768585ee - Patch, Third Party Advisory
References () https://www.shielder.it/advisories/servicestack-jwt-signature-verification-bypass/ - Exploit, Third Party Advisory () https://www.shielder.it/advisories/servicestack-jwt-signature-verification-bypass/ - Exploit, Third Party Advisory
References () https://www.shielder.it/blog/2020/11/re-discovering-a-jwt-authentication-bypass-in-servicestack/ - Exploit, Third Party Advisory () https://www.shielder.it/blog/2020/11/re-discovering-a-jwt-authentication-bypass-in-servicestack/ - Exploit, Third Party Advisory
Information

Published : 2020-11-02 21:15

Updated : 2024-11-21 05:22

NVD link : CVE-2020-28042

Mitre link : CVE-2020-28042

CVE.ORG link : CVE-2020-28042

JSON object : View

Products Affected

servicestack

  • servicestack
CWE
CWE-347

Improper Verification of Cryptographic Signature