CVE Vulnerability

CVE-2021-29455

Grassroot Platform is an application to make it faster, cheaper and easier to persistently organize and mobilize people in low-income communities. Grassroot Platform before master deployment as of 2021-04-16 did not properly verify the signature of JSON Web Tokens when refreshing an existing JWT. This allows to forge a valid JWT. The problem has been patched in version 1.3.1 by deprecating the JWT refresh function, which was an overdue deprecation regardless (the "refresh" flow is no longer used).

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

5.3 /10

CVSS v3.0 : 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

References
Link Resource
https://github.com/grassrootza/grassroot-platform/ Product Third Party Advisory
https://github.com/grassrootza/grassroot-platform/commit/a2e6e885f8183a066d938cf909fd813a7af7d67f Patch Third Party Advisory
https://github.com/grassrootza/grassroot-platform/security/advisories/GHSA-f65w-6xw8-6734 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:grassroot:grassroot_platform:*:*:*:*:*:*:*:*
Information

Published : 2021-04-19 07:15

Updated : 2021-04-28 01:49

NVD link : CVE-2021-29455

Mitre link : CVE-2021-29455

Products Affected
No products.
CWE
CWE-347

Improper Verification of Cryptographic Signature