CVE-2021-29455
Description
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).
References
CvssV3 impact
BaseSeverity | MEDIUM |
ConfidentialityImpact | NONE |
AttackComplexity | LOW |
Scope | UNCHANGED |
AttackVector | NETWORK |
AvailabilityImpact | NONE |
IntegrityImpact | LOW |
PrivilegesRequired | NONE |
BaseScore | 5.3 |
VectorString | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
Version | 3.1 |
UserInteraction | NONE |
CvssV2 impact
AccessComplexity | LOW |
ConfidentialityImpact | NONE |
AvailabilityImpact | NONE |
IntegrityImpact | PARTIAL |
BaseScore | 5 |
VectorString | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Version | 2.0 |
AccessVector | NETWORK |
Authentication | NONE |