Description
Agent Dart is an agent library built for Internet Computer for Dart and Flutter apps. Prior to version 1.0.0-dev.29, certificate verification in `lib/agent/certificate.dart` does not occur properly. During the delegation verification in the `_checkDelegation` function, the canister_ranges aren't verified. The impact of not checking the canister_ranges is that a subnet can sign canister responses in behalf of another subnet. The certificate’s timestamp, i.e /time path, is also not verified, meaning that the certificate effectively has no expiration time. Version 1.0.0-dev.29 implements appropriate certificate verification.
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality (Vulnerable System)
None
Integrity (Vulnerable System)
High
Availability (Vulnerable System)
None
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
Affected products
- AstroxNetwork / agent_dart< 1.0.0-dev.29 – < 1.0.0-dev.29
References
- VENDOR_ADVISORYhttps://github.com/AstroxNetwork/agent_dart/security/advisories/GHSA-fmj7-7gfw-64pg
- PATCHhttps://github.com/AstroxNetwork/agent_dart/commit/0d200686aabcd9313c7bc3e675cbdc82f6b775cf
- MISChttps://github.com/AstroxNetwork/agent_dart/blob/f50971dfae3f536c1720f0084f28afbcf5d99cb5/lib/agent/certificate.dart#L162
- MISChttps://github.com/AstroxNetwork/agent_dart/blob/main/lib/agent/certificate.dart