Angel through 3.3.0 deserializes untrusted setAlgoMetrics payload using Kryo without class registration or allowlist validation. Unauthenticated network attackers can instantiate arbitrary classes or exhaust coordinator memory by sending crafted serialized objects to the master RPC endpoint.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 4
https://github.com/Angel-ML/angel
disclosure@vulncheck.com
https://github.com/Angel-ML/angel/blob/Release-3.3.0/angel-ps/core/src/main/jav…
disclosure@vulncheck.com
https://github.com/Angel-ML/angel/issues/1355
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/angel-through-3.3.0-unauthenticated-kryo-d…
disclosure@vulncheck.com