go-micro before 6.0.0 contains an improper certificate validation vulnerability that allows network attackers to impersonate services because the shared TLS helper sets InsecureSkipVerify to true by default. Man-in-the-middle attackers can present any certificate to intercept or modify gRPC transport, HTTP and RabbitMQ broker, and Consul or etcd registry traffic, including authentication tokens and credentials.
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
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Micro-Ecc_Project Micro-Ecc
cpe:2.3:a:micro-ecc_project:micro-ecc:*:*:*:*:*:*:*:*
|
— |
6.0.0
|
References 5
https://github.com/micro/go-micro
disclosure@vulncheck.com
https://github.com/micro/go-micro/blob/v5.30.0/internal/util/tls/tls.go#L43-L67
disclosure@vulncheck.com
https://github.com/micro/go-micro/commit/c7657f73f45cf839e643db10f28703eeab7299…
disclosure@vulncheck.com
https://github.com/micro/go-micro/issues/2963
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/go-micro-before-6.0.0-disabled-tls-certifi…
disclosure@vulncheck.com