GHSA-q7c8-gfjh-8v4p
Free5gc NRF is vulnerable to scope validation bypass via maliciously crafted targetNF value
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Go | github.com/free5gc/nrf | < 1.4.1 | 1.4.1 |
Details
As written in the advisory (Markdown source, shown as plain text).
An issue was discovered in Free5gc NRF 1.4.0. In the access-token generation logic of free5GC, the AccessTokenScopeCheck() function in file internal/sbi/processor/access_token.go bypasses all scope validation when the attacker uses a crafted targetNF value. This allows attackers to obtain an access token with any arbitrary scope.
References
External links from the advisory. They lead to third-party sites.