CVE-2023-22463
KubePi allows malicious actor to login with a forged JWT token via Hardcoded Jwtsigkeys
Impact
### Summary The jwt authentication function of kubepi <= v1.6.2 uses hard-coded Jwtsigkeys, resulting in the same Jwtsigkeys for all online projects. This means that an attacker can forge any jwt token to take over the administrator account of any online project. ### Details [`session.go`](https://github.com/KubeOperator/KubePi/blob/da784f5532ea2495b92708cacb32703bff3a45a3/internal/api/v1/session/session.go#L35), the use of hard-coded JwtSigKey allows an attacker to use this value to forge jwt tokens arbitrarily. The JwtSigKey is confidential and should not be hard-coded in the code. ```golang var JwtSigKey = []byte("signature_hmac_secret_shared_key") var jwtMaxAge = 10 * time.Minute type Handler struct { userService user.Service roleService role.Service clusterService cluster.Service rolebindingService rolebinding.Service ldapService ldap.Service jwtSigner *jwt.Signer } ``` ### Affected Version <= v1.6.2 ### Patches The vulnerability has been fixed in [v1.6.3](https://github.com/KubeOperator/KubePi/releases/tag/v1.6.3). https://github.com/KubeOperator/KubePi/commit/3be58b8df5bc05d2343c30371dd5fcf6a9fbbf8b : JWT key can be specified in app.yml, if leave it blank a random key will be used. ### Workarounds It is recommended to upgrade the version to [v1.6.3](https://github.com/KubeOperator/KubePi/releases/tag/v1.6.3). ### For more information If you have any questions or comments about this advisory, please [open an issue](https://github.com/KubeOperator/KubePi/issues).
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/KubeOperator/kubepi | <= 1.6.2 | 1.6.3 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Fit2cloud | Kubepi | before 1.6.3 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/KubeOperator/KubePi/blob/da784f5532ea2495b92708cacb32703bff3a45a3/internal/api/v1/session/session.go#L35
- https://github.com/KubeOperator/KubePi/commit/3be58b8df5bc05d2343c30371dd5fcf6a9fbbf8b
- https://github.com/KubeOperator/KubePi/releases/tag/v1.6.3
- https://github.com/KubeOperator/KubePi/security/advisories/GHSA-vjhf-8vqx-vqpq
- https://github.com/advisories/GHSA-vjhf-8vqx-vqpq
- https://nvd.nist.gov/vuln/detail/CVE-2023-22463