漏洞信息
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Vulnerability Title
nebula-mesh - Host revocation is not durable: blocked/offboarded hosts can regain a valid certificate
Vulnerability Description
nebula-mesh is a self-hosted control plane for Slack Nebula mesh VPN. Prior to version 0.3.7, two related authorization gaps let a host that should no longer be trusted obtain a fresh, valid Nebula certificate, because nebula-mgmt does not re-evaluate revocation/authorization state at certificate issuance time — only at poll time. Firstly, the blocklist is not enforced at sign / re-enroll time. internal/api/enroll.go:128 calls caMgr.Sign(...) without consulting the blocklist. The blocklist is only checked in the poll path (internal/api/updates.go:57, fingerprintInBlocklist). The blocklist is keyed by certificate fingerprint (internal/store/sqlite.go), so a re-enrollment produces a new fingerprint that is not in the blocklist. Secondly, renewal does not re-validate operator / CA status. Auto-renewal at poll time (internal/api/updates.go:285-319, signHostCert) reads host.Name, host.Groups, host.NebulaIPs from the DB and re-signs without checking whether the owning operator is still active or the CA still valid. DisableOperator (internal/store/sqlite_operators.go) revokes sessions and API keys but does not retire the operator's CAs, and pki/signer.go checks only CA cert time-expiry, not operator/CA status. This issue has been patched in version 0.3.7.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Vulnerability Type
授权机制缺失
Vulnerability Title
Forgekeep nebula-mesh 授权问题漏洞
Vulnerability Description
Forgekeep nebula-mesh是Forgekeep团队的一款构建安全虚拟专用网络的组网工具。 Forgekeep nebula-mesh 0.3.7之前版本存在授权问题漏洞,该漏洞源于证书签发过程中未重新评估撤销和授权状态,阻止列表在注册/重新注册时未被检查,自动续订时也未验证操作员/CA状态,可能导致不应再受信任的主机获得新的有效Nebula证书。
CVSS Information
N/A
Vulnerability Type
N/A