etcd Key name can be accessed via LeaseTimeToLive API
### Impact LeaseTimeToLive API allows access to key names (not value) associated to a lease when `Keys` parameter is true, even a user doesn't have read permission to the keys. The impact is limited to a cluster which enables auth (RBAC). ### Patches < v3.4.26 and < v3.5.9 are affected. ### Workarounds No. ### Reporter Yoni Rozenshein
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2023-32082US | medium4.3 | — | ||
etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.4.26 and 3.5.9, the LeaseTimeToLive API allows access to key names (not value) assoc… | ||||
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references
External citations — patches, advisories, analysis.
- https://github.com/etcd-io/etcdPACKAGE
- https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.4.mdWEB
- https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.5.mdWEB
- https://github.com/etcd-io/etcd/pull/15656WEB
- https://github.com/etcd-io/etcd/security/advisories/GHSA-3p4g-rcw5-8298WEB
- https://nvd.nist.gov/vuln/detail/CVE-2023-32082ADVISORY
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