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etcd Key name can be accessed via LeaseTimeToLive API

Low severity GitHub Reviewed Published May 11, 2023 in etcd-io/etcd • Updated Nov 11, 2023

Package

gomod github.com/etcd-io/etcd (Go)

Affected versions

< 3.4.26
>= 3.5.0, < 3.5.9

Patched versions

3.4.26
3.5.9

Description

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

References

@mitake mitake published to etcd-io/etcd May 11, 2023
Published by the National Vulnerability Database May 11, 2023
Published to the GitHub Advisory Database May 12, 2023
Reviewed May 12, 2023
Last updated Nov 11, 2023

Severity

Low

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS score

0.091%
(40th percentile)

Weaknesses

CVE ID

CVE-2023-32082

GHSA ID

GHSA-3p4g-rcw5-8298

Source code

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