#VU76971 Information disclosure in etcd - CVE-2023-32082

Vulnerability identifier: #VU76971

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-32082

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
etcd
Server applications / Database software

Vendor: etcd-io

Description

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the LeaseTimeToLive API. A remote user can gain unauthorized access to key names associated to a lease when "Keys" parameter is true.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

etcd: 3.0.0 - 3.5.8

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External links
https://github.com/etcd-io/etcd/security/advisories/GHSA-3p4g-rcw5-8298
https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.5.md
https://github.com/etcd-io/etcd/pull/15656
https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.4.md

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.