Ubuntu 18.04 ESM / 20.04 ESM / 22.04 ESM / 23.04 : etcd vulnerability (USN-6189-1)

critical Nessus Plugin ID 177696


The remote Ubuntu host is missing a security update.


The remote Ubuntu 22.10 / 23.04 host has packages installed that are affected by a vulnerability as referenced in the USN-6189-1 advisory.

- Authentication vulnerability found in Etcd-io v.3.4.10 allows remote attackers to escalate privileges via the debug function. (CVE-2021-28235)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Update the affected packages.

See Also


Plugin Details

Severity: Critical

ID: 177696

File Name: ubuntu_USN-6189-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 6/28/2023

Updated: 10/16/2023

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information


Risk Factor: Medium

Score: 6.7


Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2021-28235


Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:golang-etcd-server-dev, p-cpe:/a:canonical:ubuntu_linux:etcd-client, p-cpe:/a:canonical:ubuntu_linux:etcd-server, cpe:/o:canonical:ubuntu_linux:22.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:etcd, cpe:/o:canonical:ubuntu_linux:23.04, cpe:/o:canonical:ubuntu_linux:18.04:-:esm, cpe:/o:canonical:ubuntu_linux:20.04:-:esm

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Ease: No known exploits are available

Patch Publication Date: 6/28/2023

Vulnerability Publication Date: 4/4/2023

Reference Information

CVE: CVE-2021-28235

USN: 6189-1