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Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS : rsync vulnerabilities (USN-5921-1)

high Nessus Plugin ID 172126

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-5921-1 advisory.

 Koen van Hove discovered that the rsync client incorrectly validated filenames returned by servers. If a user or automated system were tricked into connecting to a malicious server, a remote attacker could use this issue to write arbitrary files, and possibly escalate privileges.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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

Solution

Update the affected rsync package.

See Also

https://ubuntu.com/security/notices/USN-5921-1

Plugin Details

Severity: High

ID: 172126

File Name: ubuntu_USN-5921-1.nasl

Version: 1.4

Type: local

Agent: unix

Published: 3/6/2023

Updated: 8/27/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.6

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

CVSS Score Source: CVE-2022-29154

CVSS v3

Risk Factor: High

Base Score: 7.4

Temporal Score: 6.7

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:rsync, cpe:/o:canonical:ubuntu_linux:22.04:-:lts

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/6/2023

Vulnerability Publication Date: 8/2/2022

Reference Information

CVE: CVE-2022-29154

USN: 5921-1