Amazon Linux 2022 : rsync, rsync-daemon (ALAS2022-2022-148)

critical Nessus Plugin ID 166125

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Synopsis

The remote Amazon Linux 2022 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2022-2022-148 advisory.

A flaw was found in rsync that is triggered by a victim rsync user/client connecting to a malicious rsync server. The server can copy and overwrite arbitrary files in the client's rsync target directory and subdirectories. This flaw allows a malicious server, or in some cases, another attacker who performs a man-in-the-middle attack, to potentially overwrite sensitive files on the client machine, resulting in further exploitation. (CVE-2022-29154)

A security vulnerability was found in zlib. The flaw triggered a heap-based buffer in inflate in the inflate.c function via a large gzip header extra field. This flaw is only applicable in the call inflateGetHeader. (CVE-2022-37434)

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

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

Solution

Run 'dnf update rsync --releasever=2022.0.20221012' to update your system.

Plugin Details

Severity: Critical

ID: 166125

File Name: al2022_ALAS2022-2022-148.nasl

Version: 1.6

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 10/14/2022

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2022-37434

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:rsync-daemon, p-cpe:/a:amazon:linux:rsync-debuginfo, p-cpe:/a:amazon:linux:rsync, cpe:/o:amazon:linux:2022, p-cpe:/a:amazon:linux:rsync-debugsource

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/3/2022

Vulnerability Publication Date: 8/2/2022

Reference Information

CVE: CVE-2022-29154, CVE-2022-37434

IAVA: 2022-A-0304-S

Detections

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