Amazon Linux 2 : cups-filters (ALAS-2024-2656)

medium Nessus Plugin ID 210097

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of cups-filters installed on the remote host is prior to 1.0.35-26. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2024-2656 advisory.

CUPS is a standards-based, open-source printing system, and `cups-browsed` contains network printing functionality including, but not limited to, auto-discovering print services and shared printers. `cups- browsed` binds to `INADDR_ANY:631`, causing it to trust any packet from any source, and can cause the `Get-Printer-Attributes` IPP request to an attacker controlled URL.

Due to the service binding to `*:631 ( INADDR_ANY )`, multiple bugs in `cups-browsed` can be exploited in sequence to introduce a malicious printer to the system. This chain of exploits ultimately enables an attacker to execute arbitrary commands remotely on the target machine without authentication when a print job is started. This poses a significant security risk over the network. Notably, this vulnerability is particularly concerning as it can be exploited from the public internet, potentially exposing a vast number of systems to remote attacks if their CUPS services are enabled. (CVE-2024-47176)

CUPS cups-browsed before 2.5b1 will send an HTTP POST request to an arbitrary destination and port in response to a single IPP UDP packet requesting a printer to be added, a different vulnerability than CVE-2024-47176. (The request is meant to probe the new printer but can be used to create DDoS amplification attacks.) (CVE-2024-47850)

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 'yum update cups-filters' to update your system.

Plugin Details

Severity: Medium

ID: 210097

File Name: al2_ALAS-2024-2656.nasl

Version: 1.4

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 11/1/2024

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: 4.5

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.4

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

CVSS Score Source: CVE-2024-47176

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.9

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:cups-filters-devel, p-cpe:/a:amazon:linux:cups-filters, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:cups-filters-debuginfo, p-cpe:/a:amazon:linux:cups-filters-libs

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: 10/24/2024

Vulnerability Publication Date: 9/26/2024

Exploitable With

Metasploit (CUPS IPP Attributes LAN Remote Code Execution)

Reference Information

CVE: CVE-2024-47176, CVE-2024-47850

Detections

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