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Amazon Linux 2023 : curl, curl-minimal, libcurl (ALAS2023-2024-606)

medium Nessus Plugin ID 194496

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Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2024-606 advisory.

 - This flaw allows a malicious HTTP server to set super cookies in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains. It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with `domain=co.UK` when the URL used a lower case hostname `curl.co.uk`, even though `co.uk` is listed as a PSL domain. (CVE-2023-46218)

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

Solution

Run 'dnf update curl --releasever 2023.4.20240429' to update your system.

See Also

https://alas.aws.amazon.com/AL2023/ALAS-2024-606.html

https://alas.aws.amazon.com/cve/html/CVE-2023-46218.html

https://alas.aws.amazon.com/faqs.html

Plugin Details

Severity: Medium

ID: 194496

File Name: al2023_ALAS2023-2024-606.nasl

Version: 1.1

Type: local

Agent: unix

Published: 4/29/2024

Updated: 4/30/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.3

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5

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

CVSS Score Source: CVE-2023-46218

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:curl, p-cpe:/a:amazon:linux:curl-debuginfo, p-cpe:/a:amazon:linux:curl-debugsource, p-cpe:/a:amazon:linux:curl-minimal, p-cpe:/a:amazon:linux:curl-minimal-debuginfo, p-cpe:/a:amazon:linux:libcurl, p-cpe:/a:amazon:linux:libcurl-debuginfo, p-cpe:/a:amazon:linux:libcurl-devel, p-cpe:/a:amazon:linux:libcurl-minimal, p-cpe:/a:amazon:linux:libcurl-minimal-debuginfo, cpe:/o:amazon:linux:2023

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: 4/25/2024

Vulnerability Publication Date: 12/7/2023

Reference Information

CVE: CVE-2023-46218

IAVA: 2023-A-0674-S