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Amazon Linux 2 : python-rsa (ALAS-2023-2150)

medium Nessus Plugin ID 178495

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Synopsis

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

Description

It is, therefore, affected by a vulnerability as referenced in the ALAS2-2023-2150 advisory.

 - It was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption API to decrypt parts of the cipher text encrypted with RSA. (CVE-2020-25658)

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

Solution

Run 'yum update python-rsa' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2023-2150.html

https://alas.aws.amazon.com/cve/html/CVE-2020-25658.html

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

Plugin Details

Severity: Medium

ID: 178495

File Name: al2_ALAS-2023-2150.nasl

Version: 1.1

Type: local

Agent: unix

Published: 7/20/2023

Updated: 7/20/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

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

CVSS Score Source: CVE-2020-25658

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.3

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:python2-rsa, p-cpe:/a:amazon:linux:python3-rsa, cpe:/o:amazon:linux:2

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: 7/17/2023

Vulnerability Publication Date: 11/12/2020

Reference Information

CVE: CVE-2020-25658