Detections
Analytics

Amazon Linux 2 : python-virtualenv (ALAS-2020-1413)

critical Nessus Plugin ID 135931

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Synopsis

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

Description

urllib3 before version 1.23 does not remove the Authorization HTTP header when following a cross-origin redirect (i.e., a redirect that differs in host, port, or scheme). This can allow for credentials in the Authorization header to be exposed to unintended hosts or transmitted in cleartext. (CVE-2018-20060)

In the urllib3 library through 1.24.1 for Python, CRLF injection is possible if the attacker controls the request parameter.
(CVE-2019-11236)

A credentials-exposure flaw was found in python-requests, where if a request with authentication is redirected (302) from an HTTPS endpoint to an HTTP endpoint on the same host, the Authorization header is not stripped and the credentials can be read in plain text. A man-in-the-middle attacker could exploit this flaw to obtain a user's valid credentials. (CVE-2018-18074)

Solution

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

See Also

https://alas.aws.amazon.com/AL2/ALAS-2020-1413.html

Plugin Details

Severity: Critical

ID: 135931

File Name: al2_ALAS-2020-1413.nasl

Version: 1.2

Type: local

Agent: unix

Published: 4/24/2020

Updated: 4/28/2020

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:python-virtualenv, cpe:/o:amazon:linux:2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/23/2020

Vulnerability Publication Date: 10/9/2018

Reference Information

CVE: CVE-2018-18074, CVE-2018-20060, CVE-2019-11236

ALAS: 2020-1413