RHEL 7 : python-virtualenv (RHSA-2020:0851)

critical Nessus Plugin ID 134676

Synopsis

The remote Red Hat host is missing one or more security updates for python-virtualenv.

Description

The remote Redhat Enterprise Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:0851 advisory.

The virtualenv tool creates isolated Python environments. The virtualenv tool is a successor to workingenv, and an extension of virtual-python.

Security Fix(es):

* python-urllib3: Cross-host redirect does not remove Authorization header allow for credential exposure (CVE-2018-20060)

* python-urllib3: CRLF injection due to not encoding the '\r\n' sequence leading to possible attack on internal service (CVE-2019-11236)

* python-requests: Redirect from HTTPS to HTTP does not remove Authorization header (CVE-2018-18074)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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

Update the RHEL python-virtualenv package based on the guidance in RHSA-2020:0851.

See Also

http://www.nessus.org/u?b5e20ae0

https://access.redhat.com/security/updates/classification/#moderate

https://access.redhat.com/errata/RHSA-2020:0851

https://bugzilla.redhat.com/show_bug.cgi?id=1643829

https://bugzilla.redhat.com/show_bug.cgi?id=1649153

https://bugzilla.redhat.com/show_bug.cgi?id=1700824

Plugin Details

Severity: Critical

ID: 134676

File Name: redhat-RHSA-2020-0851.nasl

Version: 1.10

Type: local

Agent: unix

Published: 3/18/2020

Updated: 6/3/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2018-20060

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:redhat:enterprise_linux:python-virtualenv, cpe:/o:redhat:enterprise_linux:7

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/17/2020

Vulnerability Publication Date: 3/26/2018

Reference Information

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

BID: 108793, 108815

CWE: 113, 522

RHSA: 2020:0851