Ansible Tower 3.3.x < 3.3.6 / 3.4.x < 3.4.4 / 3.5.x < 3.5.1 CRLF Vulnerability

medium Nessus Plugin ID 127127
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


An IT monitoring application running on the remote host is affected by a Unauthorized Access vulnerability.


The version of Ansible Tower running on the remote web server is 3.3.x prior to 3.3.6, 3.4.x prior to 3.4.4, or 3.5.x prior to 3.5.1. It is, therefore, affected by a CRLF injection vulnerability in the urllib2 library of python 2.x through 2.7.16 & python 3.x through 3.7.3.


Upgrade to Ansible Tower version 3.3.6, 3.4.4, 3.5.1 or later.

See Also

Plugin Details

Severity: Medium

ID: 127127

File Name: ansible_tower_3_5_1.nasl

Version: 1.3

Type: combined

Family: CGI abuses

Published: 8/5/2019

Updated: 12/6/2019

Dependencies: ansible_tower_installed.nbin, ansible_tower_detect.nbin

Risk Information

CVSS Score Source: CVE-2019-9740


Risk Factor: Low

Score: 3


Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C


Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

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

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

Vulnerability Information

CPE: cpe:2.3:a:ansible:tower:*:*:*:*:*:*:*:*

Exploit Ease: No known exploits are available

Patch Publication Date: 4/10/2019

Vulnerability Publication Date: 3/13/2019

Reference Information

CVE: CVE-2019-9740

BID: 107466