Information disclosure in Ansible Engine and Ansible Tower

1) Information disclosure

EUVDB-ID: #VU29566

Risk: Low

CVSSv3.1: 2.2 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-1746

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to Ansible discloses the LDAP bind password to stdout or a log file if a playbook task is written using the bind_pw in the parameters field. A local user can gain unauthorized access to sensitive information on the system.

Successful exploitation of vulnerability requires that the ldap_attr and ldap_entry community modules are used.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Ansible: 2.7.0 - 2.9.6

Ansible Tower: 3.0 - 3.6.3

External links

http://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1746
http://github.com/ansible/ansible/pull/67866

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.