CVE Vulnerability

CVE-2020-1733

A race condition flaw was found in Ansible Engine 2.7.17 and prior, 2.8.9 and prior, 2.9.6 and prior when running a playbook with an unprivileged become user. When Ansible needs to run a module with become user, the temporary directory is created in /var/tmp. This directory is created with "umask 77 && mkdir -p "; this operation does not fail if the directory already exists and is owned by another user. An attacker could take advantage to gain control of the become user as the target directory can be retrieved by iterating '/proc//cmdline'.

3.7 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 1.9 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.8 / Impact : 3.7

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope CHANGED

References
Link Resource
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1733 Issue Tracking Vendor Advisory
https://github.com/ansible/ansible/issues/67791 Exploit Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DKPA4KC3OJSUFASUYMG66HKJE7ADNGFW/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WQVOQD4VAIXXTVQAJKTN7NUGTJFE2PCB/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MRRYUU5ZBLPBXCYG6CFP35D64NP2UB2S/ Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/05/msg00005.html Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202006-11 Third Party Advisory
https://www.debian.org/security/2021/dsa-4950 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:redhat:cloudforms_management_engine:5.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ansible_tower:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ansible_tower:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ansible_tower:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ansible_tower:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ansible:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ansible:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ansible:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Information

Published : 2020-03-11 07:15

Updated : 2022-04-25 05:37

NVD link : CVE-2020-1733

Mitre link : CVE-2020-1733

Products Affected

Ansible

Redhat

CWE
CWE-362