CVE-2018-16859

Execution of Ansible playbooks on Windows platforms with PowerShell ScriptBlock logging and Module logging enabled can allow for 'become' passwords to appear in EventLogs in plaintext. A local user with administrator privileges on the machine can view these logs and discover the plaintext password. Ansible Engine 2.8 and older are believed to be vulnerable.

• CWE-532
• CWE-532

• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00021.html
• http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00077.html
• http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00020.html
• http://www.securityfocus.com/bid/106004Third Party Advisory, VDB Entry
• https://access.redhat.com/errata/RHSA-2018:3770Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:3771Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:3772Issue Tracking, Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:3773Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16859Issue Tracking, Vendor Advisory
• https://github.com/ansible/ansible/pull/49142Patch, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00021.html
• http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00077.html
• http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00020.html
• http://www.securityfocus.com/bid/106004Third Party Advisory, VDB Entry
• https://access.redhat.com/errata/RHSA-2018:3770Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:3771Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:3772Issue Tracking, Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:3773Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16859Issue Tracking, Vendor Advisory
• https://github.com/ansible/ansible/pull/49142Patch, Third Party Advisory

Published

Nov 29, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2018-16853Samba from version 4.7.0 has a vulnerability that allows a u…7.5
• CVE-2018-16854A flaw was found in moodle versions 3.5 to 3.5.2, 3.4 to 3.4…6.5
• CVE-2018-16855An issue has been found in PowerDNS Recursor before version …7.5
• CVE-2018-16856In a default Red Hat Openstack Platform Director installatio…5.5
• CVE-2018-16857Samba from version 4.9.0 and before version 4.9.3 that have …7.4
• CVE-2018-16858It was found that libreoffice before versions 6.0.7 and 6.1.…7.8
• CVE-2018-1686IBM Maximo Asset Management 7.6 through 7.6.3 is vulnerable …5.4
• CVE-2018-16860A flaw was found in samba's Heimdal KDC implementation, vers…7.5
• CVE-2018-16861A cross-site scripting (XSS) flaw was found in the foreman c…7.6
• CVE-2018-16862A security flaw was found in the Linux kernel in a way that …5.3
• CVE-2018-16863It was found that RHSA-2018:2918 did not fully fix CVE-2018-…7.3
• CVE-2018-16864An allocation of memory without limits, that could result in…7.8