CVE-2018-16859: red hat ansible
Vulnerability summary
CVE-2018-16859 is a medium (CVSS 4.4) vulnerability in red hat ansible. EPSS estimates a 0.54% chance of exploitation in the next 30 days, higher than 45.4% of scored vulnerabilities.
Not severe (CVSS 4.2, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 10 · Related 10Timeline
- 29-11-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
7 scores · 5 sources · 3 versions- CVE.orgCNA4.2MediumCVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:NDiffers
- OSV · AlpineEcosystem advisory · calculated4.4MediumCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
- OSV · PypiEcosystem advisory · calculated4.4MediumCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
- OSV · Red hatEcosystem advisory · calculated4.2MediumCVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:NDiffers
EPSS trend
Probability
0.54%
Chance of exploitation in the next 30 days
Percentile
45%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.54% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, administrative account, user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat3 products
- ansible_engine< 2.5.13 | ≥ 2.6.0, < 2.6.10 | ≥ 2.7.0, < 2.7.4 | ≥ 2.7.5, ≤ 2.8
- ansible< 0:2.5.13-1.el7ae | < 0:2.6.10-1.el7ae | < 0:2.7.4-1.el7ae
- ansible-doc< 0:2.5.13-1.el7ae
Alpine1 product
- ansible< 2.7.3-r0
PyPI1 product
- ansible≥ 2.7.0a1, < 2.7.3 | < 2.5.12 | ≥ 2.6.0a1, < 2.6.9 | ≥ 2.6.0, < 2.6.10
Red hat1 product
- ansible2.8 and older
4 vendors · 6 products
References
28 links- bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16859X Refsource CONFIRMIssue TrackingVendor AdvisoryWEBREPORT
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00021.htmlVendor AdvisoryX Refsource SUSEWEB
- lists.opensuse.org/opensuse-security-announce/2019-06/msg00077.htmlVendor AdvisoryX Refsource SUSEWEB
- lists.opensuse.org/opensuse-security-announce/2019-08/msg00020.htmlVendor AdvisoryX Refsource SUSEWEB
Show all 28 references
- github.com/ansible/ansiblePACKAGE