CVE-2018-16838 — Improper Access Control in Sssd

CWE-284 — Improper Access ControlCWE-269 — Improper Privilege Management8 documents7 sources
Severity
5.4MEDIUMNVD
OSV7.5
EPSS
0.9%
top 24.02%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Fedoraproject SssdDebian SssdRedhat Enterprise Linux
Timeline
PublishedMar 25
Latest updateMay 13

Description

A flaw was found in sssd Group Policy Objects implementation. When the GPO is not readable by SSSD due to a too strict permission settings on the server side, SSSD will allow all authenticated users to login instead of denying access.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:NExploitability: 2.8 | Impact: 2.5

Affected Packages3 packages

▶debiandebian/sssd< sssd 2.2.0-1 (bookworm)
▶Debianfedoraproject/sssd< 2.2.0-1+3
▶Ubuntufedoraproject/sssd< 1.16.1-1ubuntu1.8+1

Also affects: Enterprise Linux 7.0

🔴Vulnerability Details

3
GHSA
GHSA-h2vj-4wwx-54q4: A flaw was found in sssd Group Policy Objects implementation↗2022-05-13
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OSV
sssd vulnerabilities↗2021-09-08
▶
OSV
CVE-2018-16838: A flaw was found in sssd Group Policy Objects implementation↗2019-03-25
▶

📋Vendor Advisories

3
Ubuntu
SSSD vulnerabilities↗2021-09-08
▶
Red Hat
sssd: improper implementation of GPOs due to too restrictive permissions↗2019-02-04
▶
Debian
CVE-2018-16838: sssd - A flaw was found in sssd Group Policy Objects implementation. When the GPO is no...↗2018
▶

💬Community

1
Bugzilla
CVE-2018-16838 sssd: improper implementation of GPOs due to too restrictive permissions↗2018-10-18
▶