Security restrictions bypass in System Security Services Daemon (SSSD) - CVE-2018-16838

 

Security restrictions bypass in System Security Services Daemon (SSSD) - CVE-2018-16838

Published: February 5, 2019 / Updated: May 9, 2023


Vulnerability identifier: #VU17376
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-16838
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: SSSD
Affected software:
System Security Services Daemon (SSSD)

Detailed vulnerability description

The vulnerability allows a remote authenticated attacker to bypass security restrictions on the system.

The vulnerability exists due to a flaw 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. A remote attacker can bypass security restrictions.


How to mitigate CVE-2018-16838

Install update from vendor's website.

Sources