Vulnerability identifier: #VU17376

Vulnerability risk: Low

CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-16838

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SSSD
Web applications / Remote management & hosting panels

Vendor: SSSD

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.

Mitigation
Install update from vendor's website.

Vulnerable software versions

SSSD: All versions

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External links
http://bugzilla.redhat.com/show_bug.cgi?id=1640820

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.