Authentication bypass in SSSD



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-4254
CWE-ID CWE-90
Exploitation vector Network
Public exploit N/A
Vulnerable software
 SSSD
Web applications / Remote management & hosting panels

Vendor SSSD

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) LDAP injection

EUVDB-ID: #VU71473

Risk: High

CVSSv4.0: 8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-4254

CWE-ID: CWE-90 - Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to improper input validation in libsss_certmap functionality when validating data used in DLAP queries. A remote non-authenticated attacker can use a specially crafted certificate to bypass authentication process and gain control of the admin account, leading to full domain takeover.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SSSD: 1.15.3 - 2.3.0

CPE2.3 External links

https://bugzilla.redhat.com/show_bug.cgi?id=2149894


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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



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