Security Bulletin
This security bulletin contains one high risk vulnerability.
EUVDB-ID: #VU71473
Risk: High
CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-4254
CWE-ID:
CWE-90 - Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
Exploit availability: No
DescriptionThe 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.
Update the affected package sssd to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Server for SAP: 15-SP3
SUSE Linux Enterprise Server: 15-SP3-LTSS
SUSE Linux Enterprise Realtime Extension: 15-SP3
SUSE Linux Enterprise High Performance Computing: 15-SP3-ESPOS - 15-SP3-LTSS
openSUSE Leap Micro: 5.2
SUSE Enterprise Storage: 7.1
SUSE Manager Retail Branch Server: 4.2
SUSE Linux Enterprise Micro: 5.1 - 5.2
SUSE Manager Server: 4.2
SUSE Manager Proxy: 4.2
sssd-common-32bit-debuginfo: before 1.16.1-150300.23.37.1
sssd-common-32bit: before 1.16.1-150300.23.37.1
sssd-winbind-idmap-debuginfo: before 1.16.1-150300.23.37.1
sssd-winbind-idmap: before 1.16.1-150300.23.37.1
sssd-tools-debuginfo: before 1.16.1-150300.23.37.1
sssd-tools: before 1.16.1-150300.23.37.1
sssd-proxy-debuginfo: before 1.16.1-150300.23.37.1
sssd-proxy: before 1.16.1-150300.23.37.1
sssd-krb5-debuginfo: before 1.16.1-150300.23.37.1
sssd-krb5: before 1.16.1-150300.23.37.1
sssd-ipa-debuginfo: before 1.16.1-150300.23.37.1
sssd-ipa: before 1.16.1-150300.23.37.1
sssd-dbus-debuginfo: before 1.16.1-150300.23.37.1
sssd-dbus: before 1.16.1-150300.23.37.1
sssd-ad-debuginfo: before 1.16.1-150300.23.37.1
sssd-ad: before 1.16.1-150300.23.37.1
python3-sssd-config-debuginfo: before 1.16.1-150300.23.37.1
python3-sssd-config: before 1.16.1-150300.23.37.1
libsss_simpleifp0-debuginfo: before 1.16.1-150300.23.37.1
libsss_simpleifp0: before 1.16.1-150300.23.37.1
libsss_simpleifp-devel: before 1.16.1-150300.23.37.1
libsss_nss_idmap-devel: before 1.16.1-150300.23.37.1
libsss_idmap-devel: before 1.16.1-150300.23.37.1
libsss_certmap-devel: before 1.16.1-150300.23.37.1
libipa_hbac0-debuginfo: before 1.16.1-150300.23.37.1
libipa_hbac0: before 1.16.1-150300.23.37.1
libipa_hbac-devel: before 1.16.1-150300.23.37.1
sssd-ldap-debuginfo: before 1.16.1-150300.23.37.1
sssd-ldap: before 1.16.1-150300.23.37.1
sssd-krb5-common-debuginfo: before 1.16.1-150300.23.37.1
sssd-krb5-common: before 1.16.1-150300.23.37.1
sssd-debugsource: before 1.16.1-150300.23.37.1
sssd-common-debuginfo: before 1.16.1-150300.23.37.1
sssd-common: before 1.16.1-150300.23.37.1
sssd: before 1.16.1-150300.23.37.1
libsss_nss_idmap0-debuginfo: before 1.16.1-150300.23.37.1
libsss_nss_idmap0: before 1.16.1-150300.23.37.1
libsss_idmap0-debuginfo: before 1.16.1-150300.23.37.1
libsss_idmap0: before 1.16.1-150300.23.37.1
libsss_certmap0-debuginfo: before 1.16.1-150300.23.37.1
libsss_certmap0: before 1.16.1-150300.23.37.1
External linkshttp://www.suse.com/support/update/announcement/2023/suse-su-20230204-1/
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.