SUSE update for sssd

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

Update the affected package sssd to the latest version.

Vulnerable software versions

SUSE 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-LTSS - 15-SP3-ESPOS

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

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP3-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_realtime_extension:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP3-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP3-ESPOS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap_micro:5.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_enterprise_storage:7.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_server:4.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_proxy:4.2:*:*:*:*:*:*:*
• cpe:2.3:a:suse:sssd-common-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-common-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-winbind-idmap-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-winbind-idmap:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-tools-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-tools:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-proxy-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-proxy:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-krb5-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-krb5:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-ipa-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-ipa:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-dbus-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-dbus:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-ad-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-ad:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python3-sssd-config-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python3-sssd-config:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libsss_simpleifp0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libsss_simpleifp0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libsss_simpleifp-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libsss_nss_idmap-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libsss_idmap-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libsss_certmap-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libipa_hbac0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libipa_hbac0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libipa_hbac-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-ldap-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-ldap:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-krb5-common-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-krb5-common:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-common-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd-common:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:sssd:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libsss_nss_idmap0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libsss_nss_idmap0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libsss_idmap0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libsss_idmap0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libsss_certmap0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libsss_certmap0:*:*:*:*:*:suse_linux:*:*

External links

https://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.