Command Injection in System Security Services Daemon (SSSD) - CVE-2021-3621

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Main Vulnerability Database Vulnerabilities #VU56000

Command Injection in System Security Services Daemon (SSSD) - CVE-2021-3621

Published: August 20, 2021 / Updated: October 19, 2021


Vulnerability identifier: #VU56000
CSH Severity: Medium
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-3621
CWE-ID: CWE-77
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper input validation in the sssctl command within the logs-fetch and cache-expire subcommands. An attacker can trick the root user into running a specially crafted sssctl command, such as via sudo, and execute arbitrary code with root privileges.


Affected software

System Security Services Daemon (SSSD)
Amazon Linux AMI
Gentoo Linux
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, big endian
CentOS
Red Hat Enterprise Linux for Power, little endian
Anolis OS
Red Hat CodeReady Linux Builder for IBM z Systems
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux Server - TUS
Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support
Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
SUSE OpenStack Cloud Crowbar
SUSE OpenStack Cloud
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise Server
SUSE Linux Enterprise Software Development Kit
SUSE Linux Enterprise Module for Basesystem
SUSE Linux Enterprise Desktop
SUSE Linux Enterprise Server for SAP Applications
SUSE Linux Enterprise High Performance Computing
openSUSE Leap
Ubuntu
openEuler
Fedora
imgbased (Red Hat package)
redhat-release-virtualization-host (Red Hat package)
redhat-virtualization-host (Red Hat package)
sssd (Ubuntu package)
sssd-krb5-common
libsss_idmap0
sssd-krb5-common-debuginfo
sssd-krb5-debuginfo
sssd-ldap
sssd-ldap-debuginfo
sssd-proxy
sssd-proxy-debuginfo
sssd-tools
sssd-tools-debuginfo
libsss_nss_idmap-devel
libsss_idmap-devel
libsss_nss_idmap0
libsss_idmap0-debuginfo
libsss_nss_idmap0-debuginfo
sssd-krb5
sssd-ipa-debuginfo
sssd-ipa
sssd-debugsource
sssd-debuginfo-32bit
sssd-debuginfo
sssd-dbus-debuginfo
sssd-dbus
sssd-ad-debuginfo
sssd-ad
sssd-32bit
sssd
python-sssd-config-debuginfo
python-sssd-config
libsss_simpleifp0-debuginfo
libsss_simpleifp0
libipa_hbac0
libipa_hbac0-debuginfo
libsss_certmap0
libsss_certmap0-debuginfo
libipa_hbac-devel
sssd-winbind-idmap-debuginfo
sssd-winbind-idmap
python3-sssd-config-debuginfo
python3-sssd-config
libsss_simpleifp-devel
libsss_certmap-devel
sssd-common-debuginfo
sssd-common
sssd (Red Hat package)
python2-sssd
python3-sssd
sssd-devel
sssd-help
python3-sssdconfig
python3-libipa_hbac
sssd-common-pac
sssd-client
python3-sss-murmur
python3-sss
python3-libsss_nss_idmap
libipa_hbac
libsss_autofs
libsss_certmap
libsss_idmap
libsss_nss_idmap
libsss_simpleifp
libsss_sudo
sssd-kcm
sssd-libwbclient
sssd-nfs-idmap
sssd-polkit-rules
sys-auth/sssd
python3-sss_nss_idmap-debuginfo
python3-sss_nss_idmap
python3-sss-murmur-debuginfo
python3-ipa_hbac-debuginfo
python3-ipa_hbac
libnfsidmap-sss-debuginfo
libnfsidmap-sss
sssd-kcm-debuginfo
rhel-- (Red Hat package)
Red Hat Virtualization
Red Hat Virtualization Host
CTPView

How to mitigate CVE-2021-3621

Install update from vendor's website.

System Security Services Daemon (SSSD) - update to 2.6.0
imgbased (Red Hat package) - update to 1.2.23-1.el8ev
redhat-release-virtualization-host (Red Hat package) - addressed in versions 4.3.18-1.el7ev, 4.4.7-4.el8ev
redhat-virtualization-host (Red Hat package) - addressed in versions 4.3.18-20210903.0.el7_9, 4.4.7-20210804.0.el8_4
sssd (Ubuntu package) - addressed in versions 1.16.1-1ubuntu1.8, 2.2.3-3ubuntu0.7, 2.4.0-1ubuntu6.1
sssd-krb5-common - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
libsss_idmap0 - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-krb5-common-debuginfo - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-krb5-debuginfo - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-ldap - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-ldap-debuginfo - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-proxy - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-proxy-debuginfo - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-tools - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-tools-debuginfo - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
libsss_nss_idmap-devel - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
libsss_idmap-devel - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
libsss_nss_idmap0 - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
libsss_idmap0-debuginfo - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
libsss_nss_idmap0-debuginfo - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-krb5 - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-ipa-debuginfo - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-ipa - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-debugsource - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-debuginfo-32bit - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4
sssd-debuginfo - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4
sssd-dbus-debuginfo - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-dbus - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-ad-debuginfo - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-ad - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-32bit - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4
sssd - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
python-sssd-config-debuginfo - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4
python-sssd-config - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4
libsss_simpleifp0-debuginfo - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
libsss_simpleifp0 - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
libipa_hbac0 - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
libipa_hbac0-debuginfo - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
libsss_certmap0 - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
libsss_certmap0-debuginfo - addressed in versions 1.16.1-4.40.1, 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
libipa_hbac-devel - addressed in versions 1.16.1-7.22.4, 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-winbind-idmap-debuginfo - addressed in versions 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-winbind-idmap - addressed in versions 1.16.1-23.11.1, 2.5.2-150400.4.5.14
python3-sssd-config-debuginfo - addressed in versions 1.16.1-23.11.1, 2.5.2-150400.4.5.14
python3-sssd-config - addressed in versions 1.16.1-23.11.1, 2.5.2-150400.4.5.14
libsss_simpleifp-devel - addressed in versions 1.16.1-23.11.1, 2.5.2-150400.4.5.14
libsss_certmap-devel - addressed in versions 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-common-debuginfo - addressed in versions 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd-common - addressed in versions 1.16.1-23.11.1, 2.5.2-150400.4.5.14
sssd - update to 1.16.4-21.27
sssd (Red Hat package) - addressed in versions 1.16.5-10.el7_9.10, 2.2.0-19.el8_1.2, 2.2.3-20.el8_2.1, 2.4.0-9.el8_4.2
sssd - update to 2.2.2-10
python2-sssd - update to 2.2.2-10
python3-sssd - update to 2.2.2-10
sssd-devel - update to 2.2.2-10
sssd-debuginfo - update to 2.2.2-10
sssd-debugsource - update to 2.2.2-10
sssd-help - update to 2.2.2-10
python3-sssdconfig - addressed in versions 2.2.3-20, 2.4.0-9
python3-libipa_hbac - addressed in versions 2.2.3-20, 2.4.0-9
sssd-common-pac - addressed in versions 2.2.3-20, 2.4.0-9
sssd-common - addressed in versions 2.2.3-20, 2.4.0-9
sssd-client - addressed in versions 2.2.3-20, 2.4.0-9
sssd-ad - addressed in versions 2.2.3-20, 2.4.0-9
sssd - addressed in versions 2.2.3-20, 2.4.0-9
python3-sss-murmur - addressed in versions 2.2.3-20, 2.4.0-9
python3-sss - addressed in versions 2.2.3-20, 2.4.0-9
python3-libsss_nss_idmap - addressed in versions 2.2.3-20, 2.4.0-9
sssd-dbus - addressed in versions 2.2.3-20, 2.4.0-9
libipa_hbac - addressed in versions 2.2.3-20, 2.4.0-9
libsss_autofs - addressed in versions 2.2.3-20, 2.4.0-9
libsss_certmap - addressed in versions 2.2.3-20, 2.4.0-9
libsss_idmap - addressed in versions 2.2.3-20, 2.4.0-9
libsss_nss_idmap - addressed in versions 2.2.3-20, 2.4.0-9
libsss_simpleifp - addressed in versions 2.2.3-20, 2.4.0-9
libsss_sudo - addressed in versions 2.2.3-20, 2.4.0-9
sssd-ipa - addressed in versions 2.2.3-20, 2.4.0-9
sssd-kcm - addressed in versions 2.2.3-20, 2.4.0-9
sssd-krb5 - addressed in versions 2.2.3-20, 2.4.0-9
sssd-krb5-common - addressed in versions 2.2.3-20, 2.4.0-9
sssd-ldap - addressed in versions 2.2.3-20, 2.4.0-9
sssd-libwbclient - addressed in versions 2.2.3-20, 2.4.0-9
sssd-nfs-idmap - addressed in versions 2.2.3-20, 2.4.0-9
sssd-polkit-rules - addressed in versions 2.2.3-20, 2.4.0-9
sssd-proxy - addressed in versions 2.2.3-20, 2.4.0-9
sssd-tools - addressed in versions 2.2.3-20, 2.4.0-9
sssd-winbind-idmap - addressed in versions 2.2.3-20, 2.4.0-9
sssd - addressed in versions 2.5.1-2.fc33, 2.5.2-2.fc34
sys-auth/sssd - update to 2.5.2-r1
python3-sss_nss_idmap-debuginfo - update to 2.5.2-150400.4.5.14
python3-sss_nss_idmap - update to 2.5.2-150400.4.5.14
python3-sss-murmur-debuginfo - update to 2.5.2-150400.4.5.14
python3-sss-murmur - update to 2.5.2-150400.4.5.14
python3-ipa_hbac-debuginfo - update to 2.5.2-150400.4.5.14
python3-ipa_hbac - update to 2.5.2-150400.4.5.14
libnfsidmap-sss-debuginfo - update to 2.5.2-150400.4.5.14
libnfsidmap-sss - update to 2.5.2-150400.4.5.14
sssd-kcm-debuginfo - update to 2.5.2-150400.4.5.14
sssd-kcm - update to 2.5.2-150400.4.5.14
rhel-- (Red Hat package) - addressed in versions 8.1/s390x/9193/sssd/2.2.0-19.el8_1.2/src/fd431d51/package">sssd-2.2.0-19.el8_1.2, 8.1/x86_64/9181/sssd/2.2.0-19.el8_1.2/src/fd431d51/package">sssd-2.2.0-19.el8_1.2, 8.1/x86_64/9407/sssd/2.2.0-19.el8_1.2/src/fd431d51/package">sssd-2.2.0-19.el8_1.2
CTPView - update to 9.1R5

External References

Related Security Bulletins