CVE-2021-4034

A local privilege escalation vulnerability was found on polkit's pkexec utility. The pkexec application is a setuid tool designed to allow unprivileged users to run commands as privileged users according predefined policies. The current version of pkexec doesn't handle the calling parameters count correctly and ends trying to execute environment variables as commands. An attacker can leverage this by crafting environment variables in such a way it'll induce pkexec to execute arbitrary code. When successfully executed the attack can cause a local privilege escalation given unprivileged users administrative rights on the target machine.
Configurations

Configuration 1 (hide)

cpe:2.3:a:polkit_project:polkit:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:a:redhat:enterprise_linux_server_update_services_for_sap_solutions:7.6:*:*:*:*:*:*:*
cpe:2.3:a:redhat:enterprise_linux_server_update_services_for_sap_solutions:7.7:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.1:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:8.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.1:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:*

Configuration 4 (hide)

OR cpe:2.3:a:suse:enterprise_storage:7.0:*:*:*:*:*:*:*
cpe:2.3:a:suse:linux_enterprise_high_performance_computing:15.0:sp2:*:*:-:*:*:*
cpe:2.3:a:suse:manager_proxy:4.1:*:*:*:*:*:*:*
cpe:2.3:a:suse:manager_server:4.1:*:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_desktop:15:sp2:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_server:15:sp2:*:*:*:-:*:*
cpe:2.3:o:suse:linux_enterprise_server:15:sp2:*:*:*:sap:*:*
cpe:2.3:o:suse:linux_enterprise_workstation_extension:12:sp5:*:*:*:*:*:*

Configuration 5 (hide)

OR cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*

Configuration 6 (hide)

cpe:2.3:a:siemens:sinumerik_edge:*:*:*:*:*:*:*:*

Configuration 7 (hide)

AND
cpe:2.3:o:siemens:scalance_lpe9403_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:scalance_lpe9403:-:*:*:*:*:*:*:*

Configuration 8 (hide)

OR cpe:2.3:a:starwindsoftware:command_center:1.0:update3_build5871:*:*:*:*:*:*
cpe:2.3:a:starwindsoftware:starwind_hyperconverged_appliance:-:*:*:*:*:*:*:*
cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build14338:*:*:*:*:*:*

History

No history.

Information

Published : 2022-01-28 20:15

Updated : 2024-06-28 14:14


NVD link : CVE-2021-4034

Mitre link : CVE-2021-4034

CVE.ORG link : CVE-2021-4034


JSON object : View

Products Affected

suse

  • linux_enterprise_desktop
  • linux_enterprise_high_performance_computing
  • manager_proxy
  • linux_enterprise_workstation_extension
  • linux_enterprise_server
  • enterprise_storage
  • manager_server

redhat

  • enterprise_linux_desktop
  • enterprise_linux_eus
  • enterprise_linux_for_power_little_endian_eus
  • enterprise_linux_server_tus
  • enterprise_linux_for_ibm_z_systems
  • enterprise_linux_server_aus
  • enterprise_linux_for_scientific_computing
  • enterprise_linux_server
  • enterprise_linux
  • enterprise_linux_server_update_services_for_sap_solutions
  • enterprise_linux_workstation
  • enterprise_linux_for_power_big_endian
  • enterprise_linux_for_ibm_z_systems_eus
  • enterprise_linux_server_eus
  • enterprise_linux_for_power_little_endian

siemens

  • sinumerik_edge
  • scalance_lpe9403
  • scalance_lpe9403_firmware

polkit_project

  • polkit

oracle

  • http_server
  • zfs_storage_appliance_kit

starwindsoftware

  • command_center
  • starwind_virtual_san
  • starwind_hyperconverged_appliance

canonical

  • ubuntu_linux
CWE
CWE-125

Out-of-bounds Read

CWE-787

Out-of-bounds Write