CVE-2021-45046

CVE Published 2021-12-14
Related CWE(s) CWE-917: Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')
Related Vendor(s) intel, fedoraproject, apache, siemens, sonicwall, debian
Related Product(s) e-car_operation_center, operation_scheduler, 6bk1602-0aa22-0tp0_firmware, logo\!_soft_comfort, fedora, vesys, industrial_edge_management, spectrum_power_4, gma-manager, siveillance_viewpoint, sipass_integrated, comos, energyip, datacenter_manager, computer_vision_annotation_tool, audio_development_kit, email_security, siveillance_identity, desigo_cc_info_center, energy_engage, head-end_system_universal_device_integration_system, tracealertserverplus, siguard_dsa, industrial_edge_management_hub, nx, system_debugger, mindsphere, 6bk1602-0aa52-0tp0_firmware, 6bk1602-0aa42-0tp0_firmware, solid_edge_harness_design, sppa-t3000_ses3000_firmware, desigo_cc_advanced_reports, sensor_solution_firmware_development_kit, debian_linux, teamcenter, opcenter_intelligence, secure_device_onboard, xpedition_package_integrator, siveillance_vantage, energyip_prepay, siveillance_control_pro, 6bk1602-0aa12-0tp0_firmware, sentron_powermanager, 6bk1602-0aa32-0tp0_firmware, log4j, oneapi, genomics_kernel_library, solid_edge_cam_pro, spectrum_power_7, system_studio, siveillance_command, xpedition_enterprise, navigator, captial, mendix
Exploitation Reported (CISA KEV) 2023-05-01
CVSS 3 Base Score 9.0 (CRITICAL)
CVSS 3 Attack Complexity HIGH
CVSS 3 Attack Vector NETWORK

It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-default configurations. This could allows attackers with control over Thread Context Map (MDC) input data when the logging configuration uses a non-default Pattern Layout with either a Context Lookup (for example, $${ctx:loginId}) or a Thread Context Map pattern (%X, %mdc, or %MDC) to craft malicious input data using a JNDI Lookup pattern resulting in an information leak and remote code execution in some environments and local code execution in all environments. Log4j 2.16.0 (Java 8) and 2.12.2 (Java 7) fix this issue by removing support for message lookup patterns and disabling JNDI functionality by default.

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Threat Reports Related to CVE-2021-45046

Report

Nation-state threat actor Mint Sandstorm refines tradecraft to attack high-value targets

This report from Microsoft Threat Intelligence describes a subset of activity related to the Mint Sandstorm actor. The campaign includes the theft ...

References