4.1.0 Release notes - 15 February 2021

Added

Core

• Negation logic for rules.

• Support for PCRE2 regular expressions in rules and decoders.

• New ruleset test module managed by the analysis daemon allowing testing sessions of rules and decoders.

• New upgrade module that provides simultaneous agent upgrades in a single node or cluster architecture. WPK upgrade functionality has been moved to this module.

• New task module that collects and manages all the upgrade tasks executed in the agents or managers.

• Let the time interval to detect that an agent got disconnected configurable. Deprecate parameter DISCON_TIME.

• Vulnerability Detector support for macOS.

• Capability to perform FIM on values in the Windows Registry.

API

• New endpoints to query and manage rootcheck data.

• New endpoint to check task status.

• New endpoints to run the logtest tool and delete a logtest session.

• debug2 mode for API log and improved debug mode.

AWS module

• Support for AWS load balancers logs: Application Load Balancer, Classic Load Balancer, and Network Load Balancer.

Framework

• New framework modules to use the logtest tool.

• Improved q parameter on rules, decoders, and cdb-lists modules to allow multiple nested fields.

Changed

Core

• Removed limit on the number of agents that a manager can support.

• Migration of rootcheck results to Wazuh DB to remove the files with the results of each agent.

• New mechanism to close RIDS files when agents are disconnected.

• Moved CA configuration section to verify WPK signatures from the active-response section to the agent-upgrade section.

• The ossec-logtest tool is deprecated and replaced by wazuh-logtest, which uses a new testing service integrated in Analysisd.

• Modified the error message to debug when multiple daemons attempt to remove an agent simultaneously.

• Replaced the error message with a warning when the agent fails to reach a module.

API

• The status parameter behavior in the DELETE /agents endpoint to enhance security.

• Allow agent upgrade endpoints to accept a list of agents, maximum 100 agents per request.

• Improved input validation regexes for names and array_names.

Framework

• Refactored framework to work with the new upgrade module.

• Refactored agent upgrade CLI to work with the new upgrade module. It distributes petitions in a clustered environment.

• Rule and decoder details structure to support PCRE2.

• Refactored framework to adapt agent status changes in wazuh.db.

• Improved the performance of AWS Config integration by removing alert fields with variables such as Instance ID in its name.

Fixed

Core

• An error in analysisd when getting the ossec group ID.

• Prevented FIM from reporting configuration error when patterns in settings match no files.

• The array parsing when building JSON alerts.

• Added Firefox ESR to the CPE helper to distinguish it from Firefox when looking for vulnerabilities.

• The evaluation of packages from external sources with the official vendor feeds in Vulnerability Detector.

• The handling of duplicated tags in the Vulnerability Detector configuration.

• The validation of hotfixes gathered by Syscollector.

• The reading of the Linux OS version when /etc/os-release does not provide it.

• A false positive when comparing the minor target of CentOS packages in Vulnerability Detector.

• A zombie process leaks in modulesd when using commands without a timeout.

• A race condition in Remoted that might create agent-group files with wrong permissions.

• A warning log in Wazuh DB when upgrading the global database.

• A bug in FIM on Windows that caused false positives due to changes in the host timezone or the daylight saving time when monitoring files in a FAT32 filesystem.

API

• An error with /groups/{group_id}/config endpoints (GET and PUT) when using complex localfile configurations.

Framework

• A cluster_control bug that caused an error message when running wazuh-clusterd in foreground.

Added

• Check the Kibana max buckets config by default in health-check and increase them.

• A warning in the role mapping section if the run_as setting is disabled.

• A label to indicate that the wui_ rules only apply to the wazuh-wui API user.

Changed

• Adapted the Wazuh Kibana plugin to the new Kibana platform.

• Wazuh config directory moved from /usr/share/kibana/optimize to /usr/share/kibana/data Kibana directory.

• Support on FIM Inventory Windows Registry for the new scheme with registry_key and registry_value from syscheck.

• Uncheck agents after an action in agents groups management.

• Unsave rule files when editing or creating a rule with invalid content.

• Replaced Wazuh API user with wazuh-wui in the default configuration.

• Add agent id to the reports name in Agent Inventory and Modules.

• Allow access to the Agents section with agent:group resource permission.

• Added vulnerabilities module for macOS agents.

Fixed

• Server error Invalid token specified: Cannot read property 'replace' of undefined.

• Show empty rules and decoders files.

• Wrong hover texts in CDB list actions.

• Access to forbidden agents information when exporting agents list.

• The complex search using the Wazuh API query filter in search bars.

• Validation to check if userPermissions are not ready yet.

• Agents table OS field sorting: Changed agents table field os_name to os.name,os.version to make it sortable.

• Different parsed datetime between agent detail and agents overview table.

• An error with the agents status pie chart tooltip that did not display the number of agents on the first hover.

• Menu crash when Solaris agents are selected.

• Report's creation dates set to 1970-01-01T00:00:00.000Z in some OS.

• Missing commands for Ubuntu/Debian and CentOS on the Deploy new agent section.

• Different hours displayed on Alerts List section in some dashboards.

• Permissions to access agents when policy agent:read is set.

• SCA permissions for agents views and dashboards.

• Settings of statistics indices creation that did not work properly.

Added

• The ruleset update tool is now able to bypass the version check with the force option.

• New AWS Config-History rules to make it more granular by including every item status supported.

• Several hundred new SCA policies for various operating systems.

Changed

• FIM rules have been adapted to the improvements for Windows Registry monitoring.

Fixed

• Updated MITRE techniques in web rules.

• Sonicwall predecoder to accept whitespaces at the beginning.