#suricata — Public Fediverse posts

Malcolm v26.08.0 adds a NetBox purdue_zone custom field that propagates ICS/OT network zone classifications to devices, prefixes, and virtual machines (and automatically to autopopulated devices from their containing prefix); Raspberry Pi 5 support for Hedgehog Linux; and, configurable Strelka scanner and disabled-Suricata-SID lists. This release also fixes five security vulnerabilities: an nginx RBAC bypass via percent-encoded, case-varied, or slash-doubled request paths; an archive-bomb bypass affecting raw-stream and lzip-compressed uploads; a case-variant path bypass of the nginx auth gate exposing the Arkime backend to forged identity headers; an Arkime authentication gap on sensor nodes that fell back to digest instead of enforcing s2s; and a CSRF vulnerability in the kiosk /script_call endpoint allowing unauthenticated data-destructive operations. Arkime, Zeek, NetBox, OpenSearch, OpenSearch Dashboards, Logstash, Filebeat, Keycloak, and other components have been updated as well. Several other bug fixes and general improvements are also included.

https://github.com/idaholab/Malcolm/compare/v26.07.1...v26.08.0

See the Release Notes for the full set of new features, enhancements, bug fixes, and component version updates.

Malcolm is a powerful, easily deployable network 🖧 traffic analysis tool suite for network security monitoring 🕵🏻‍♀️.

Malcolm operates as a cluster of containers 📦, isolated sandboxes which each serve a dedicated function of the system. This makes Malcolm deployable with frameworks like Docker 🐋, Podman 🦭, and Kubernetes ⎈. Check out the Quick Start guide for examples on how to get up and running.

Alternatively, dedicated official ISO installer images 💿 for Malcolm and Hedgehog Linux 🦔 can be downloaded from Malcolm's releases page on GitHub. Due to limits on individual files in GitHub releases, these ISO files have been split 🪓 into 2GB chunks and can be reassembled with scripts provided for both Bash 🐧 (release_cleaver.sh) and PowerShell 🪟 (release_cleaver.ps1). See Downloading Malcolm - Installer ISOs for instructions.

As always, join us on the Malcolm discussions board 💬 to engage with the community, or pop some corn 🍿 and watch a video 📼.

#Malcolm #HedgehogLinux #Zeek #Arkime #Strelka #NetBox #OpenSearch #Elasticsearch #Suricata #PCAP #NetworkTrafficAnalysis #networksecuritymonitoring #OT #ICS #icssecurity #CyberSecurity #Cyber #Infosec #INL

Malcolm v26.07.1 adds a few minor changes on top of Malcolm v26.07.0, the most notable being a fix for a crash in the strelka-backend container on arm64 platforms. Malcolm v26.07.0 added IEC 60870-5-104 (IEC 104) protocol support using CERT.LV's Zeek plugin, including Logstash parsing, ECS normalization, Arkime fields, and a new OpenSearch Dashboards dashboard. This release also fixes three archive extraction and authentication security vulnerabilities; improves NetBox enrichment configuration; and addresses PostgreSQL major version upgrade, custom CA certificate for KeyCloak, container health check, privilege-drop signal chaining, and configuration script issues. Arkime, Zeek, Fluent Bit, Filebeat, Logstash, Supercronic, and Alpine-based images have been updated as well.

If you are upgrading from an existing Malcolm installation, run ./scripts/status for Malcolm to migrate some settings prior to running ./scripts/configure, ./scripts/start, or other Malcolm control scripts.

https://github.com/idaholab/Malcolm/compare/v26.06.1...v26.07.1

• ✨ Features and enhancements

  • Add IEC 60870-5-104 (IEC 104) support using the CERT.LV spicy-iec104 Zeek plugin, including Zeek log ingestion, ECS field mapping, Arkime fields, and an IEC 104 dashboard #939
  • Make LOGSTASH_NETBOX_ENRICHMENT_DATASETS more flexible: it now accepts default, ics/ot, all, explicit provider.dataset values, and combinations such as default,ics #1037
  • Allow LOGSTASH_NETBOX_ENRICHMENT_DATASETS to be configured through checkboxes in the configuration TUI #1033
  • Improve ./scripts/start error messages by listing missing or invalid authentication-related files instead of reporting only a generic authentication setup failure #865
  • Have system-quickstart detect and prepopulate existing time synchronization settings when rerun #992

• 🛡️ Security Remediation & Hardening

  • Fix an RBAC bypass caused by URI normalization differences between Nginx location matching and the Lua authorization layer CVE-2026-63177 #1042
  • Fix path traversal in archive extraction directory handling by validating resolved paths and using libarchive's secure extraction flags CVE-2026-63134 #1040
  • Limit archive entry count, nesting depth, and total expanded size to prevent inode- and resource-exhaustion denial of service during extraction CVE-2026-63133 #1041
  • Mark OpenID Connect session cookies as secure and improve handling of externally forwarded HTTPS schemes

• 🐛 Bug fixes

  • Co-installation of opencv-python and opencv-contrib-python corrupts cv2.abi3.so, segfaulting strelka-backend at import on arm64 #1046 (fix)
  • Allow the configuration TUI to reset supported variables back to empty values after installation #1024, #1030
  • Fix the broken signal chain in docker-uid-gid-setup.sh so signals reach the final process after dropping privileges #1039 to ensure clean shutdown of containers
  • Fix PostgreSQL being reported unhealthy after a major-version upgrade, improve upgrade-state handling, and perform required post-upgrade extension and collation maintenance #1038
  • Fix the Nginx Lua/OpenID Connect helper not honoring user-provided CA certificates for KeyCloak when KEYCLOAK_SSL_VERIFY=true #1035
  • Restore curl to the the htadmin container for use by the health check script #1029
  • Reduce the size of the OpenSearch Dashboards image by copying only the permissions data needed from its upstream image layer #1031
  • Fix JSON handling of several Zeek fields whose names contain dots by normalizing them to underscore-separated field names
  • Fix additional Zeek and Suricata field normalization and ECS mapping inconsistencies found while updating dashboards and index templates

• ✅ Component version updates

  • Arkime to v6.6.0
    • This update contains a major speed-up when loading the SPIView and Connections pages
  • Zeek to v8.2.1 #970
  • Fluent Bit Windows installer helper to v5.0.9
  • Filebeat OSS to v9.4.3
  • Logstash to v9.4.4
  • Pillow (Python library used in the netbox container) to v12.3.0 to address several security findings
  • Supercronic to v0.2.47
  • Alpine Linux base images to v3.24
  • KeyCloak to 26.6.4
  • cryptography (Python library) to v48.0.1 to address security advisory GHSA-537c-gmf6-5ccf

• 🧹 Code and project maintenance

  • Broad spelling, grammar, naming consistency, and documentation cleanup across scripts, configuration, dashboards, and documentation #990
  • Expand and restructure documentation to provide better project context for developers and LLM-assisted code analysis #964
    • Malcolm Dashboard Reference
    • Search Queries in Arkime and OpenSearch Dashboards
  • Improve installer validation, environment-variable mapping tests, and configuration item metadata
  • Refresh dashboards, index templates, field mappings, protocol documentation, and navigation links
  • Minor improvements to the Hedgehog Raspberry Pi image build process.

• 📄 Configuration changes for Malcolm (in environment variables in ./config/). The Malcolm control script (e.g., ./scripts/status, ./scripts/start) automatically handles creation and migration of variables according to ./config/env-var-actions.yml.

  • LOGSTASH_NETBOX_ENRICHMENT_DATASETS in logstash.env now defaults to default and may contain default, ics/ot, all, explicit provider.dataset values, or a comma-separated combination of these values
  • ZEEK_DISABLE_ICS_IEC104 in zeek.env controls whether the IEC 104 Zeek plugin is disabled
  • SAFE_EXTRACT_MAX_ENTRIES, SAFE_EXTRACT_MAX_DEPTH, and SAFE_EXTRACT_MAX_BYTES in upload-common.env set archive extraction resource limits for uploaded archive files (e.g., containing Zeek logs for processing); their defaults are 5,000 entries, 20 directory levels, and 4 GiB of expanded data

Malcolm is a powerful, easily deployable network 🖧 traffic analysis tool suite for network security monitoring 🕵🏻‍♀️.

Malcolm operates as a cluster of containers 📦, isolated sandboxes which each serve a dedicated function of the system. This makes Malcolm deployable with frameworks like Docker 🐋, Podman 🦭, and Kubernetes ⎈. Check out the Quick Start guide for examples on how to get up and running.

Alternatively, dedicated official ISO installer images 💿 for Malcolm and Hedgehog Linux 🦔 can be downloaded from Malcolm's releases page on GitHub. Due to limits on individual files in GitHub releases, these ISO files have been split 🪓 into 2GB chunks and can be reassembled with scripts provided for both Bash 🐧 (release_cleaver.sh) and PowerShell 🪟 (release_cleaver.ps1). See Downloading Malcolm - Installer ISOs for instructions.

As always, join us on the Malcolm discussions board 💬 to engage with the community, or pop some corn 🍿 and watch a video 📼.

#Malcolm #HedgehogLinux #Zeek #Arkime #Strelka #NetBox #OpenSearch #Elasticsearch #Suricata #PCAP #NetworkTrafficAnalysis #networksecuritymonitoring #OT #ICS #icssecurity #CyberSecurity #Cyber #Infosec #INL

Malcolm v26.06.0 is primarily a security hardening release, addressing fifteen vulnerabilities (2 high severity, 6 medium, and 7 low) identified in a security assessment. Bug fixes address an issue with the zeek container causing performance degredation over time and a fix for duplicate virtual machine entries in NetBox autopopulation. A few component versions have also been updated.

If you are upgrading from an existing Malcolm installation, run ./scripts/status for Malcolm to migrate some settings prior to running ./scripts/configure, ./scripts/start, or other Malcolm control scripts.

https://github.com/idaholab/Malcolm/compare/v26.05.2...v26.06.0

• 🛡️ Security Remediation & Hardening (#996)
  • Unauthenticated reflected XSS / open redirect in /dashboards/app/refred; also added Content-Security-Policy framing headers (frame-ancestors, base-uri, form-action) and X-Frame-Options: SAMEORIGIN globally to mitigate clickjacking (#997)
  • Authenticated command injection in filebeat container via SFTP-uploaded filename (#998)
  • Password stored as MD5-crypt for SFTP (#1009)
  • Authenticated archive zip-slip file write in filebeat container (#999)
  • OpenSearch path injection via /mapi/fields?template (#1000)
  • submit.php Location: open redirect via Referer (#1007)
  • htadmin proxied with no nginx auth gate (#1003)
  • Keycloak OIDC ssl_verify always set to false (#1006)
  • NetBox SUPERUSER_PASSWORD=admin shipped default (#1011)
  • RBAC defaultdict(lambda: True) fail-open for unlisted handlers in Malcolm API (#1004)
  • Read-only Arkime deny-regex omits addtags/removetags (#1008)
  • Read-only deployment allows POST /mapi/event (#1002)
  • WISE auth path selectable by client User-Agent (#1001)
  • ARKIME_PASSWORD_SECRET=Malcolm shipped default (#1005)
  • requests CVE bump reverted in logstash image (#1010)
  • Fix API auth errors and hide NGINX version disclosure (#989)
• 🐛 Bug fixes
  • auto-discovered Virtual Machines in NetBox seem to allow for duplicates (#978)
  • Ensure list of archive file types supported by Malcolm for uploading Zeek logs (application/gzip,application/vnd.rar,application/x-7z-compressed,application/x-bzip2,application/x-cpio,application/x-gzip,application/x-lzip,application/x-lzma,application/x-rar-compressed,application/x-tar,application/x-xz,application/zip) are consistently used across the platform.
  • zeek container continually grows /usr/local/zeek/crontab, causing Malcolm performance to gradually worsen (#1015)
• ✅ Component version updates
  • Filebeat to v9.4.2
  • Fluent Bit to v5.0.6
  • Logstash to v9.4.2
  • Supercronic to v0.2.46
  • uv to v0.11.15
• 🧹 Code and project maintenance
  • Fixed some incorrect links in documentation (#988, thanks @jsoref)
  • Refactored NGINX error pages configuration into its own include file and added a 401.html page
• 📄 Configuration changes for Malcolm (in environment variables in ./config/). The Malcolm control script (e.g., ./scripts/status, ./scripts/start) automatically handles creation and migration of variables according to ./config/env-var-actions.yml.
  • Added KEYCLOAK_SSL_VERIFY (default false) to keycloak.env for #1006
  • The Arkime password hash secret ARKIME_PASSWORD_SECRET in arkime-secret.env no longer has a default value: it must be set during auth_setup (for #1005)
  • The Netbox superuser password SUPERUSER_PASSWORD in netbox-secret.env no longer has a default value: it must be set during auth_setup (for #1011)

Malcolm is a powerful, easily deployable network 🖧 traffic analysis tool suite for network security monitoring 🕵🏻‍♀️.

Malcolm operates as a cluster of containers 📦, isolated sandboxes which each serve a dedicated function of the system. This makes Malcolm deployable with frameworks like Docker 🐋, Podman 🦭, and Kubernetes ⎈. Check out the Quick Start guide for examples on how to get up and running.

Alternatively, dedicated official ISO installer images 💿 for Malcolm and Hedgehog Linux 🦔 can be downloaded from Malcolm's releases page on GitHub. Due to limits on individual files in GitHub releases, these ISO files have been split 🪓 into 2GB chunks and can be reassembled with scripts provided for both Bash 🐧 (release_cleaver.sh) and PowerShell 🪟 (release_cleaver.ps1). See Downloading Malcolm - Installer ISOs for instructions.

As always, join us on the Malcolm discussions board 💬 to engage with the community, or pop some corn 🍿 and watch a video 📼.

#Malcolm #HedgehogLinux #Zeek #Arkime #Strelka #NetBox #OpenSearch #Elasticsearch #Suricata #PCAP #NetworkTrafficAnalysis #networksecuritymonitoring #OT #ICS #icssecurity #CyberSecurity #Cyber #Infosec #INL