#zeek — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #zeek, aggregated by home.social.
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the #zeek workshop was awesome! i won't be at the training tomorrow because i gotta get some work done but i'm gonna be in town a little longer so i might try to sneak off to a book store or something
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on that note, I'll be in Berkeley the next few days for the #Zeek workshop. hoping to check out some used book shops and maybe record stores while I'm there. I'm open to recommendations!
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CW: release notes for Malcolm v26.08.0, a network traffic analysis tool suite for network security monitoring
Malcolm v26.08.0 adds a NetBox
purdue_zonecustom 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 todigestinstead of enforcings2s; and a CSRF vulnerability in the kiosk/script_callendpoint 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
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Обнаружение SSH-туннелей по размеру пакетов
Иллюстрация из книги «Справочник киберсантехника» Протокол SSH — очень мощный инструмент, который используется для удалённой консоли или передачи файлов (scp, sftp). Есть менее известная функция перенаправления портов . Такие SSH-туннели используются для пробития файрволов и хорошо скрываются от обнаружения стандартными средствами мониторинга типа Trisul , Zeek (ранее был известен как Bro), Suricata и Snort . Поэтому для их обнаружения в корпоративной сети используются другие методы.
https://habr.com/ru/companies/ruvds/articles/799255/
#ruvds_статьи #VDS #хостинг_сайтов #sshaudit #скрытие_ssh #шпаргалка #cheat_sheet #RSA #ED25519 #scp #sftp #прямой_туннель #обратный_туннель #autossh #перенеправление_портов #Trisul #Zeek #Bro #Suricata #Snort #анализ_трафика #размер_пакетов #нажатия_клавиш #обфускация_тайминга #OpenSSH #Lua #sshuttle