Files

T

Samirbous 3497c7b0b5 [New] Potential Telnet Authentication Bypass (CVE-2026-24061) (#5612 )

* [New] Potential Telnet Authentication Bypass (CVE-2026-24061)

https://www.safebreach.com/blog/safebreach-labs-root-cause-analysis-and-poc-exploit-for-cve-2026-24061/"

https://security-tracker.debian.org/tracker/CVE-2026-24061

* Update lateral_movement_telnet_auth_bypass_via_envar.toml

* Update lateral_movement_telnet_auth_bypass_via_envar.toml

* Update lateral_movement_telnet_auth_bypass_via_envar.toml

* Apply suggestion from @Aegrah

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>

* Update initial_access_telnet_auth_bypass_via_user_envar.toml

* Update rules/linux/initial_access_telnet_auth_bypass_via_user_envar.toml

* added rule for auditd

* Update rules/linux/initial_access_telnet_auth_bypass_envar_auditd.toml

* Update rules/linux/initial_access_telnet_auth_bypass_envar_auditd.toml

* Update initial_access_telnet_auth_bypass_envar_auditd.toml

---------

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>

2026-01-26 10:18:23 +00:00

_deprecated

[Rule Deprecations] AWS Rule Deprecations (#5568 )

2026-01-20 16:05:39 -05:00

apm

[FR] Generate investigation guides (#4358 )

2025-01-22 11:17:38 -06:00

cross-platform

[New] Newly Observed Network Alert (#5585 )

2026-01-23 12:22:21 +00:00

integrations

[Rule Tuning] Entra ID OAuth Authorization Code Grant for Unusual User, App, and Resource (#5589 )

2026-01-24 08:51:23 -05:00

linux

[New] Potential Telnet Authentication Bypass (CVE-2026-24061) (#5612 )

2026-01-26 10:18:23 +00:00

macos

Update command_and_control_unusual_network_connection_to_suspicious_web_service.toml (#5008 )

2025-08-26 13:03:59 +01:00

add mitre attack rules for ML job rules, bump dates (#5333 )

2025-12-01 15:48:59 -06:00

network

Update discovery_potential_port_scan_detected.toml (#5571 )

2026-01-16 23:21:12 -03:00

promotions

[Rule Tuning] Remove New Wiz Defend Rule (Add Wiz Defend to External Alerts) (#5422 )

2025-12-08 22:24:22 +05:30

threat_intel

[Rule Tuning] Reduce Severity from Critical to High (#4637 )

2025-05-06 21:37:47 +05:30

windows

[Tuning] Rare Connection to WebDAV Target (#5556 )

2026-01-23 11:17:19 +00:00

README.md

[New Rule] Endpoint Security Behavior Protection (#1440 )

2021-08-25 09:56:59 -06:00

README.md

rules/

Rules within this folder are organized by solution or platform. The structure is flattened out, because nested file hierarchies are hard to navigate and find what you're looking for. Each directory contains several .toml files, and the primary ATT&CK tactic is included in the file name when it's relevant (i.e. windows/execution_via_compiled_html_file.toml)

folder	description
`.`	Root directory where rules are stored
`apm/`	Rules that use Application Performance Monitoring (APM) data sources
`cross-platform/`	Rules that apply to multiple platforms, such as Windows and Linux
`integrations/`	Rules organized by Fleet integration
`linux/`	Rules for Linux or other Unix based operating systems
`macos/`	Rules for macOS
`ml/`	Rules that use machine learning jobs (ML)
`network/`	Rules that use network data sources
`promotions/`	Rules that promote external alerts into detection engine alerts
`windows/`	Rules for the Microsoft Windows Operating System

Integration specific rules are stored in the integrations/ directory:

folder	integration
`aws/`	Amazon Web Services (AWS)
`azure/`	Microsoft Azure
`cyberarkpas/`	Cyber Ark Privileged Access Security
`endpoint/`	Elastic Endpoint Security
`gcp/`	Google Cloud Platform (GCP)
`google_workspace/`	Google Workspace (formerly GSuite)
`o365/`	Microsoft Office
`okta/`	Oka