network-security-snort

Snort IDS/IPS 배포 실습 Snort 3 을 침입 탐지 시스템수동 모니터링과 침입 방지 시스템iptables를 통한 능동 차단으로 모두 사용하는 전체 사이클 배포로, Kali Linux상의 세 대의 가상 머신 네트워크에서 네 가지 공격 벡터에 대해 검증했습니다. 이 실습은 탐지 와 방지 의 운영적 차이를 증명합니다. 동일한 네 가지 벡터 공격 체인을 두 번 실행합니다. 처음에는 로그만 기록하고 차단할 수 없는 IDS를 대상으로, 그 다음에는 선택적으로 공격을 차단하면서도 정상 트래픽은 유지하는 IDS + iptable...

snort3

Snort++ Snort 3 は次世代の Snort IPS（不正侵入防止システム）です。 このファイルでは、Snort++ の特徴と、ダウンロードからデモまでの手順を説明します。Snort に不慣れな場合は、まず Snort のドキュメントを参照してください。以下のトピックを扱います： 概要 依存関係 ダウンロード Snort のビルド Snort の実行 ファズテスト ドキュメント Squeal 概要 このバージョンの Snort++ には、新機能に加えて Snort 2.X の全機能と、基本バージョンの Snort に対するバグ修正が含まれています（後述の一部を除く）：...

PT-2026-73234

Name of the Vulnerable Software and Affected Versions pfSense Plus versions prior to 26.07 Description The wg4 driver fails to verify if the MAC verification step succeeded after receiving a decryption result from OCF. This allows the driver to silently accept packets containing an invalid Poly13...

Multiple Cisco Products Snort 3 DoS Vulnerabilities (cisco-sa-snort3-multi-dos-XFWkWSwz_CVE-2026-20066)

According to its self-reported version, Cisco ASA Software is affected by a vulnerability. - Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in ...

CVE-2026-20052

A vulnerability in the memory management handling for the Snort 3 Detection Engine of Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart. This vulnerability is due to a logic error in memory management...

CVE-2026-20054

Multiple Cisco products are affected by a vulnerability in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. This vulnerability is due to improper error checking when decompressing VBA data. An attacker could exploit this...

CVE-2026-20057

Multiple Cisco products are affected by a vulnerability in the Snort 3 Visual Basic for Applications VBA feature which could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. This vulnerability is due to lack of proper error checking when decompressing VBA...

EUVD-2026-9466

Multiple Cisco products are affected by a vulnerability in the Snort 3 detection engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to incomplete error checking...

CVE-2026-20058

Multiple Cisco products are affected by vulnerabilities in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. These vulnerabilities are due to improper error checking when decompressing VBA data. An attacker could exploit...

CVE-2026-20066

CVE-2026-20066 affects multiple Cisco products using the Snort 3 Detection Engine. The issue stems from JSTokenizer normalization logic during HTTP inspection of JavaScript, allowing an unauthenticated remote attacker to trigger a DoS by causing the Snort 3 engine to restart, interrupting packet ...

CVE-2026-20065 Multiple Cisco Products Snort 3 TBD Denial of Service Vulnerability

Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to an error in the binder...

CVE-2026-20058

Multiple Cisco products are affected by vulnerabilities in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. These vulnerabilities are due to improper error checking when decompressing VBA data. An attacker could exploit...

CVE-2026-20057 Cisco Secure Firewall Threat Defense Software Snort 3 Visual Basic for Application Denial of Service Vulnerability

Multiple Cisco products are affected by a vulnerability in the Snort 3 Visual Basic for Applications VBA feature which could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. This vulnerability is due to lack of proper error checking when decompressing VBA...

CVE-2026-20057

Multiple Cisco products are affected by a vulnerability in the Snort 3 Visual Basic for Applications VBA feature which could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. This vulnerability is due to lack of proper error checking when decompressing VBA...

CVE-2026-20054

Multiple Cisco products are affected by a vulnerability in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. This vulnerability is due to improper error checking when decompressing VBA data. An attacker could exploit this...

CVE-2026-20053

Multiple Cisco products are affected by a vulnerability in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. This vulnerability is due to improper range checking when decompressing VBA data, which is user controlled. An...

CVE-2026-20052

A vulnerability in the memory management handling for the Snort 3 Detection Engine of Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart. This vulnerability is due to a logic error in memory management...

CVE-2026-20006

A vulnerability in the TLS cryptography functionality of the Snort 3 Detection Engine of Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to unexpectedly restart, resulting in a denial of service DoS condition...

CVE-2026-20005

Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to incomplete parsing of the...

Cisco IOS XE和Cisco Secure Firewall Threat Defense 数字错误漏洞

Cisco IOS XE and Cisco Secure Firewall Threat Defense are both products of the American company Cisco. Cisco IOS XE is an operating system. It serves as a single operating system for enterprise wired and wireless access, aggregation, core, and WAN operations. Cisco IOS XE reduces the complexity o...