netty-handler: Netty: Denial of Service due to eager buffer allocation in TLS handshake

A flaw was found in Netty, a network application framework. A remote attacker can exploit this vulnerability by sending a crafted TLS Transport Layer Security ClientHello message. This can lead to an eager allocation of a large memory buffer, causing a Denial of Service DoS due to excessive memor...

POC-CVE-2026-0073

POC-CVE-2026-0073 ADB 인증 우회 — 개념 증명PoC naheeju 의 보안 연구 PoC 보안 공지: CVE-2026-0073은 2026-05-01 기준으로 패치되었습니다. 본 PoC는 보안 연구, 취약점 분석 및 승인된 시스템 테스트 목적으로만 제공됩니다. 목차 면책 조항 개요 이 PoC가 입증하는 것 안전 경계 요구 사항 저장소 구조 사용 방법 빌드 출력 예시 검증 실패 기술적 세부 사항 인증서 처리 보안 고려 사항 책임 있는 공개 연구 철학 저자 ⚠️ 면책 조항 이 저장소에는 보안 연구, 취약점 분석, 승인...

CVE-2014-3466_PoC

CVE-2014-3466 GnuTLS 버퍼 오버플로우: 세션 ID 길이 검사에 대한 개념 증명 정보 참조: https://bugzilla.redhat.com/showbug.cgi?id=1101932 이는 무기화된 익스플로잇이 아닙니다. 경고: 이 파이썬 코드는 못생겼습니다. ServerHello를 거의 손으로 제작했고, 파이썬 부분 자체에 약 5분이 아니라 15분 정도만 썼습니다. 원하신다면 이 익스플로잇을 자유롭게 개선해 주세요 가능하면 저에게 알려주세요!. 예제 악성 ServerHello 코드로 리스너를 시작하십시오: $...

CVE-2021-27876

CVE-2021-27876 Veritas Backup Exec Agent（CVE-2021-27876/77/78）の認証不要RCEエクスプロイト — NDMPを介したSHA認証バイパスによるSYSTEM権限取得 CVE一覧 CVE| 説明| CVSS 3.1 ---|---|--- CVE-2021-27876| NDMPプロトコルにおけるSHAハッシュ操作による認証バイパス| 9.8 Critical CVE-2021-27877| NDMPを介した認証不要の任意ファイル読み取り| 9.8 Critical CVE-2021-27878|...

explain-my-curl

explain-my-curl explain-my-curl은 cURL 명령어가 DNS, TLS, HTTP에서 수행하는 작업을 이해할 수 있도록 도와주는 로컬 우선 CLI 도구입니다. 이 저장소는 현재 다음을 포함합니다: cURL 입력을 파싱하고 설명하는 CLI 명령어 대화형 탐색을 위한 스타터 TUI DNS, TCP 연결, TLS 핸드셰이크, 최초 응답 시간Time-to-first-byte에 대한 실행 텔레메트리 명령어 표시 및 오류 문자열에 대한 비밀 정보 삭제Secret redaction 프로토콜 투명성을 지원하는 증거 레이...

cve-2021-34558

CVE-2021-34558용 POC Run the malicious TLS server go run main.go -mode server Run a normal http.Get client call against the server which panics go run main.go -mode client 악성 핸드셰이크가 불일치하는 인증서/암호화 스위트와 함께 전송될 수 있도록 ./vendor/github.com/refraction-networking/utls/handshakeserver.go에 약간의 수정이 있습니다. 결과는...

secret_handshake

Secret Handshake - mTLS를 통한 x509 인증서를 사용하는 악성코드 C2 채널 동기 먼저, 왜 이것을 오픈소스로 공개하는가? MITRE ATT&CK는 탈취되거나 자체 서명된 인증서에 대해서만 다루며, NDR네트워크 탐지 및 대응은 내가 아는 한 x509 인증서의 내용에 대해 발급 CA가 누구인지 외에는 거의 주의를 기울이지 않는다. 일반적으로 x509 인증서는 신뢰되며 우리 방화벽을 아무런 제재 없이 통과하도록 허용된다. 그러나 본질적으로 인증서는 다른 파일과 마찬가지로 악성 페이로드를 쉽게 포함할 수 있는...

midonescanner-android

MidONe Scanner اسکنر حرفه‌ای آی‌پی تمیز CDN · CLOUDFLARE · DNS ⬇️ دانلود APK · 🖥️ دانلود Windows · 📣 کانال تلگرام 🔍 왜 MidONe Scanner인가? 대부분의 IP 스캔 도구는 단순한 ping 만 보냅니다 — 실제 연결 속도와는 전혀 관계없는 숫자일 뿐입니다. MidONe Scanner는 다릅니다: 실제 데이터를 다운로드합니다. 앱이 표시하는 속도는 실제로 경험하게 될 속도와 동일합니다. how ? 🔬 내부 동작 — 스캔 엔진 파이프라인...

CentOS Linux 8.4 [TuxCare] Security Update: openssl / openssl-devel / openssl-libs / openssl-perl / etc Multiple Vulnerabilities (CENTOS8.4:CLSA-2026:1790933443)

The CentOS Linux 8.4 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.4:CLSA-2026:1790933443 advisory. - Issue summary: A certificate with many nameRelativeToCRLIssuer CRL distribution points causes disproportionate heap growth when...

CentOS Linux 8.5 [TuxCare] Security Update: openssl / openssl-devel / openssl-libs / openssl-perl / etc Multiple Vulnerabilities (CENTOS8.5:CLSA-2026:1790933161)

The CentOS Linux 8.5 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.5:CLSA-2026:1790933161 advisory. - Issue summary: A certificate with many nameRelativeToCRLIssuer CRL distribution points causes disproportionate heap growth when...

Rocky Linux 9 [CIQ] Security Update: java-17-openjdk / java-17-openjdk-debuginfo / etc Multiple Vulnerabilities (crlsa-2023_1879)

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20231879 advisory. OpenJDK: improper connection handling during TLS handshake 8294474 CVE-2023-21930 OpenJDK: Swing HTML parsing issue 8296832 CVE-2023-21939 OpenJDK: incorre...

Rocky Linux 8 [CIQ] Security Update: Cython-debugsource / PyYAML-debugsource / babel / numpy-debugsource / etc (crlsa-2023_5994)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20235994 advisory. python: TLS handshake bypass CVE-2023-40217 Tenable has extracted the preceding description block directly from the CIQ security advisory. Note that Nessus has not...

Rocky Linux 8 [CIQ] Security Update: java-17-openjdk / java-17-openjdk-debuginfo / etc Multiple Vulnerabilities (crlsa-2023_1898)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20231898 advisory. OpenJDK: improper connection handling during TLS handshake 8294474 CVE-2023-21930 OpenJDK: Swing HTML parsing issue 8296832 CVE-2023-21939 OpenJDK: incorre...

Rocky Linux 8 [CIQ] Security Update: java-11-openjdk / java-11-openjdk-debuginfo / etc Multiple Vulnerabilities (crlsa-2023_1895)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20231895 advisory. OpenJDK: improper connection handling during TLS handshake 8294474 CVE-2023-21930 OpenJDK: Swing HTML parsing issue 8296832 CVE-2023-21939 OpenJDK: incorre...

AlmaLinux 9.2 [TuxCare] Security Update: squid (ALMALINUX9.2:CLSA-2024:1735126310)

The AlmaLinux 9.2 host has a package installed that is affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2024:1735126310 advisory. - Squid is a caching proxy for the Web. Due to an Improper Validation of Specified Index bug, Squid versions 3.3.0.1 through 5.9 and 6.0 prio...

AlmaLinux 9.2 [TuxCare] Security Update: tomcat / tomcat-admin-webapps / tomcat-docs-webapp / etc (ALMALINUX9.2:CLSA-2025:1737654382)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1737654382 advisory. - Allocation of Resources Without Limits or Throttling vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 throu...

CentOS Linux 8 [TuxCare] Security Update: nss / nss-devel / nss-pkcs11-devel / nss-softokn / etc (CENTOS-STREAM8:CLSA-2026:1786093558)

The CentOS Linux 8 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS- STREAM8:CLSA-2026:1786093558 advisory. - An unchecked return value in TLS handshake code could have caused a potentially exploitable crash. This vulnerability affects Firefox...

AlmaLinux 9.2 [TuxCare] Security Update: pki-servlet-4.0-api / pki-servlet-engine Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2025:1764580671)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1764580671 advisory. - Allocation of Resources Without Limits or Throttling vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from...

Rocky Linux 8 [CIQ] Security Update: python3.11 / python3.11-debug / python3.11-debuginfo / etc (crlsa-2023_5463)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20235463 advisory. python: TLS handshake bypass CVE-2023-40217 Tenable has extracted the preceding description block directly from the CIQ security advisory. Note that Nessus has not...

CentOS Linux 8.4 [TuxCare] Security Update: nss / nss-devel / nss-pkcs11-devel / nss-softokn / etc (CENTOS8.4:CLSA-2026:1786358092)

The CentOS Linux 8.4 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.4:CLSA-2026:1786358092 advisory. - An unchecked return value in TLS handshake code could have caused a potentially exploitable crash. This vulnerability affects Firefox 122,...