CVE-2026-63374

AnyIO (a Python asynchronous networking framework) is vulnerable to TLS certificate spoofing prior to version 4.14.2 . The functions connect_tcp() and TLSStream.wrap() validate internationalized (non-ASCII) domain names using the Python standard library's IDNA 2003 encoding instead of the more ac...

Limelighter

LimeLighter 偽のコード署名証明書を作成し、バイナリやDLLファイルに署名することで、EDR製品の回避やMSSおよびsockの監視を回避するためのツールです。LimeLighterは有効なコード署名証明書を使用してファイルに署名することもできます。Limelighterは acme.com のような完全修飾ドメイン名を使用できます。 コントリビューション LimeLighterはgolangで開発されました。 以下のものがOSにインストールされていることを確認してください。 root@kitploit: openssl osslsigncode...

sslsplit

SSLsplit - 透過的なSSL/TLS傍受 https://www.roe.ch/SSLsplit 概要 SSLsplitは、SSL/TLS暗号化ネットワーク接続に対する中間者攻撃のためのツールです。ネットワークフォレンジック、アプリケーションセキュリティ分析、ペネトレーションテストに役立つことを目的としています。...

chainoffools

CryptoAPI CVE-2020-0601: Windows CryptoAPI のなりすまし脆弱性の悪用。詳細はブログ記事をご覧ください。 必要条件のインストール root@kitploit: pip install -U -r requirements.txt 証明書の生成はOpenSSLバージョン1.0.2uまでで動作します。 CA証明書 ここではUSERTrust ECC Certification Authorityを使用しましたが、P-384曲線で動作する任意のルート証明書で構いません。 ルート証明書の公開鍵に一致する秘密鍵を生成するために、スクリプトgen-key.py...

CurveBall

CurveBall CVE-2020-0601 - PoC CVE-2020-0601は、一般にCurveBallと呼ばれる、楕円曲線暗号（ECC）を使用した証明書の署名が正しく検証されない脆弱性です。...

Linux Distros Unpatched Vulnerability : CVE-2026-63374

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - AnyIO: TLSStream IDNA 2003 host name encoding enables potential TLS certificate spoofing CVE-2026-63374 Note that Nessus relies on the presence of the package a...

GHSA-82R6-8W77-94W6 AnyIO: TLSStream IDNA 2003 host name encoding enables potential TLS certificate spoofing

Impact Services using internationalized non-ASCII domain names are potentially vulnerable to TLS connections made from AnyIO's connecttcp or directly via TLSStream.wrap where the connection has through other means been hijacked and redirected to a malicious server. The attacker would obtain a...

AnyIO: TLSStream IDNA 2003 host name encoding enables potential TLS certificate spoofing

Impact Services using internationalized non-ASCII domain names are potentially vulnerable to TLS connections made from AnyIO's connecttcp or directly via TLSStream.wrap where the connection has through other means been hijacked and redirected to a malicious server. The attacker would obtain a...

CurveBall-CVE-2020-0601-PoC

CurveBall CVE-2020-0601 - PoC CurveBallとして知られるこの脆弱性は、ECCアルゴリズムを使用する証明書の検証が無効であることに起因します。Windowsは、証明書キャッシュから以前に検証済みの証明書を検証しようとし、その際に証明書の公開鍵が同一かどうかのみをチェックし、他のパラメータをチェックしません。 数学的詳細 証明書を偽装するために、以下のようにパラメータを明示的に設定します： root@kitploit: d' = 1 G' = Q 詳細については、finalreportmilestoneIV.pdf...

CVE-2026-62243

A flaw was found in Netty io.netty:netty-handler. When using the SslProvider.OPENSSL client path with a plain X509TrustManager and without Unsafe-based trust-manager wrapping Java 25+, TLS hostname verification is disabled. This misconfiguration allows a man-in-the-middle attacker to present a...

CVE-2026-15554

the Undertow AJP listener honours forged sslcert and isssl AJP attributes without requiring any shared-secret authentication. This enables an unauthenticated attacker with direct TCP access to port 8009 to bypass CLIENT-CERT authentication by injecting a forged X.509 certificate via the AJP...

gnutls: gnutls: Certificate validation bypass due to oversized Subject Alternative Name

A flaw was found in gnutls. When validating certificates, an oversized Subject Alternative Name SAN could cause the validation process to incorrectly fall back to checking the Common Name CN field. This could allow a remote attacker to bypass proper certificate validation, potentially leading to...

SUSE-SU-2026:2822-1 Security update for gnutls

This update for gnutls fixes the following issues - CVE-2025-14831: excessive resource consumption when verifying specially crafted malicious certificates containing a large number of name constraints and SANs bsc1257960. - CVE-2026-3833: incorrectly accepted domain names due to comparison during...

K000161963: Golang vulnerability CVE-2025-61727

Security Advisory Description An excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate. For example a constraint that excludes the subdomain test.example . com does not prevent a leaf certificate from claiming the SAN .example.co...

CVE-2026-56020

The CVE-2026-56020 affects the Webmin HTTP server (miniserv.pl). An unauthenticated attacker can bypass authentication by sending a forged HTTP header to impersonate any user who has an SSL client certificate configured, effectively spoofing certificate DNs to gain access. This is a network-based...

Webmin multiple vulnerabilities

RISK EVALUATION Webmin contains multiple vulnerabilities. In the worst case, a remote, unauthenticated attacker could impersonate and authenticate as any user. 2. RECOMMENDED PRACTICES Update to most recent available version of Webmin. 3. DESCRIPTION The Webmin HTTP server miniserv.pl allows...

ALPINE-CVE-2026-42769

Issue Summary: An error in the callback used to verify the certificate provided in a Root CA key update Certificate Management Protocol CMP message response rendered the certificate validation ineffectual, which could lead to escalation of credentials from the Registration Authority RA level to t...

CVE-2026-46579 Openshift/router: openshift/router: mtls client certificate spoofing via unstripped x-ssl-client headers on http frontend

A flaw was found in the OpenShift Router. When a Route has insecureEdgeTerminationPolicy set to Allow, the HTTP frontend does not remove X-SSL-Client- headers from incoming requests. This allows an unauthenticated attacker to send plain HTTP requests with crafted X-SSL-Client- headers. As a resul...

CVE-2026-45574

epa4all-client is the Java Client for epa4all / ePA 3.0 in the Telematik Infrastruktur. Prior to 1.2.2, an attacker on the network path between the ePA service and the Konnektor can present any TLS certificate self-signed, expired, wrong CN and intercept all SOAP traffic. This includes patient...

CVE-2026-42013

A flaw was found in gnutls. When validating certificates, an oversized Subject Alternative Name SAN could cause the validation process to incorrectly fall back to checking the Common Name CN field. This could allow a remote attacker to bypass proper certificate validation, potentially leading to...