clone-cert

clone-cert.sh 这是一个简单的 shell 脚本，用于检索与 TLS 封装的 TCP 端口关联的 X.509 证书，并使用 openssl 通过替换公钥并修复签名来创建类似的证书。 如果你希望演示为什么自签名证书无法提供任何安全性，这将特别有用。当然，克隆证书的指纹会不同……但谁会手动检查自签名证书的指纹呢？ 你也可以克隆非自签名的证书。在这种情况下，序列号将被新生成的序列号替换（因为浏览器会记录遇到的序列号，并注意到异常情况），同时颁发者也会被更改（出于同样的原因）。伪造的颁发者会将第一个大写字母 O 替换为零，或者将小写字母 l 替换为大写字母...

qark

Quick Android Review Kit This tool is designed to look for several security related Android application vulnerabilities, either in source code or packaged APKs. The tool is also capable of creating "Proof-of-Concept" deployable APKs and/or ADB commands, capable of exploiting many of the...

CVE-2022-0778

CVE-2022-0778 该漏洞会在解析椭圆曲线密钥时触发 OpenSSL 中 BNmodsqrt 函数的无限循环。这意味着一个恶意构造的 X.509 证书可以对任何未修补的服务器发起 DoS 攻击。 漏洞的核心在于解析以压缩格式表示点的 EC 密钥过程中：在解析此类密钥时，OpenSSL 会尝试扩展压缩点，试图计算曲线定义素数 p 的模平方根。然而，p 的素性未在任何地方检查，即使在需要它的 BNmodsqrt 中也不例外；因此，由于 p 不是预期的素数，实现中的一个错误会导致无限循环。 中文版说明可以见我的博客OpenSSL CVE-2022-0778漏洞问题复现与非法证书构造 致...

CVE-2026-95616

An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP message carrying an X.509 certificate whose SubjectKeyIdentifier extension declares a length of 0x7FFFFFFF; WSS4J decodes this while resolving the signature's...

CVE-2026-95616 Apache WSS4J: Unauthenticated denial of service via integer overflow in DER parsing of X.509 certificate extensions

An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP message carrying an X.509 certificate whose SubjectKeyIdentifier extension declares a length of 0x7FFFFFFF; WSS4J decodes this while resolving the signature's...

CVE-2026-95616

Apache WSS4J is vulnerable to an integer overflow in its DER bounds check, which allows an oversized allocation to bypass validation. An unauthenticated attacker can exploit this by sending a SOAP message containing an X.509 certificate where the SubjectKeyIdentifier extension declares a length o...

CVE-2026-95616 Apache WSS4J: Unauthenticated denial of service via integer overflow in DER parsing of X.509 certificate extensions

An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP message carrying an X.509 certificate whose SubjectKeyIdentifier extension declares a length of 0x7FFFFFFF; WSS4J decodes this while resolving the signature's...

CVE-2026-102758

The nxsecurex509asn1tlvblockparse function parses ASN.1 TLV tag-length-value blocks out of DER-encoded data. It is the primitive underneath all X.509 certificate parsing in NetX Secure, and therefore runs on certificates supplied by a remote peer during the TLS handshake. The function reads the...

CVE-2026-102758

The nxsecurex509asn1tlvblockparse function parses ASN.1 TLV tag-length-value blocks out of DER-encoded data. It is the primitive underneath all X.509 certificate parsing in NetX Secure, and therefore runs on certificates supplied by a remote peer during the TLS handshake. The function reads the...

CVE-2026-102758

The NetX Secure library contains a vulnerability in the _nx_secure_x509_asn1_tlv_block_parse() function, which handles ASN.1 TLV blocks during X.509 certificate parsing. The root cause is an out-of-bounds read because the function reads a one-byte ASN.1 tag from the buffer before verifying that t...

CVE-2026-102758

The nxsecurex509asn1tlvblockparse function parses ASN.1 TLV tag-length-value blocks out of DER-encoded data. It is the primitive underneath all X.509 certificate parsing in NetX Secure, and therefore runs on certificates supplied by a remote peer during the TLS handshake. The function reads the...

EUVD-2026-89113

The nxsecurex509asn1tlvblockparse function parses ASN.1 TLV tag-length-value blocks out of DER-encoded data. It is the primitive underneath all X.509 certificate parsing in NetX Secure, and therefore runs on certificates supplied by a remote peer during the TLS handshake. The function reads the...

CVE-2026-102758

The nxsecurex509asn1tlvblockparse function parses ASN.1 TLV tag-length-value blocks out of DER-encoded data. It is the primitive underneath all X.509 certificate parsing in NetX Secure, and therefore runs on certificates supplied by a remote peer during the TLS handshake. The function reads the...

CVE-2026-84783

Issue summary: The first concurrent use of the same X.509 certificate by several threads may cause its cached extension data to be freed while another thread is still using it. Impact summary: A remote, unauthenticated peer could crash a multi-threaded TLS client, or a multi-threaded TLS server...

CVE-2026-84783

Issue summary: The first concurrent use of the same X.509 certificate by several threads may cause its cached extension data to be freed while another thread is still using it. Impact summary: A remote, unauthenticated peer could crash a multi-threaded TLS client, or a multi-threaded TLS server...

EUVD-2026-89014

Issue summary: The first concurrent use of the same X.509 certificate by several threads may cause its cached extension data to be freed while another thread is still using it. Impact summary: A remote, unauthenticated peer could crash a multi-threaded TLS client, or a multi-threaded TLS server...

CVE-2026-6789-Stack-Buffer-Overflow-in-Embedded-TLS-Certificate-Parser

9. CVE-2026-6789 – Desbordamiento de búfer de pila en el analizador de certificados TLS embebido Resumen Una popular librería TLS ligera simulada contiene un desbordamiento de búfer de pila al analizar extensiones de Subject Alternative Name de certificados X.509 con un campo de longitud...

Important: Red Hat Security Advisory: libreswan security update

An update for libreswan is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring...

Linux Distros Unpatched Vulnerability : CVE-2026-89133

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - wolfSSL versions 5.9.2 and earlier contain a flaw in the X.509 certificate validation logic where it fails to properly enforce NameConstraints extensions when...

DEBIAN-CVE-2026-89133

wolfSSL versions 5.9.2 and earlier contain a flaw in the X.509 certificate validation logic where it fails to properly enforce NameConstraints extensions when there is an unconstrained CA tier between a name-constrained intermediate CA and the leaf certificate. wolfSSL incorrectly accepted...