clone-cert

clone-cert.sh これは、TLSでラップされたTCPポートに関連付けられたX.509証明書を取得し、opensslを使用して公開鍵を置き換えて署名を修正することで、類似の証明書を作成するシンプルなシェルスクリプトです。 これは特に、自己署名証明書がなぜセキュリティを提供できないかをデモンストレーションしたい場合に便利です。もちろん、クローンされた証明書のフィンガープリントは異なります...しかし、自己署名証明書のフィンガープリントを手動で確認する人はどれだけいるでしょうか？...

CVE-2026-81702

openssl_encrypt before 1.4.9 fails to re-derive and validate fingerprints when loading identities from identity.json, enabling silent key substitution . An attacker can replace legitimate public keys in identity stores with their own while maintaining the claimed fingerprint, so that encryption u...

CVE-2026-81702 openssl_encrypt before 1.4.9 Key Substitution via Identity Load

opensslencrypt before 1.4.9 fails to re-derive and validate fingerprints when loading identities from identity.json, allowing attackers to substitute public keys in identity stores. Attackers can replace legitimate public keys with their own while maintaining the claimed fingerprint, enabling...

EUVD-2024-45562

Malicious code in bioql PyPI...

Nextcloud Server server-side encryption key underprotection vulnerability (CNVD-2020-66860)

Nextcloud is a set of client-server software for creating file hosting services and using them. A server-side insufficient encryption key protection vulnerability exists in Nextcloud Server 19.0.1. An attacker can exploit the vulnerability to replace the public key and decrypt the encryption key...

Code injection

MailMate before 1.11 automatically imported S/MIME certificates and thereby silently replaced existing ones. This allowed a man-in-the-middle attacker to obtain an email-validated S/MIME certificate from a trusted CA and replace the public key of the entity to be impersonated. This enabled the...