CVE-2011-3389 – HTTPS: block-wise chosen-plaintext attack against SSL/TLS (BEAST)

https://notcve.org/view.php?id=CVE-2011-3389

The SSL protocol, as used in certain configurations in Microsoft Windows and Microsoft Internet Explorer, Mozilla Firefox, Google Chrome, Opera, and other products, encrypts data by using CBC mode with chained initialization vectors, which allows man-in-the-middle attackers to obtain plaintext HTTP headers via a blockwise chosen-boundary attack (BCBA) on an HTTPS session, in conjunction with JavaScript code that uses (1) the HTML5 WebSocket API, (2) the Java URLConnection API, or (3) the Silverlight WebClient API, aka a "BEAST" attack. El protocolo SSL, como se utiliza en ciertas configuraciones en Microsoft Windows y Microsoft Internet Explorer, Mozilla Firefox, Google Chrome, Opera y otros productos, cifra los datos mediante el uso del modo CBC con vectores de inicialización encadenados, lo que permite a atacantes man-in-the-middle obtener cabeceras HTTP en texto plano a través de un ataque blockwise chosen-boundary (BCBA) en una sesión HTTPS, junto con el código de JavaScript que usa (1) la API WebSocket HTML5, (2) la API Java URLConnection o (3) la API Silverlight WebClient, también conocido como un ataque "BEAST". • http://blog.mozilla.com/security/2011/09/27/attack-against-tls-protected-communications http://blogs.technet.com/b/msrc/archive/2011/09/26/microsoft-releases-security-advisory-2588513.aspx http://blogs.technet.com/b/srd/archive/2011/09/26/is-ssl-broken-more-about-security-advisory-2588513.aspx http://curl.haxx.se/docs/adv_20120124B.html http://downloads.asterisk.org/pub/security/AST-2016-001.html http://ekoparty.org/2011/juliano-rizzo.php http://eprint.iacr.org/2004/111 http:&# • CWE-326: Inadequate Encryption Strength •