The vulnerability referenced above is in relation to SSL Renegotiation. SSL Renegotiation is a feature of SSL and the vulnerability referenced only affects certain software and the way that software uses the SSL feature. Due to the way the Management Gateway uses the SSL Renegotiation feature it is not susceptible to this vulnerability.
Jun 11, 2013 · The Common Vulnerabilities and Exposures (CVE) database outlines the details behind this SSL renegotiation vulnerability in CVE-2009-3555. You can read the details for yourself, but here's what the CVE basically says: TLS and SSLv3 do not properly associate renegotiation handshakes with an existing connection, and this allows attackers to Jun 11, 2010 · The vulnerability in the transport layer security protocol allows man-in-the-middle attackers to surreptitiously introduce text at the beginning of an SSL session. The TLS Handshake TLS has a handshake protocol that performs authentication, negotiates cryptographic parameters and generates a session key, called a bulk encryption key in TLS-speak. A vulnerability of the renegotiation procedure was discovered in August 2009 that can lead to plaintext injection attacks against SSL 3.0 and all current versions of TLS. For example, it allows an attacker who can hijack an https connection to splice their own requests into the beginning of the conversation the client has with the web server. Mar 25, 2014 · Every now and then people ask about the "TLS Triple Handshake Vulnerability". OpenVPN is not affected, as is explained below (from this email thread). >> 1- Does OpenVPN use a lightweight SSL handshake upon automatic > reconnection? > > No. OpenVPN does not initiate TLS session renegotiation or resumption. Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS) are widely used to protect data exchanged over application protocols such as HTTP, SMTP, IMAP, POP, SIP, and XMPP. Over the last few years, several serious attacks on TLS have emerged, including attacks on its most commonly used cipher suites and their modes of operation.
Gentoo's Bugzilla – Bug 292023 [TRACKER] TLS Session Renegotiation MITM vulnerability (CVE-2009-3555) Last modified: 2019-12-21 17:14:39 UTC node [gannet]
Nov 10, 2009 · TLS renegotiation vulnerability (CVE-2009-3555) This is about right if one considers the way an attacker injects data in the TLS session (in red) according to One way to fix the renegotiation vulnerability for SSLv3 is to completely disable renegotiation on the server side. As a permanent fix for the vulnerability, a renegotiation indication extension was proposed for TLS that will require the client and server to include and verify information about previous handshakes in any renegotiation handshakes. TLS - Renegotiation. CVE-2009-3555 . remote exploit for Multiple platform
Neither of those links is relevant. An SSL ticket is not the same thing as an SSL session, and you don't need an extended ClientHello to renegotiate. An SSL session is merely a collection of protocols, cipher suites, and a master secret, and it is generally (a) shared among multiple SSL connections between the same peer, and (b) expired by one or both peers under control of the SSL software
This is a vulnerability coming up for multiple printers ranging from M series to P series printers (various models). Some models do have the "wizard" where you can basically disable certain TLS versions but even with those, I don't think has any options to disable the renegotiation. 0 Betty0610 TLS Details The attack exploits TLS's renegotiation feature, which allows a client and server who already have a TLS connection to negotiate new parameters, generate new keys, etc. Renegotiation is carried out in the existing TLS connection, with the new handshake packets being encrypted along with application packets. Nov 05, 2009 · Details of a new vulnerability involving SSL and TLS has been discovered. The vulnerability involves a flaw in renegotiation and allows man-in-the-middle attackers to surreptitiously introduce text at the beginning of an SSL session. Ivan Ristic explained some of the details of the SSL Renegotiation attack: There has a bug reported for this issue - TLS Session Renegotiation Vulnerability. The ETA for this bug fix is not determined yet. However, development is working on the patches to have more recent release of OpenSSL implemented in the FortiOS. Aug 10, 2010 · The vulnerability exists because certain Transport Layer Security (TLS)/Secure Sockets Layer (SSL) protected protocols assume that data received after a TLS renegotiation is sent by the same client as before the renegotiation. Renegotiation is TLS functionality that allows either peer to change the parameters of the secure session.