SSL / TLS Renegotiation Handshakes MiTM Plaintext Data Injection

medium Nessus 插件 ID 42880
全新!插件严重性现在使用 CVSS v3

计算的插件严重性默认已更新为使用 CVSS v3。没有 CVSS v3 分数的插件将回退到 CVSS v2 来计算严重性。可以在设置下拉列表中切换严重性显示首选项。

简介

The remote service allows insecure renegotiation of TLS / SSL connections.

描述

The remote service encrypts traffic using TLS / SSL but allows a client to insecurely renegotiate the connection after the initial handshake.
An unauthenticated, remote attacker may be able to leverage this issue to inject an arbitrary amount of plaintext into the beginning of the application protocol stream, which could facilitate man-in-the-middle attacks if the service assumes that the sessions before and after renegotiation are from the same 'client' and merges them at the application layer.

解决方案

Contact the vendor for specific patch information.

另见

http://www.ietf.org/mail-archive/web/tls/current/msg03948.html

http://www.g-sec.lu/practicaltls.pdf

https://tools.ietf.org/html/rfc5746

插件详情

严重性: Medium

ID: 42880

文件名: ssl_renegotiation.nasl

版本: 1.48

类型: remote

系列: General

发布时间: 2009/11/24

最近更新时间: 2020/6/12

依存关系: ssl_supported_versions.nasl

风险信息

VPR

风险因素: Medium

分数: 6

CVSS v2

风险因素: Medium

基本分数: 5.8

时间分数: 4.5

矢量: AV:N/AC:M/Au:N/C:N/I:P/A:P

时间矢量: E:POC/RL:OF/RC:C

漏洞信息

必需的 KB 项: SSL/Supported

可利用: true

易利用性: Exploits are available

补丁发布日期: 2009/11/5

漏洞发布日期: 2009/11/4

参考资料信息

CVE: CVE-2009-3555

BID: 36935

CERT: 120541

CWE: 310