5、思科修补WebEx Chrome插件远程代码执行漏洞
标题:Cisco Patches Critical Flaw in WebEx Chrome Plugin
作者信息:January 24, 2017 , 8:32 am By Michael Mimoso
//BEGIN
A vulnerability in the Cisco WebEx Chrome Plugin, used by tens of millions for web conferencing in business environments, exposed computers to remote code execution.
思科的WebEx的Chrome浏览器插件被谷歌的安全研究人员发现了存在漏洞,这个漏洞的存在导致可远程启动Web会议,进而远程代码执行。该Web会议系统已经被广泛用于各种商业环境中。
//END
Ormandy describes his dissection of the vulnerability in the bug report. As the extension invokes a command to launch a meeting, Ormandy found that a number of properties are passed during the session, some juicy enough for code execution. WebEx, Ormandy said, ships a copy of Microsoft’s C Runtime, CRT, which he used to execute system calls.
“Unbelievably, that worked,” said Ormandy, who also published a proof-of-concept exploit.
Ormandy is known for a slate of public disclosures of popular security and business software, including LastPass, Sophos, Symantec, Kaspersky, FireEye and others that have been patched.
安全研究人员在报告中详细分析了该漏洞。该插件可以激活命令,启动一个会议进程。在此过程中,传递了很多特性,这些足够以启动代码执行。WebEx中含有一个微软的C执行库C Runtime(CRT),可以用来调用并执行系统调用。研究人员还公布了一个该漏洞的PoC概念执行代码。
该研究人员以前还曾经公布了流行安全软件以及商业软件的漏洞,涉及的厂商包括:LastPass、Sophos、Symantec、Kaspersky、FireEye等等,这些厂商均已经发布了相关的安全漏洞的补丁,当然也包括这个WebEx Chrome的插件RCE漏洞。
点评:补快! |