瑞昱Realtek音效晶片缺陷︰全球PC遭殃 - 3C

By Damian
at 2016-11-24T13:24
at 2016-11-24T13:24
Table of Contents
在防止駭客竊取隱私資訊方面人們通常都會更多關注軟體防護
比如安裝防火牆、防毒軟體,了不起的弄一個硬碟物理加密。
不過,駭客們目前已經另闢蹊徑
找到了我們電腦上硬體上最隱蔽的環節來實施攻擊——音效卡。而且中招率接近100%!
以色列Ben Gurion大學的研究者寫出了一段名為“Speake(a)r”的代碼
將它植入電腦之後便會挾持音效卡
即使在麥克風被禁用的情況下也能將耳機、喇叭作為收聲設備進行監聽。
研究者表示,這種堅挺手段的實現依賴於Realtek音訊晶片的一處設計缺陷
目前的Realtek音訊晶片有一個特殊功能,在一定條件下可以將信號輸出線路反轉成為信
號輸入線路
這種功能的確方便了用戶,但也給駭客提供了機會。
研究人員稱,因為幾乎所有個人PC都在使用Realtek音訊晶片
(包括主機板內建音效卡和獨立音效卡),因此這項缺陷所影響的範圍是全球性的
而且由於是硬體層面的缺陷,所以目前並沒有很好的方法來防止借助這種技術實施的攻擊
只能期待下一代Realtek音訊晶片可以改善設計。
來源︰http://news.mydrivers.com/1/509/509075.htm
來不及了,頭都洗下去了,電腦都組了
就無視吧
--
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