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Characters from languages are such as Arabic, Hebrew are displayed from RTL (Right To Left) order in Opera 37.0.2192.105088 for Android, due to mishandling of several unicode characters such as U+FE70, U+0622, U+0623 etc and how they are rendered combined with (first strong character) such as an IP address or alphabet could lead to a spoofed URL. It was noticed that by placing neutral characters such as "/", "?" in filepath causes the URL to be flipped and displayed from Right To Left. However, in order for the URL to be spoofed the URL must begin with an IP address followed by neutral characters as omnibox considers IP address to be combination of punctuation and numbers and since LTR (Left To Right) direction is not properly enforced, this causes the entire URL to be treated and rendered from RTL (Right To Left). However, it doesn't have be an IP address, what matters is that first strong character (generally, alphabetic character) in the URL must be an RTL character.

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Opera 安全漏洞

Opera是挪威欧朋（Opera Software）公司所开发的一款Web浏览器，它支持多窗口浏览、可定制用户界面等。 基于Android系统的Opera 37.0.2192.105088版本中存在安全漏洞，该漏洞源于程序没有正确处理统一码字符。攻击者可利用该漏洞实施钓鱼攻击。

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