Closure JavaScript Library introduced XSS issue in Google Search and potentially other services

cyber

A change made months ago in an open-source JavaScript library introduced a cross-site scripting (XSS) vulnerability in Google Search.

The Japanese security researcher Masato Kinugawa discovered an XSS vulnerability in Google Search that was introduced with a change made months ago in an open-source JavaScript library.

The library is named Closure and according to the expert it fails to properly sanitize user input. Closure Library is a powerful, low-level JavaScript library designed for building complex and scalable web applications. It is used by many Google web applications, such as Google Search, Gmail, Google Docs, Google+, Google Maps, and others.

The flaw could be potentially exploited by threat actors to carry out phishing attacks and other malicious activities.

According to an analysis conducted by LiveOverflow, the XSS vulnerability was apparently introduced on September 26, 2018, when a sanitization mechanism was removed after the review of the user interface design.


View image on Twitter

View image on Twitter
Google Search xss

The design change was reverted on February 22, 2019, Google confirmed to have quickly addressed the vulnerability shortly after learning of its existence.

The analysis of the comments posted by developers when the change was reverted revealed that the bug was related to an HTML sanitizer. The issue was the root cause of the introduction of an XSS flaw in the Google Web Server (GWS) software.

Experts at LiveOverflow speculated the vulnerability likely affected other Google products that use the Closure library.

LiveOverflow has published a video PoC for the vulnerability:

Source : https://securityaffairs.co/wordpress/83199/hacking/google-search-xss-flaw.html

Laisser un commentaire

Votre adresse de messagerie ne sera pas publiée. Les champs obligatoires sont indiqués avec *

Next Post

Computer systems in the City of Albany hit in Ransomware Attack

Another ransomware attack made the headlines, this time the victim is the City of Albany, its computer systems were infected with the malware. Computer systems in the City of Albany, New York, were infected with ransomware over the weekend that disrupted some municipal computers. According to Albany Mayor Kathy Sheehan, no personal information belonging […]