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uBlock, I exfiltrate: exploiting ad blockers with CSS
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<blockquote data-quote="ForgottenSeer 92963" data-source="post: 967507"><p><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite110" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /> that is not the solution for this problem</p><p></p><p>It is not the AdGuard software which will keep safe, but ONLY using AdGuard's filter lists which will keep you safe, because Adguard's filter lists are maintained under the supervision of AdGuard these list are maintained by a closed trusted group. When list are maintained by an open community (like easylist) one of the maintainers could turn bad, he/she could misuse one of the powerful commands (<a href="https://www.bleepingcomputer.com/news/security/adblock-plus-filters-can-be-exploited-to-run-malicious-code/" target="_blank">example</a>).</p><p></p><p>This is one of the reasons (I think) AdGuard uses a slightly different code and parameters for complex rules. AdGuard has an automated import of ABP filters and uBO filters. During the conversion e.g. ##+js(noeval) to #%#//scriptlet('noeval'), AdGuard has an option to check and sanatize (reject) malformed or invalid commands.</p><p></p><p>This is why I would advise uBO users (when they don't use my <a href="https://github.com/Kees1958/W3C_annual_most_used_survey_blocklist" target="_blank">blocklist </a><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite109" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> ) to only use AdGuard maintained filter lists in uBO. Use the predefined AG filter lists in uBO, but replace Easylist and EasyPrivacy with AG Easylist (<a href="https://filters.adtidy.org/extension/ublock/filters/101_optimized.txt" target="_blank">optimized</a>) and AG EasyPrivacy (<a href="https://filters.adtidy.org/extension/ublock/filters/118_optimized.txt" target="_blank">optimized</a>). You can find your AG specific country code filter at <a href="https://kb.adguard.com/en/general/adguard-ad-filters#filters" target="_blank">AG-website</a>.</p></blockquote><p></p>
[QUOTE="ForgottenSeer 92963, post: 967507"] ;) that is not the solution for this problem It is not the AdGuard software which will keep safe, but ONLY using AdGuard's filter lists which will keep you safe, because Adguard's filter lists are maintained under the supervision of AdGuard these list are maintained by a closed trusted group. When list are maintained by an open community (like easylist) one of the maintainers could turn bad, he/she could misuse one of the powerful commands ([URL='https://www.bleepingcomputer.com/news/security/adblock-plus-filters-can-be-exploited-to-run-malicious-code/']example[/URL]). This is one of the reasons (I think) AdGuard uses a slightly different code and parameters for complex rules. AdGuard has an automated import of ABP filters and uBO filters. During the conversion e.g. ##+js(noeval) to #%#//scriptlet('noeval'), AdGuard has an option to check and sanatize (reject) malformed or invalid commands. This is why I would advise uBO users (when they don't use my [URL='https://github.com/Kees1958/W3C_annual_most_used_survey_blocklist']blocklist [/URL]:) ) to only use AdGuard maintained filter lists in uBO. Use the predefined AG filter lists in uBO, but replace Easylist and EasyPrivacy with AG Easylist ([URL='https://filters.adtidy.org/extension/ublock/filters/101_optimized.txt']optimized[/URL]) and AG EasyPrivacy ([URL='https://filters.adtidy.org/extension/ublock/filters/118_optimized.txt']optimized[/URL]). You can find your AG specific country code filter at [URL='https://kb.adguard.com/en/general/adguard-ad-filters#filters']AG-website[/URL]. [/QUOTE]
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