I investigated the inner workings of #Xiaomi's Mint Browser and summarized it in a blog article. In short: it's as bad as the Forbes article suggests, and even worse. That browser is spyware, exfiltrating an enormous amount of data.
Pro-tip when running a vulnerability disclosure program: rejecting mails with "malicious" attachments is not a good idea. You might also want to test this in advance and adjust configuration accordingly. Or at least provide an alternative way of uploading PoCs. #infosec
Long article doing a great job summing up typical issues with bug bounties, with @email@example.com providing valuable insights. Particularly "buying researches silence" is the reason I barely do bug bounties any more. #BugBounty #infosec
Yahoo! and AOL implement an account recovery flow which can be summed up as "please hijack me." If you use them, you are better be very certain you control that recovery phone number of yours.
Want do use #jQuery for a new project? Don't, it makes writing secure code unnecessarily complicated. In fact, you should look for a way to get rid of it in your old projects as well, or at least minimize its potential security impact. #infosec #xss
Vulnerability in McAfee WebAdvisor: RCE from any website through the browser extension into the application, all the way to administrator privileges. Updates are finally available and should be installed ASAP. #McAfee #WebAdvisor #infosec #appsec
I know that everybody is tired of me talking about #Avast but this time it's a beefy RCE vulnerability. Avast Secure Browser could be trivially taken over by any website, allowing even execution of arbitrary OS commands. #infosec #appsec
Did you expect "Avira Browser Safety" to offer you shopping deals? Me neither, and I also didn't expect this to be implemented by running remote code in the context of the extension or any website. #Avira #infosec #privacy @Avira
My first article on #McAfee antivirus, detailing a bunch of issues rendering its web protection component ineffective. There will be more interesting findings to publish later. #infosec #appsec #antivirus
Same as yesterday's blog post but as a high-level overview without the technical details: Kaspersky applications do not protect an internal API properly, allowing any website to send commands. Yes, websites can still do it, merely with less impact. #infosec #appsec
I'll publish two blog posts on Kaspersky vulnerabilities this week, first one is now up. Here I demonstrate hijacking communication channels that the "Web Protect" component uses to communicate with the antivirus application. #infosec #appsec
Looking into #AVG and they demonstrate that #antivirus solutions breaking up HTTPS connections don't have to take over the invalid certificate page. So no security issues like the ones seen in #Kaspersky software.
Tavis Ormandy considers LastPass to be the best you can get as far as online password managers go. His experience is clearly different from mine, but if that's true, we are all screwed and there is no product which can be recommended. #infosec #passwords
Wrote an article on three vulnerabilities introduced by #Kaspersky Internet Security - a very typical scenario for antivirus vendors who will break up secure HTTPS connections in order to inspect them.
I'm having a discussion with a vendor, maybe you can help me out. What's the goal of a security advisory? #infosec
Wladimir Palant, software developer and security researcher, browser extensions expert. He/him
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