Posts tagged: security

A belated writeup of CVE-2022-28201 in MediaWiki

In December 2021, I discovered CVE-2022-28201, which is that it's possible to get MediaWiki's Title::newMainPage() to go into infinite recursion. More specifically, if the local interwikis feature is configured (not used by default, but enabled on Wikimedia wikis), any on-wiki administrator could fully brick the wiki by editing the [[MediaWiki:Mainpage]]…

Wiki-leak

Today's #MediaWiki security release fixes a pretty bad wiki-leak: https://w.wiki/4ZAeThere's a pretty simple mitigation that can be applied via configuration in LocalSettings.php if you can't patch immediately.Fixes are out for Debian packages, the "official" Docker image, and should land in my Ubuntu PPA for focal/bionic shortly...

Choosing a web browser, updated

You're seeing the world through a web browser; what does it see about you? As part of my work on the Freedom of the Press Foundation's Digital Security Team, I updated our guide comparing the privacy and security features of popular browsers in 2020.https://freedom.press/training/-depth-guide-choosing-web-browser/