Google Rolls Back Recently Introduced Chrome CSRF Protection
Google last week announced that it has started rolling back a cross-site request forgery (CSRF) protection introduced in early February with the release of Chrome 80 in the stable channel.
Initially announced in May 2019, the protection involves Chrome enforcing a new secure-by-default cookie classification system, where cookies that haven’t declared a SameSite value being treated as SameSite=Lax cookies.
As part of the change, only cookies set as SameSite=None; Secure are made available in third-party contexts, but only over secure connections.
Since early February, Google has been gradually rolling out the protection to its users, while keeping an eye on ecosystem impact, and also contacting individual websites and services to ensure cookies are labeled correctly.
Due to the current COVID-19 pandemic, however, the Internet search giant has decided to temporarily roll back the enforcement of SameSite cookie labeling. The rollback started on Friday, April 3.
“While most of the web ecosystem was prepared for this change, we want to ensure stability for websites providing essential services including banking, online groceries, government services and healthcare that facilitate our daily life during this time,” Google says.
The rollback should have no impact on organizations, users or websites.
Google says it will provide notice when the enforcement will resume, something that it estimates will likely happen over the summer.
A few weeks back, the company announced that it decided to skip Chrome 82 entirely, also due to the COVID-19 pandemic. Furthermore, the coronavirus crisis forced Google, Microsoft, and Mozilla to delay plans to remove support for TLS 1.0 and 1.1 from their browsers.