CVE-2024-45489 Information

Description

Arc before 2024-08-26 allows remote code execution in JavaScript boosts. Boosts that run JavaScript cannot be shared by default; however (because of misconfigured Firebase ACLs) it is possible to create or update a boost using another user’s ID. This installs the boost in the victim’s browser and runs arbitrary Javascript on that browser in a privileged context. NOTE: this is a no-action cloud vulnerability with zero affected users.

Reference

https://kibty.town/blog/arc/ https://news.ycombinator.com/item?id=41597250 https://arc.net/blog/CVE-2024-45489-incident-response