by Kastro
Paper/Archive/CVE-2024-45489

CVE-2024-45489

the_browser_company arc — Arc before 2024-08-26 allows remote code execution in JavaScript boosts.

EPSS 1%public exploitCVSS 9.8
critical.is priorityof 100
53
CVSS 9.8 (ADP)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 69.1.691 × 2013.8Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
n/an/a–CNA
arc< 2024-08-262024-08-26CISA-ADP

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

refkibty.town/blog/arcrefnews.ycombinator.com/item?id=41597250refarc.net/blog/CVE-2024-45489-incident-response