CVE-2023-1233 — Insufficient policy enforcement in Resource Timing in Google Chrome prior to 111

Insufficient policy enforcement in Resource Timing in Google Chrome prior to 111.0.5563.64 allowed an attacker who convinced a user to install a malicious extension to obtain potentially sensitive information from API via a crafted Chrome Extension. (Chromium security severity: L

01What is this vulnerability?

Insufficient policy enforcement in Resource Timing in Google Chrome prior to 111.0.5563.64 allowed an attacker who convinced a user to install a malicious extension to obtain potentially sensitive information from API via a crafted Chrome Extension. (Chromium security severity: Low)

02Affected products

Vendor	Product	Versions
Google	Chrome	111.0.5563.64

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-03-07T21:42:19.013Z
• Last modified: 2024-10-10T19:21:53.808Z

09References

• chromereleases.googleblog.com — https://chromereleases.googleblog.com/2023/03/stable-channel-update-for-desktop.…
• crbug.com — https://crbug.com/1045681