CVE-2018-6115 — Inappropriate setting of the SEE_MASK_FLAG_NO_UI flag in file downloads in Googl

Inappropriate setting of the SEE_MASK_FLAG_NO_UI flag in file downloads in Google Chrome prior to 66.0.3359.117 allowed a remote attacker to potentially bypass OS malware checks via a crafted HTML page.

01What is this vulnerability?

Inappropriate setting of the SEE_MASK_FLAG_NO_UI flag in file downloads in Google Chrome prior to 66.0.3359.117 allowed a remote attacker to potentially bypass OS malware checks via a crafted HTML page.

02Affected products

Vendor	Product	Versions
Google	Chrome	unspecified

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: 2018-12-04T17:00:00.000Z
• Last modified: 2024-08-05T05:54:52.867Z

09References

• chromereleases.googleblog.com — https://chromereleases.googleblog.com/2018/04/stable-channel-update-for-desktop.…
• security.gentoo.org — https://security.gentoo.org/glsa/201804-22
• crbug.com — https://crbug.com/819809
• www.securityfocus.com — http://www.securityfocus.com/bid/103917