CVE-2018-8452 — An information disclosure vulnerability exists when the scripting engine does no

An information disclosure vulnerability exists when the scripting engine does not properly handle objects in memory in Microsoft browsers, aka "Scripting Engine Information Disclosure Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge.

01What is this vulnerability?

An information disclosure vulnerability exists when the scripting engine does not properly handle objects in memory in Microsoft browsers, aka "Scripting Engine Information Disclosure Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge.

02Affected products

Vendor	Product	Versions
Microsoft	ChakraCore	ChakraCore
Microsoft	Internet Explorer 11	Windows 10 for 32-bit Systems, Windows 10 for x64-based Systems, Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1703 for 32-bit Systems, Windows 10 Version 1703 for x64-based Systems, Windows 10 Version 1709 for 32-bit Systems, Windows 10 Version 1709 for x64-based Systems, Windows 10 Version 1803 for 32-bit Systems, Windows 10 Version 1803 for x64-based Systems, Windows 7 for 32-bit Systems Service Pack 1, Windows 7 for x64-based Systems Service Pack 1, Windows 8.1 for 32-bit systems, Windows 8.1 for x64-based systems, Windows RT 8.1, Windows Server 2008 R2 for x64-based Systems Service Pack 1, Windows Server 2012 R2, Windows Server 2016
Microsoft	Microsoft Edge	Windows 10 for 32-bit Systems, Windows 10 for x64-based Systems, Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1703 for 32-bit Systems, Windows 10 Version 1703 for x64-based Systems, Windows 10 Version 1709 for 32-bit Systems, Windows 10 Version 1709 for x64-based Systems, Windows 10 Version 1803 for 32-bit Systems, Windows 10 Version 1803 for x64-based Systems, Windows Server 2016

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: 2018-09-13T00:00:00.000Z
• Last modified: 2024-08-05T06:54:36.647Z

09References

• portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8452
• www.securityfocus.com — http://www.securityfocus.com/bid/105252
• www.securitytracker.com — http://www.securitytracker.com/id/1041623