Vulnerability identifier: #VU14368
Vulnerability risk: Critical
CVSSv3.1: 9.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-416
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Microsoft Internet Explorer
Client/Desktop applications /
Web browsers
Vendor: Microsoft
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a use-after-free error in VBScript when the scripting engine handles objects in memory in Internet Explorer. A remote unauthenticated attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Note: The vulnerability has been exploited in the wild.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Microsoft Internet Explorer: 9 - 11
External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8373
http://blog.trendmicro.com/trendlabs-security-intelligence/use-after-free-uaf-vulnerability-cve-201...
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.