Scripting Engine Memory Corruption Vulnerability

1) Memory corruption

EUVDB-ID: #VU5076

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2016-0187

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to boundary error in the Scripting Engine when handling malicious files. A remote attacker can create a specially crafted content, trick the victim into opening it, trigger memory corruption and execute arbitrary code.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Mitigation

Install updates from Microsoft website.

Vulnerable software versions

Microsoft JScript: 5.8

Microsoft Internet Explorer: 9 - 11

VBScript: 5.8

CPE2.3

• cpe:2.3:a:microsoft:microsoft_jscript:5.8:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_internet_explorer:9:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_internet_explorer:10:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_internet_explorer:11:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:vbscript:5.8:*:*:*:*:*:*:*

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2016-0187

Q & A

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?

No. We are not aware of malware exploiting this vulnerability.