Internet Explorer Information Disclosure Vulnerability

1) Information disclosure

EUVDB-ID: #VU992

Risk: High

CVSSv3.1: 4.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N/E:H/RL:O/RC:C]

CVE-ID: CVE-2016-3298

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The vulnerablity exists due to improper handling of objects in memory by the Internet Messaging API. A remote attacker can create a specially crafted content, trick the victim into opening it, bypass security restrictions and determine the existence of arbitrary files.

Successful exploitation of the vulnerability results in information disclosure on the vulnerable system.

Note: the vulnerability was being actively exploited.

Mitigation

Install updates from Microsoft website.

Vulnerable software versions

Microsoft Internet Explorer: 9 - 11

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2016-3298

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.