Security restrictions bypass in Microsoft WordPad

1) Security restrictions bypass

EUVDB-ID: #VU13781

Risk: Low

CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-8307

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The vulnerability exists due to improper handling of embedded OLE objects by Microsoft WordPad. A remote unauthenticated attacker can trick the victim into opening a specially crafted document file designed to exploit the vulnerability and bypass content blocking.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 7 - 10

Windows Server: 2008 - 2016 10.0.14393.10

CPE2.3

• cpe:2.3:o:microsoft:windows:8.1 RT:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2012:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2012 R2:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2008:*:*:*:*:*:*:*

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8307

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.