LDAP Elevation of Privilege Vulnerability



Published: 2017-04-11
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-0166
CWE-ID CWE-119
Exploitation vector Local network
Public exploit N/A
Vulnerable software
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Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU6255

Risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-0166

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error when processing LDAP requests. A remote attacker can send a specially crafted LDAP requests to domain controller, trigger buffer overflow and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to execute arbitrary code on the system with elevated privileges.

Mitigation

Install updates from Microsoft website.

Vulnerable software versions

Windows: 7, 8.1, 10, RT 8.1, Vista

Windows Server: 2008, 2008 R2, 2012, 2012 R2, 2016

CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0166

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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



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