SB2017031472 - Windows SMB Information Disclosure Vulnerability

Description

This security bulletin contains information about 1 security vulnerability.

1) Information disclosure (CVE-ID: CVE-2017-0147)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to an error when parsing requests in Microsoft Server Message Block 1.0 (SMBv1) server. A remote unauthenticated attacker can send specially crafted SMB packets and gain access to potentially sensitive data.

Successful exploitation of this vulnerability may allow an attacker to gain access to potentially sensitive information.

Note: this vulnerability has been exploited in the wild and is publicly known as EternalChampion exploit.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0147