SB2019021311 - Phishing attack in Microsoft Office



SB2019021311 - Phishing attack in Microsoft Office

Published: February 13, 2019

Security Bulletin ID SB2019021311
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Input validation error (CVE-ID: CVE-2019-0540)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to perform a phishing attack.

The vulnerability exists due to insufficient validation of URLs when processing Microsoft Office files. A remote attacker can create a specially crafted file, trick the victim into opening it and entering credentials.

Successful exploitation of the vulnerability may allow an attacker to perform a phishing attack and gain access to sensitive information.


Remediation

Install update from vendor's website.