SB2017031441 - Microsoft Active Directory Federation Services Information Disclosure Vulnerability



SB2017031441 - Microsoft Active Directory Federation Services Information Disclosure Vulnerability

Published: March 14, 2017

Security Bulletin ID SB2017031441
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) Information disclosure (CVE-ID: CVE-2017-0043)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

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


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

The vulnerability exists due to a flaw in Windows Active Directory Federation Services (ADFS) when handling XML External Entities. A remote authenticated attacker can send a specially crafted request to the ADFS service and gain access to important data.

Successful exploitation of this vulnerability results in information disclosure.


Remediation

Install update from vendor's website.