SB2020090813 - Security restrictions bypass in SQL Server Reporting Services (SSRS)



SB2020090813 - Security restrictions bypass in SQL Server Reporting Services (SSRS)

Published: September 8, 2020

Security Bulletin ID SB2020090813
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Arbitrary file upload (CVE-ID: CVE-2020-1044)

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient validation of attachments uploaded to reports in SQL Server Reporting Services (SSRS). A remote attacker can upload file types that were disallowed by an administrator.


Remediation

Install update from vendor's website.