Arbitrary file upload in Microsoft SQL Server Reporting Services (SSRS) - CVE-2020-1044
Published: September 8, 2020
Vulnerability identifier: #VU46407
CSH Severity: Medium
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-1044
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Microsoft SQL Server Reporting Services (SSRS)
How to mitigate CVE-2020-1044
Install updates from vendor's website.