CVE-2020-1044

MEDIUM

SQL Server Reporting Services - Auth Bypass

Title source: llm
STIX 2.1

Description

<p>A security feature bypass vulnerability exists in SQL Server Reporting Services (SSRS) when the server improperly validates attachments uploaded to reports. An attacker who successfully exploited this vulnerability could upload file types that were disallowed by an administrator.</p> <p>To exploit the vulnerability, an authenticated attacker would need to send a specially crafted request to an affected SSRS server.</p> <p>The update addresses the vulnerability by modifying how SSRS validates attachment uploads.</p>

References (1)

Core 1
Core References

Scores

CVSS v3 4.3
EPSS 0.0191
EPSS Percentile 77.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Details

CWE
CWE-20
Status published
Products (2)
microsoft/sql_server_reporting_services 2017
microsoft/sql_server_reporting_services 2019
Published Sep 11, 2020
Tracked Since Feb 18, 2026