Improper input validation in Microsoft SQL Server 2017 Reporting Services
CVE-2020-1044
<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>
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.019 (78.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Microsoft Sql Server 2017 Reporting Services — versions 14.0.0
- Microsoft Sql Server 2019 Reporting Services — versions 15.0.0
- Microsoft Sql_server_reporting_services — versions 2017, 2019
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secure@microsoft.com (Patch, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-1044?
- CVE-2020-1044 is a medium-severity vulnerability in Microsoft SQL Server 2017 Reporting Services, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2020-09-11.
- How severe is CVE-2020-1044?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2020-1044 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.