CVE-2020-1044 SQL Server Reporting Services Security Feature Bypass Vulnerability
An authenticated attacker can bypass attachment validation in SQL Server Reporting Services to upload disallowed file types.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-1044?
CVE-2020-1044 is a medium-severity vulnerability in Microsoft SQL Server 2017 Reporting Services, published on 11 Sep 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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>
Weakness: CWE-20
Which versions are affected by CVE-2020-1044?
It affects 1 product.
Products include Microsoft Sql Server Reporting Services.
How do I fix CVE-2020-1044?
No fix has been published for CVE-2020-1044 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-1044 being exploited?
There is no known exploitation of CVE-2020-1044 in the wild and no public exploit code.
Sources
Also known as GHSA-j5c4-63f4-32wp.