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Security advisories — Feb 21, 2020

Microsoft SQL Server Reporting Services Remote Code Execution Vulnerability - CVE-2020-0618

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THE THREAT

On February 11th, 2020, Microsoft released security updates for a remote code execution vulnerability in Microsoft SQL Server Reporting Services [1]. Following this, on February 14th, 2020, security consulting firm MDSec published technical analysis which demonstrated how the vulnerability can be exploited. Successful exploitation could allow an attacker to execute code from the Report Server service account and lead to compromise of the target system [2].

What we’re doing about it

What you should do about it

Additional information

Microsoft initially published security guidance on this vulnerability following February’s “Patch Tuesday” [1]. The vulnerability exists in Microsoft SQL Server Reporting Services and could allow a low privileged attacker to exploit via a specially crafted request. Microsoft’s initial exploitability assessment determined exploitation to be less likely.

On Friday, February 14th, 2020, Soroush Dalili of MDSec published technical analysis of the vulnerability, including a Proof-of-Concept. While this does not indicate immediate mass exploitation by opportunistic attackers, it increases the likelihood of this occurring in the near term.

References:

[1] https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0618

[2] https://www.mdsec.co.uk/2020/02/cve-2020-0618-rce-in-sql-server-reporting-services-ssrs/

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