Vulnerability identifier: #VU25231

Vulnerability risk: Medium

CVSSv3.1: 7 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C]

CVE-ID: CVE-2020-0618

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Microsoft SQL Server
Server applications / Database software

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insufficient validation of page requests. A remote authenticated attacker can submit a specially crafted page request to the affected Reporting Services instance and execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft SQL Server: 2014 12.0.2000.8, 2016 13.0.1601.5, 2012 11.0.2100.60

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0618
http://github.com/rapid7/metasploit-framework/tree/master/modules/exploits/windows/http/ssrs_navcorrector_viewstate.rb

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.