Remote Code Execution in Microsoft SQL Server

1) Buffer overflow

EUVDB-ID: #VU19097

Risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-1068

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error when processing functions in Microsoft SQL Server Database Engine. A remote attacker can submit a specially crafted SQL query, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft SQL Server: 2014 12.0.2000.8 - 2017 14.0.1000.169

CPE2.3

• cpe:2.3:a:microsoft:microsoft_sql_server:2014:12.0.2000.8:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_sql_server:2016:13.0.1601.5:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_sql_server:2017:14.0.1000.169:*:*:*:*:*:*

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1068

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.