Remote code execution in Microsoft SQL Server



Published: 2023-04-11
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-23384
CWE-ID CWE-787
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Microsoft SQL Server
Server applications / Database software

Vendor Microsoft

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Out-of-bounds write

EUVDB-ID: #VU74884

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-23384

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error within the SQLcmd tool. A remote attacker can pass specially crafted data to the server, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft SQL Server: 2008 10.0.1019.17 - 2022 RC1 16.0.950.9

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-23384


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker 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.



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