#VU82060 Stack-based buffer overflow in SonicOS - CVE-2023-41711

Vulnerability identifier: #VU82060

Vulnerability risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-41711

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SonicOS
Operating systems & Components / Operating system

Vendor: SonicWall

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the sonicwall.exp and prefs.exp endpoints. A remote authenticated user can send a specially crafted HTTP request to the affected URL, trigger a stack-based buffer overflow and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SonicOS: before 6.5.4.4-44v-21-2340

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External links
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0012

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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.