SonicWall SonicOS Buffer Overflow Vulnerability

critical Nessus Plugin ID 141474
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Synopsis

The remote host is affected by a Buffer Overflow vulnerability, leading to Denial of Service, and potentially to Arbitrary Code Execution.

Description

According to its self-reported version, the remote SonicWall firewall is running a version of SonicOS that is affected by a buffer overflow vulnerability, allowing a remote attacker to cause Denial of Service (DoS), and potentially execute arbitrary code by sending a malicious request to the firewall. This vulnerability affected SonicOS Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version 7.0.0.0.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to the relevant fixed version referenced in the vendor security advisory.

See Also

http://www.nessus.org/u?c667b9f5

Plugin Details

Severity: Critical

ID: 141474

File Name: sonicwall_SNWLID-2020-0010.nasl

Version: 1.4

Type: combined

Family: Firewalls

Published: 10/16/2020

Updated: 10/23/2020

Dependencies: os_fingerprint.nasl

Risk Information

CVSS Score Source: CVE-2020-5135

VPR

Risk Factor: Critical

Score: 9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:sonicwall:sonicos

Required KB Items: Host/OS

Exploit Ease: No known exploits are available

Patch Publication Date: 10/12/2020

Vulnerability Publication Date: 10/12/2020

Reference Information

CVE: CVE-2020-5135