CVE-2020-5135

SonicWall SonicOS Buffer Overflow Vulnerability

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

Yes

*KEV

Decision

*SSVC

Descriptions

A buffer overflow vulnerability in SonicOS allows 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.

Una vulnerabilidad de desbordamiento del búfer en SonicOS, permite a un atacante remoto causar una Denegación de servicio (DoS) y ejecutar potencialmente código arbitrario mediante el envío de una petición maliciosa al firewall. Esta vulnerabilidad afectó a SonicOS Gen 6 versiones 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv versión 6.5.4.v y Gen 7 versión 7.0.0.0

A buffer overflow vulnerability in SonicOS allows a remote attacker to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a malicious request to the firewall.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-12-31 CVE Reserved
2020-10-12 CVE Published
2022-03-15 Exploited in Wild
2022-04-05 KEV Due Date
2024-08-04 CVE Updated
2024-11-21 EPSS Updated
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2020-0010	2022-09-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Sonicwall Search vendor "Sonicwall"		Sonicos Search vendor "Sonicwall" for product "Sonicos"				<= 6.0.5.3 Search vendor "Sonicwall" for product "Sonicos" and version " <= 6.0.5.3"		-		Affected
Sonicwall Search vendor "Sonicwall"		Sonicos Search vendor "Sonicwall" for product "Sonicos"				>= 6.5.0.0 <= 6.5.1.11 Search vendor "Sonicwall" for product "Sonicos" and version " >= 6.5.0.0 <= 6.5.1.11"		-		Affected
Sonicwall Search vendor "Sonicwall"		Sonicos Search vendor "Sonicwall" for product "Sonicos"				>= 6.5.4.0 <= 6.5.4.7 Search vendor "Sonicwall" for product "Sonicos" and version " >= 6.5.4.0 <= 6.5.4.7"		-		Affected
Sonicwall Search vendor "Sonicwall"		Sonicos Search vendor "Sonicwall" for product "Sonicos"				7.0.0.0 Search vendor "Sonicwall" for product "Sonicos" and version "7.0.0.0"		-		Affected
Sonicwall Search vendor "Sonicwall"		Sonicosv Search vendor "Sonicwall" for product "Sonicosv"				<= 6.5.4.4 Search vendor "Sonicwall" for product "Sonicosv" and version " <= 6.5.4.4"		-		Affected