CVE-2023-0656

7.5HIGH

Key Information:

Vendor
SonicWall
Status
SonicOS
Vendor
CVE Published:
2 March 2023

Badges

👾 Exploit Exists🟡 Public PoC📰 News Worthy

Summary

A Stack-based buffer overflow vulnerability in the SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could cause an impacted firewall to crash.

Affected Version(s)

SonicOS SonicOS NSv 6.5.4.4-44v-21-1551 and earlier

SonicOS SonicOS NSsp 7.0.1-5083 and earlier

SonicOS SonicOS 7.0.1-5095 and earlier

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2022-22274_CVE-2023-0656
Created by BishopFox

News Articles

favicon imageTT-CSIRT: Trinidad and Tobago Cyber Security Incident Response Team

TT-CSIRT – 424 17.01.24: Patch SonicWall Firewall Still Vulnerable to CVE-2023-0656 & CVE-2022-22274

TT-CSIRT – 424 17.01.24: Patch SonicWall Firewall Still Vulnerable to CVE-2023-0656 and CVE-2022-22274 Severity: Critical Overview: SonicWall Firewalls CVE-2022-22274 and CVE-2023-0656 have...

1 year ago

favicon imageTechzine Europe

More than 178,000 SonicWall firewalls vulnerable to simple DoS attack

More than 178,000 SonicWall firewalls are vulnerable to Denial of Service (DoS) and Remote Code Execution (RCE) attacks due to two vulnerabilities. The

1 year ago

favicon imageDark Reading

178K+ SonicWall Firewalls Vulnerable to DoS, RCE Attacks

Two flaws discovered a year apart are ostensibly the same with slightly different exploit paths, exposing corporate networks to risk and potential intrusion.

1 year ago

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-202...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 📰

    First article discovered by Bleeping Computer

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre Database1 Proof of Concept(s)5 News Article(s)
.