Vulnerability Report

CVE-2021-20041

Title: Unauthenticated DoS in SMA100 /fileshare/sonicfiles/sonicfiles

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2021-20041.

CWE Category CWE-835

Published Date Dec 08, 2021

Modified Date Nov 21, 2024

Exploit Status Not Found

Score 7.5 CVSS v3.1

Exploit Probability (EPSS)

6.78%

Vulnerability Summary

CVE-2021-20041: An unauthenticated and remote adversary can consume all of the device's CPU due to crafted HTTP requests sent to SMA100 /fileshare/sonicfiles/sonicfiles resulting in a loop with unreachable exit condition. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.

Impacted Vendors

sonicwall 5

Reference Links

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026 https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026

CVSS v3.1

Source Entity [email protected]

Severity HIGH

7.5

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0

Source Entity [email protected]

Severity HIGH

7.8

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-20041 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

November 21, 2024 MODIFIED

Vulnerability data or affected products updated.

December 08, 2021 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


                                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.