Vulnerability Monitor

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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.

Published

2021-12-08T10:15:08.003

Last Modified

2024-11-21T05:45:50.287

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

6.9

Weaknesses
  • Type: Secondary
    CWE-835
  • Type: Primary
    CWE-835
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System sonicwall sma_200_firmware 9.0.0.11-31sv Yes
Operating System sonicwall sma_200_firmware 10.2.0.8-37sv Yes
Operating System sonicwall sma_200_firmware 10.2.1.1-19sv Yes
Hardware sonicwall sma_200 - No
Operating System sonicwall sma_210_firmware 9.0.0.11-31sv Yes
Operating System sonicwall sma_210_firmware 10.2.0.8-37sv Yes
Operating System sonicwall sma_210_firmware 10.2.1.1-19sv Yes
Hardware sonicwall sma_210 - No
Operating System sonicwall sma_410_firmware 9.0.0.11-31sv Yes
Operating System sonicwall sma_410_firmware 10.2.0.8-37sv Yes
Operating System sonicwall sma_410_firmware 10.2.1.1-19sv Yes
Hardware sonicwall sma_410 - No
Operating System sonicwall sma_400_firmware 9.0.0.11-31sv Yes
Operating System sonicwall sma_400_firmware 10.2.0.8-37sv Yes
Operating System sonicwall sma_400_firmware 10.2.1.1-19sv Yes
Hardware sonicwall sma_400 - No
Operating System sonicwall sma_500v_firmware 9.0.0.11-31sv Yes
Operating System sonicwall sma_500v_firmware 10.2.0.8-37sv Yes
Operating System sonicwall sma_500v_firmware 10.2.1.1-19sv Yes
Hardware sonicwall sma_500v - No
References