CyberSecBulletin
CVE-2022-2323NVD status: Modified

SonicWall Switch: Improper Neutralization of Special Elements used in a Command

Published Updated By the CyberSecBulletin desk

CVE-2022-2323 is a high-severity improper neutralization of special elements used in a command vulnerability in SonicWall Switch from SonicWall, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. Affected SonicWall Switch versions: 1.1.1.0-2s and earlier. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 6.36% chance of exploitation within 30 days, which is in the top 6.24% of all scored CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update Sws12-10fpoe Firmware to 1.2.0.0-3 or a later version.
  2. Update Sws12-8 Firmware to 1.2.0.0-3 or a later version.
  3. Update Sws12-8poe Firmware to 1.2.0.0-3 or a later version.
  4. Read the advisory on psirt.global.sonicwall.com for workarounds and exact fixed builds.

Affected products and versions

VendorProductAffected versionsFixed in
SonicWallSonicWall Switch1.1.1.0-2s and earlierNot stated
SonicWallSws12-10fpoe Firmwarebefore 1.2.0.0-31.2.0.0-3
SonicWallSws12-8 Firmwarebefore 1.2.0.0-31.2.0.0-3
SonicWallSws12-8poe Firmwarebefore 1.2.0.0-31.2.0.0-3
SonicWallSws14-24 Firmwarebefore 1.2.0.0-31.2.0.0-3
SonicWallSws14-24fpoe Firmwarebefore 1.2.0.0-31.2.0.0-3
SonicWallSws14-48 Firmwarebefore 1.2.0.0-31.2.0.0-3
SonicWallSws14-48fpoe Firmwarebefore 1.2.0.0-31.2.0.0-3

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
LowA basic user account is enough.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.

Official description

Improper neutralization of special elements used in a user input allows an authenticated malicious user to perform remote code execution in the host system. This vulnerability impacts SonicWall Switch 1.1.1.0-2s and earlier versions

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Improper Neutralization of Special Elements used in a Command

The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

How developers prevent this class of flaw

  • If at all possible, use library calls rather than external processes to recreate the desired functionality.
  • If possible, ensure that all external commands called from the program are statically created.
  • Run time: Run time policy enforcement may be used in an allowlist fashion to prevent use of any non-sanctioned commands.

More Improper Neutralization of Special Elements used in a Command vulnerabilities (CWE-77)

Timeline

  1. CVE record published.
  2. Record last changed materially (score, affected products, status or references).

References

Recent Improper Neutralization of Special Elements used in a Command vulnerabilities

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