CVE-2021-20028KEV · OVERDUECWE-89

SonicWall Secure Remote Access (SRA) SQL Injection Vulnerability

Critical · published August 4, 2021

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 9.8. It is confirmed in active exploitation. It sits in the 98.2th percentile for exploit probability.

1650
days past CISA
deadline
CVSS v3.1
9.8
EPSS
30%
Percentile
98.2
In the wild
Confirmed
What it is

🚨 A tiny mistake in SQL handling has turned into a massive vulnerability! This SQL injection flaw in end-of-life Secure Remote Access appliances could spell disaster for users still running these devices! 🔥 Think of it as a restaurant that forgets to check the ingredients for an order. If they don’t validate what’s coming in, they might inadvertently serve up a dish that’s harmful — just like this SQL injection lets an attacker slip in malicious commands without a second glance. An attacker could exploit this vulnerability to take control of the appliances, potentially compromising sensitive data or even executing arbitrary commands. The stakes are high, folks—this could lead to unauthorized access to networks or systems, which is absolutely devastating!

Put simply

Think of it as a restaurant that forgets to check the ingredients for an order. If they don’t validate what’s coming in, they might inadvertently serve up a dish that’s harmful — just like this SQL injection lets an attacker slip in malicious commands without a second glance. This SQL injection vulnerability arises from improper handling of SQL commands, allowing an attacker to manipulate queries and gain unauthorized access to the database. Affected products include SRA appliances running all versions of 8.x firmware and 9.0.0.9-26sv or earlier.

What to do

An attacker could exploit this vulnerability to take control of the appliances, potentially compromising sensitive data or even executing arbitrary commands. The stakes are high, folks—this could lead to unauthorized access to networks or systems, which is absolutely devastating! It's crucial to disable these appliances immediately and replace them with supported versions. Ensure all firmware is updated to the latest, patched versions as soon as possible. Regularly audit your equipment to identify any instances of unpatched vulnerabilities. You've got this! With the right actions, you can lock down your systems and keep your data safe! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.30084 · 98.2th percentile
Weakness
CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Published
2021-08-04T19:10Z
KEV added
2022-03-28 · due 2022-04-18
EPSS history
Timeline
  • 28 MAR 00:00Z
    Added to CISA KEV — remediate by Apr 18
    kev
  • 04 AUG 19:10Z
    Improper neutralization of a SQL Command leading to SQL Injection vulnerability impacting end-of-life Secure Remote Access (SRA) products, specifically the SRA…
    cvelistv5