CVE-2021-42258KEV · OVERDUE

BQE BillQuick Web Suite SQL Injection Vulnerability

Critical · published October 22, 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 99.5th percentile for exploit probability.

1802
days past CISA
deadline
CVSS v3.1
9.8
EPSS
74%
Percentile
99.5
In the wild
Confirmed
What it is

🔥 SQL injection is the silent assassin in BQE BillQuick Web Suite, and it’s been exploited in the wild for ransomware! 🚨 This vulnerability is like leaving the back door to your office wide open while a thief sneaks in unnoticed, using a cleverly crafted username to gain access. Once inside, they can execute commands with the same power as your server, like a rogue employee wreaking havoc! If successfully exploited, attackers can run arbitrary code on your server, potentially installing ransomware or exfiltrating sensitive data. This could lead to a full-blown security crisis, causing massive disruptions and financial loss. It's absolutely devastating!

Put simply

This vulnerability is like leaving the back door to your office wide open while a thief sneaks in unnoticed, using a cleverly crafted username to gain access. Once inside, they can execute commands with the same power as your server, like a rogue employee wreaking havoc! This SQL injection vulnerability in BQE BillQuick Web Suite allows unauthenticated attackers to execute arbitrary commands through the txtID parameter. By leveraging xp_cmdshell, attackers can gain control over the database server and execute malicious code.

What to do

If successfully exploited, attackers can run arbitrary code on your server, potentially installing ransomware or exfiltrating sensitive data. This could lead to a full-blown security crisis, causing massive disruptions and financial loss. It's absolutely devastating! Immediately upgrade to version 22.0.9.1 or later to patch this vulnerability. Additionally, validate and sanitize all user inputs, particularly the txtID parameter, to prevent SQL injection attacks. Regular security audits can help catch vulnerabilities before they are exploited! You've got this! By taking these steps, you'll strengthen your defenses and enhance your security posture. 🛡️

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
0.74426 · 99.5th percentile
Published
2021-10-22T21:25Z
KEV added
2021-11-03 · due 2021-11-17
EPSS history
Timeline
  • 03 NOV 00:00Z
    Added to CISA KEV — remediate by Nov 17
    kev
  • 22 OCT 21:25Z
    BQE BillQuick Web Suite 2018 through 2021 before 22.0.9.1 allows SQL injection for unauthenticated remote code execution, as exploited in the wild in October…
    cvelistv5