CVE-2021-42258: BQE BillQuick Web Suite SQL Injection Vulnerability
CVE-2021-42258 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2021-11-03
BQE BillQuick Web Suite contains a SQL injection vulnerability in the txtID (username) parameter. An unauthenticated remote attacker can exploit this to execute arbitrary code as the MSSQLSERVER$ service account via xp_cmdshell, which has been observed in the wild for ransomware deployment.
Quick answers
Is CVE-2021-42258 exploited in the wild?
Yes. CVE-2021-42258 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2021-42258?
Critical severity, with a CVSS score of 9.8, published 3 November 2021.
Which products and versions are affected?
BQE BillQuick Web Suite 2018 through 2021 before 22.0.9.1.
Is there a fix for CVE-2021-42258?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2021-42258 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2021-42258?
Check whether you run Bqe Billquick Web Suite. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
BQE BillQuick Web Suite 2018 through 2021 before 22.0.9.1
Timeline
2021-10-22: disclosed: NVD Published Date
2021-10-01: exploited: Exploited in the wild in October 2021 for ransomware installation.
2021-11-03: kev added: Date added to CISA Known Exploited Vulnerabilities Catalog.