More Than 4,400 Sophos Firewall Servers Remain Vulnerable To Critical Exploits

More than 4,400 Internet-exposed servers are running versions of the Sophos Firewall that's vulnerable to a critical exploit that allows hackers to execute malicious code, a researcher has warned. From a report: CVE-2022-3236 is a code-injection vulnerability allowing remote code execution in the User Portal and Webadmin of Sophos Firewalls. It carries a severity rating of 9.8 out of 10. When Sophos disclosed the vulnerability last September, the company warned it had been exploited in the wild as a zero-day. The security company urged customers to install a hotfix and, later on, a full-blown patch to prevent infection. According to recently published research, more than 4,400 servers running the Sophos firewall remain vulnerable. That accounts for about 6 percent of all Sophos firewalls, security firm VulnCheck said, citing figures from a search on Shodan. "More than 99% of Internet-facing Sophos Firewalls haven't upgraded to versions containing the official fix for CVE-2022-3236," VulnCheck researcher Jacob Baines wrote. "But around 93% are running versions that are eligible for a hotfix, and the default behavior for the firewall is to automatically download and apply hotfixes (unless disabled by an administrator). It's likely that almost all servers eligible for a hotfix received one, although mistakes do happen. That still leaves more than 4,000 firewalls (or about 6% of Internet-facing Sophos Firewalls) running versions that didn't receive a hotfix and are therefore vulnerable."

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