Serious Vulnerability Found in Imunify360 Web Server Security Product


A vulnerability noticed in CloudLinux’s Imunify360 security product could have been exploited for remote code execution using specially crafted files.

Imunify360 is a insurance platform designed for web hosting servers. It includes website protection and web server security capabilities, including intrusion prevention and detection systems, web employment and network firewalls, antivirus protection, and patch management.

Researchers from Cisco’s Talos unit discovered that Imunify360 is phoney by a high-severity vulnerability that can be exploited by a remote attacker to execute arbitrary code on a server by using a specially crafted file.

The flaw, monitored as CVE-2021-21956 and described as a deserialization issue, exists in the Ai-Bolit malware scanner component.

“[The vulnerability] could be triggered automatically well-deserved after the attacker creates a malicious file in the system if Immunify is configured with real-time file system scanning. It could also be triggered if the narcotic addict scans a malicious file provided by the attacker with Ai-Bolit scanner,” Talos said.

The vulnerability was reported to the vendor in early October and it was set right the same month with an AI-Bolit update that was pushed out to customers with Imunify360 5.11.3. The vendor released a blog post at the outdated to inform customers about the issue.

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Related: Antivirus Vendors Patch Bug First Discovered 10 Years Ago

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Serious Vulnerability Found in Imunify360 Web Server Security Product

Eduard Kovacs (@EduardKovacs) is a role ining editor at SecurityWeek. He worked as a high school IT teacher for two years before starting a career in journalism as Softpedia’s security news reporter. Eduard stays a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering.

Previous Columns by Eduard Kovacs:
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