A vulnerability in Check Point’s popular ZoneAlarm antivirus and firewall allows attackers to escalate their privileges on a system running the security software. The vendor has released an update that should address the flaw.
The issue was discovered last year by Illumant, a company that provides security assessment and compliance solutions. The firm said the vulnerability exists due to the way the application’s developers used Microsoft’s Windows Communication Foundation (WCF) framework. Since WCF was initially codenamed “Indigo,” Illumant has dubbed the vulnerability “OwnDigo.”
Illumant’s findings are based on previous research by Fabius Artrel on privilege escalation and code execution vulnerabilities in applications that use .NET-based WCF services, and research by Matt Graeber on code-signing attacks.
According to Illumant, the vulnerability allows an attacker with limited access to the targeted device to execute arbitrary commands with SYSTEM privileges by abusing a vulnerable ZoneAlarm service. This can be leveraged to add a low-privileged user account to the administrators group.
However, an attack can only be conducted if the attacker’s exploit and payload files are or appear to be signed by Check Point. In order to achieve this, Illumant researchers created a fake code-signing certificate that impersonates Check Point – a user with limited privileges can do this – and installed it on the targeted system. The certificate was then used to sign the exploit and payload code, which could then be executed to elevate privileges.
Illumant recently published a blog post containing technical details and a video showing an overview of the attack.
The company praised Check Point for the way it handled the vulnerability report. The vendor patched the security bug in October with the release of ZoneAlarm Free Antivirus + Firewall version 15.4.062.17802.
Check Point’s security acknowledgements page shows that only a handful of issues were discovered in ZoneAlarm in the past couple of years.
While Illumant demonstrated the attack against ZoneAlarm, the company warns that this is a new class of vulnerabilities that could impact any .NET application using WCF. It has advised software developers to assess their own apps and WCF implementations to ensure that they are not impacted.
Related: Antivirus Quarantine Flaws Allow Privilege Escalation
Related: Google Researcher Finds Certificate Flaws in Kaspersky Products
Related: Sophos Patches Privilege Escalation Flaws in SafeGuard Products
Eduard Kovacs (@EduardKovacs) is a contributing 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 holds a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering.
More from Eduard Kovacs
- Intel Boasts Attack Surface Reduction With New 13th Gen Core vPro Platform
- Dole Says Employee Information Compromised in Ransomware Attack
- High-Severity Vulnerabilities Found in WellinTech Industrial Data Historian
- CISA Expands Cybersecurity Committee, Updates Baseline Security Goals
- Exploitation of 55 Zero-Day Vulnerabilities Came to Light in 2022: Mandiant
- Organizations Notified of Remotely Exploitable Vulnerabilities in Aveva HMI, SCADA Products
- Waterfall Security, TXOne Networks Launch New OT Security Appliances
- Hitachi Energy Blames Data Breach on Zero-Day as Ransomware Gang Threatens Firm
Latest News
- CISA, NSA Issue Guidance for IAM Administrators
- Analysis: SEC Cybersecurity Proposals and Biden’s National Cybersecurity Strategy
- Intel Boasts Attack Surface Reduction With New 13th Gen Core vPro Platform
- Cisco Patches High-Severity Vulnerabilities in IOS Software
- ‘Nexus’ Android Trojan Targets 450 Financial Applications
- Tackling the Challenge of Actionable Intelligence Through Context
- Dole Says Employee Information Compromised in Ransomware Attack
- Backslash Snags $8M Seed Financing for AppSec Tech
