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Vulnerabilities Found in Several Fortinet Products

Vulnerability Lab has disclosed the details of several flaws discovered this year by its researchers in products from enterprise security solutions provider Fortinet.

Vulnerability Lab has disclosed the details of several flaws discovered this year by its researchers in products from enterprise security solutions provider Fortinet.

The security holes, most of which are stored and reflected cross-site scripting (XSS) issues, were reported by Vulnerability Lab in January, February and May. All the vulnerabilities have been patched by the vendor.

A majority of the flaws have been found in the web interface of the Fortinet FortiManager and FortiAnalyzer security management and reporting appliances.

According to Vulnerability Lab, the weaknesses can be exploited by a remote attacker with access to a low-privileged user account to inject arbitrary code into the application. Exploitation requires the victim to click on a link or visit a certain page containing the malicious code.

A filter bypass and multiple persistent XSS vulnerabilities have also been found in Fortinet’s FortiVoice enterprise phone systems. The flaws can be exploited by a remote, authenticated attacker, and they require a low or medium level of user interaction.

Researchers also disclosed multiple persistent XSS issues in the FortiCloud cloud-based wireless security and management system. An attacker who has access to the product’s Summary Report page can inject malicious code, which gets executed when a legitimate user visits the page.

Fortinet has published its own advisory for one of the flaws (CVE-2016-3196), but Vulnerability Lab believes the company will soon release advisories for the other issues as well. Users have been advised to update their Fortinet product installations.

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Researchers have published details and proof-of-concept (PoC) code for each of the vulnerabilities they have found.

Earlier this year, a researcher reported finding an SSH backdoor in older versions of FortiOS, the operating system powering Fortinet’s FortiGate firewall platform. The vulnerability was later identified in several other Fortinet products, but the company claimed there was no evidence that the backdoor was malicious. Nevertheless, experts immediately identified attempts to search the Web for vulnerable Fortinet devices.

Related: Fortinet Unveils New Security Fabric, High-Performance Firewalls

Related: Flaw in Fortinet Login Page Allowed Attackers to Phish Credentials

Related: Fortinet Acquires Security Monitoring Firm AccelOps

Written By

Eduard Kovacs (@EduardKovacs) is a managing 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.

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