CVE-2017-6339
6.5 · MEDIUMOverview
CVE-2017-6339 is a medium-severity vulnerability affecting trendmicro interscan_web_security_virtual_appliance. It was published on April 5, 2017 and has a CVSS 3.0 base score of 6.5 (MEDIUM).
This vulnerability has a CVSS 3.0 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
Trend Micro InterScan Web Security Virtual Appliance (IWSVA) 6.5 before CP 1746 mismanages certain key and certificate data. Per IWSVA documentation, by default, IWSVA acts as a private Certificate Authority (CA) and dynamically generates digital certificates that are sent to client browsers to complete a secure passage for HTTPS connections. It also allows administrators to upload their own certificates signed by a root CA. An attacker with low privileges can download the current CA certificate and Private Key (either the default ones or ones uploaded by administrators) and use those to decrypt HTTPS traffic, thus compromising confidentiality. Also, the default Private Key on this appliance is encrypted with a very weak passphrase. If an appliance uses the default Certificate and Private Key provided by Trend Micro, an attacker can simply download these and decrypt the Private Key using the default/weak passphrase.
Remediation
Check the references section for vendor advisories and patches from trendmicro. Update interscan_web_security_virtual_appliance to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| trendmicro | interscan_web_security_virtual_appliance | 0 | Affected |
Frequently Asked Questions
What is CVE-2017-6339?
CVE-2017-6339 is a medium-severity vulnerability affecting trendmicro interscan_web_security_virtual_appliance. It was published on April 5, 2017 and has a CVSS 3.0 base score of 6.5 (MEDIUM).
How severe is CVE-2017-6339?
This vulnerability has a CVSS 3.0 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2017-6339?
Check the references section for vendor advisories and patches from trendmicro. Update interscan_web_security_virtual_appliance to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2017-6339?
CyberStrike's AI-powered security agents can automatically detect CVE-2017-6339 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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