CVE-2017-6339
First published: Wed Apr 05 2017(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Trend Micro InterScan Web Security Virtual Appliance | <=6.5 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2017-6339?
CVE-2017-6339 is classified as a medium severity vulnerability due to its potential impact on secure communications.
How do I fix CVE-2017-6339?
To fix CVE-2017-6339, upgrade to Trend Micro InterScan Web Security Virtual Appliance version 6.5 CP 1746 or later.
What are the risks associated with CVE-2017-6339?
Risks associated with CVE-2017-6339 include exposure of sensitive key and certificate data, leading to potential man-in-the-middle attacks.
Who is affected by CVE-2017-6339?
CVE-2017-6339 affects users of Trend Micro InterScan Web Security Virtual Appliance version 6.5 prior to CP 1746.
Does CVE-2017-6339 affect other versions of IWSVA?
CVE-2017-6339 specifically affects Trend Micro InterScan Web Security Virtual Appliance version 6.5 and does not apply to later versions.
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