6.5
MEDIUM
CVE-2017-6339
Trend Micro InterScan Web Security Virtual Appliance (IWSVA) CA Key Exposure
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.

INFO

Published Date :

April 5, 2017, 4:59 p.m.

Last Modified :

Oct. 3, 2019, 12:03 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2017-6339 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Trendmicro interscan_web_security_virtual_appliance
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2017-6339.

URL Resource
http://www.securityfocus.com/bid/97492 Third Party Advisory VDB Entry
https://success.trendmicro.com/solution/1116960 Patch Vendor Advisory
https://www.qualys.com/2017/01/12/qsa-2017-01-12/qsa-2017-01-12.pdf Exploit Technical Description Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2017-6339 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-6339 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-320 CWE-269 CWE-521
  • Initial Analysis by [email protected]

    Apr. 11, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:S/C:P/I:N/A:N)
    Added CVSS V3 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type http://www.securityfocus.com/bid/97492 No Types Assigned http://www.securityfocus.com/bid/97492 Third Party Advisory, VDB Entry
    Changed Reference Type https://success.trendmicro.com/solution/1116960 No Types Assigned https://success.trendmicro.com/solution/1116960 Patch, Vendor Advisory
    Changed Reference Type https://www.qualys.com/2017/01/12/qsa-2017-01-12/qsa-2017-01-12.pdf No Types Assigned https://www.qualys.com/2017/01/12/qsa-2017-01-12/qsa-2017-01-12.pdf Exploit, Technical Description, Third Party Advisory
    Added CWE CWE-320
    Added CPE Configuration OR *cpe:2.3:a:trendmicro:interscan_web_security_virtual_appliance:6.5:*:*:*:*:*:*:* (and previous)
  • CVE Modified by [email protected]

    Apr. 11, 2017

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/97492 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.31 }} 0.00%

score

0.65108

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability