Trend Micro InterScan Web Security Virtual Appliance 6.5 HTTPS Traffic key management

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Trend Micro InterScan Web Security Virtual Appliance 6.5. It has been declared as critical. This vulnerability affects unknown code. Executing a manipulation as part of HTTPS Traffic can lead to key management. This vulnerability is tracked as CVE-2017-6339. The attack can be launched remotely. Moreover, an exploit is present. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in Trend Micro InterScan Web Security Virtual Appliance 6.5 (Anti-Malware Software). It has been declared as critical. This vulnerability affects some unknown processing. The manipulation as part of a HTTPS Traffic leads to a key management vulnerability. The CWE definition for the vulnerability is CWE-320. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The bug was discovered 04/04/2017. The weakness was disclosed 04/05/2017 (Website). The advisory is available at securityfocus.com. This vulnerability was named CVE-2017-6339 since 02/26/2017. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available. This vulnerability is assigned to T1600.001 by the MITRE ATT&CK project.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 99248 (Trend Micro IWSVA 6.5 < 6.5 Build 1746 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Firewalls and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11731 (Trend Micro Interscan Web Security Virtual Appliance (IWSVA) Multiple Vulnerabilities).

Applying the patch CP 1746 is able to eliminate this problem. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (42013), Tenable (99248) and SecurityFocus (BID 97492†). The entries VDB-97067, VDB-97068, VDB-97069 and VDB-97070 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.8

VulDB Base Score: 5.6
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Key management
CWE: CWE-320
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 99248
Nessus Name: Trend Micro IWSVA 6.5 < 6.5 Build 1746 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: CP 1746

Timelineinfo

02/26/2017 🔍
03/28/2017 +30 days 🔍
04/04/2017 +7 days 🔍
04/05/2017 +1 days 🔍
04/05/2017 +0 days 🔍
04/06/2017 +1 days 🔍
04/07/2017 +1 days 🔍
04/07/2017 +0 days 🔍
09/24/2024 +2727 days 🔍

Sourcesinfo

Vendor: trendmicro.com

Advisory: securityfocus.com⛔
Status: Not defined

CVE: CVE-2017-6339 (🔍)
GCVE (CVE): GCVE-0-2017-6339
GCVE (VulDB): GCVE-100-99322
SecurityFocus: 97492 - Trend Micro InterScan Web Security Virtual Appliance CVE-2017-6339 Security Bypass Vulnerability
OSVDB: - CVE-2017-6339 - Trend Micro - IWSVA - Security Bypass Issue

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 04/06/2017 10:40
Updated: 09/24/2024 06:40
Changes: 04/06/2017 10:40 (72), 08/26/2020 07:01 (8), 09/24/2024 06:40 (17)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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