Mitsubishi Electric MELSEC-Q Password risky encryption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.4	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Mitsubishi Electric MELSEC-Q. This issue affects some unknown processing. The manipulation leads to risky encryption (Password). This vulnerability is documented as CVE-2016-8370. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Mitsubishi Electric MELSEC-Q (affected version unknown) and classified as critical. This issue affects an unknown functionality. The manipulation with an unknown input leads to a risky encryption vulnerability (Password). Using CWE to declare the problem leads to CWE-327. The product uses a broken or risky cryptographic algorithm or protocol. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in Mitsubishi Electric Automation MELSEC-Q series Ethernet interface modules QJ71E71-100, all versions, QJ71E71-B5, all versions, and QJ71E71-B2, all versions. Weakly encrypted passwords are transmitted to a MELSEC-Q PLC.

The bug was discovered 12/01/2016. The weakness was released 02/13/2017 (Website). The advisory is shared at securityfocus.com. The identification of this vulnerability is CVE-2016-8370 since 09/28/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1600 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 74 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 94632†). Entry connected to this vulnerability is available at VDB-96879. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Mitsubishi Electric

Name

• MELSEC-Q

License

• commercial

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Name: Password
Class: Risky encryption / Password
CWE: CWE-327 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/28/2016 🔍
12/01/2016 +64 days 🔍
12/01/2016 +0 days 🔍
02/13/2017 +74 days 🔍
02/13/2017 +0 days 🔍
02/14/2017 +1 days 🔍
09/02/2020 +1296 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Status: Not defined

CVE: CVE-2016-8370 (🔍)
GCVE (CVE): GCVE-0-2016-8370
GCVE (VulDB): GCVE-100-96881
SecurityFocus: 94632 - Multiple Mitsubishi Electric MELSEC-Q Series Security Bypass and Denial of Service Vulnerabilities
OSVDB: - CVE-2016-8370 - Mitsubishi Electric Automation - MELSEC-Q - Weak Encryption Issue

See also: 🔍

Entryinfo

Created: 02/14/2017 09:10
Updated: 09/02/2020 08:23
Changes: 02/14/2017 09:10 (58), 09/02/2020 08:23 (5)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

Do you want to use VulDB in your project?

Use the official API to access entries easily!