VDB-156482 · CVE-2020-13238 · GCVE-0-2020-13238

Mitsubishi MELSEC iQ-R 33 Crafted Packet resource consumption

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.
6.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Mitsubishi MELSEC iQ-R 33 and classified as problematic. The impacted element is an unknown function. Such manipulation as part of Crafted Packet leads to resource consumption. This vulnerability is uniquely identified as CVE-2020-13238. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Mitsubishi MELSEC iQ-R 33. It has been rated as problematic. Affected by this issue is an unknown code. The manipulation as part of a Crafted Packet leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. CVE summarizes:

Mitsubishi MELSEC iQ-R Series PLCs with firmware 33 allow attackers to halt the industrial process by sending an unauthenticated crafted packet over the network, because this denial of service attack consumes excessive CPU time. After halting, physical access to the PLC is required in order to restore production.

The weakness was disclosed 06/10/2020 (Website). The advisory is available at mitsubishielectric.com. This vulnerability is handled as CVE-2020-13238 since 05/20/2020. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

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

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

Productinfo

Vendor

Mitsubishi

Name

MELSEC iQ-R

Version

License

commercial

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
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
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/20/2020 🔍
06/10/2020 +21 days 🔍
06/11/2020 +1 days 🔍
10/23/2020 +134 days 🔍

Sourcesinfo

Advisory: mitsubishielectric.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-13238 (🔍)
GCVE (CVE): GCVE-0-2020-13238
GCVE (VulDB): GCVE-100-156482

Entryinfo

Created: 06/11/2020 10:01
Updated: 10/23/2020 19:49
Changes: 06/11/2020 10:01 (37), 06/11/2020 10:06 (17), 10/23/2020 19:49 (1)
Complete: 🔍
Cache ID: 216::103