VDB-256882 · CVE-2024-0803 · icsa-24-074-14

Mitsubishi Electric MELSEC-Q/MELSEC-L Packet integer overflow

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.
9.7	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as very critical has been found in Mitsubishi Electric MELSEC-Q and MELSEC-L. Affected is an unknown function of the component Packet Handler. Executing a manipulation can lead to integer overflow. This vulnerability is tracked as CVE-2024-0803. The attack can be launched remotely. No exploit exists. The application of restrictive firewalling is recommended.

Detailsinfo

A vulnerability has been found in Mitsubishi Electric MELSEC-Q and MELSEC-L (the affected version unknown) and classified as very critical. This vulnerability affects an unknown part of the component Packet Handler. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is available at cisa.gov. This vulnerability was named CVE-2024-0803. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 03/15/2024).

Proper firewalling of is able to address this issue.

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

Productinfo

Vendor

Mitsubishi Electric

Name

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.7

VulDB Base Score: 9.8
VulDB Temp Score: 9.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector (Mitsubishi Electric Corporation): 🔍

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: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
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: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/23/2024 🔍
03/15/2024 +52 days 🔍
03/15/2024 +0 days 🔍
04/15/2024 +31 days 🔍

Sourcesinfo

Advisory: icsa-24-074-14
Status: Confirmed

CVE: CVE-2024-0803 (🔍)
GCVE (CVE): GCVE-0-2024-0803
GCVE (VulDB): GCVE-100-256882

Entryinfo

Created: 03/15/2024 01:08
Updated: 04/15/2024 15:32
Changes: 03/15/2024 01:08 (36), 04/15/2024 15:25 (16), 04/15/2024 15:32 (11)
Complete: 🔍
Cache ID: 216::103