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 (≈)
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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-$5k0.00

Summaryinfo

A vulnerability classified as very critical has been found in Mitsubishi Electric MELSEC-Q and MELSEC-L. This affects an unknown part of the component Packet Handler. This manipulation causes integer overflow. This vulnerability is registered as CVE-2024-1917. Remote exploitation of the attack is possible. No exploit is available. It is advisable to implement restrictive firewalling.

Detailsinfo

A vulnerability was found in Mitsubishi Electric MELSEC-Q and MELSEC-L (version now known). It has been declared as very critical. Affected by this vulnerability is some unknown processing 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 shared at cisa.gov. This vulnerability is known as CVE-2024-1917. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/15/2024).

Proper firewalling of is able to address this issue.

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Productinfo

Vendor

Name

License

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/27/2024 🔍
03/15/2024 +17 days 🔍
03/15/2024 +0 days 🔍
04/15/2024 +31 days 🔍

Sourcesinfo

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

CVE: CVE-2024-1917 (🔍)
GCVE (CVE): GCVE-0-2024-1917
GCVE (VulDB): GCVE-100-256885

Entryinfo

Created: 03/15/2024 01:08
Updated: 04/15/2024 16:06
Changes: 03/15/2024 01:08 (36), 04/15/2024 16:00 (16), 04/15/2024 16:06 (11)
Complete: 🔍
Cache ID: 216::103

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