PT-2024-34471 · Inovance · Inovance Hcplc Am403-Cpu1608Tn+2

Published 2024-11-13 · Updated 2024-11-25 · CVE-2024-50956

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: Inovance HCPLC AM401-CPU1608TPTN version 21.38.0.0 Inovance HCPLC AM402-CPU1608TPTN version 41.38.0.0 Inovance HCPLC AM403-CPU1608TN version 81.38.0.0

Description: A buffer overflow in the RecvSocketData function allows attackers to cause a Denial of Service (DoS) or execute arbitrary code via a crafted Modbus message.

Recommendations: For Inovance HCPLC AM401-CPU1608TPTN version 21.38.0.0, consider disabling the RecvSocketData function until a patch is available. For Inovance HCPLC AM402-CPU1608TPTN version 41.38.0.0, restrict access to the Modbus protocol to minimize the risk of exploitation. For Inovance HCPLC AM403-CPU1608TN version 81.38.0.0, avoid processing crafted Modbus messages until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2024-50956

Affected Products

Inovance Hcplc Am401-Cpu1608Tptn

Inovance Hcplc Am402-Cpu1608Tptn

Inovance Hcplc Am403-Cpu1608Tn

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2024-50956 · Security Note
• https://t.me/cvedetector/10896 · Telegram Post
• https://github.com/Curator-Kim/Vulnerability-mining/blob/master/INOVANCE%20AM400%20Series%20Modbus%20buffer%20overflow/INOVANCE%20AM400%20Series%20Modbus%20buffer%20overflow.md · Note