CVE-2023-30756

Sept. 10, 2024, 12:09 p.m.

5.9
Medium

Description

A vulnerability has been identified in SIMATIC CP 1242-7 V2 (incl. SIPLUS variants) (All versions < V3.5.20), SIMATIC CP 1243-1 (incl. SIPLUS variants) (All versions < V3.5.20), SIMATIC CP 1243-1 DNP3 (incl. SIPLUS variants) (All versions < V3.5.20), SIMATIC CP 1243-1 IEC (incl. SIPLUS variants) (All versions < V3.5.20), SIMATIC CP 1243-7 LTE (All versions < V3.5.20), SIMATIC CP 1243-8 IRC (6GK7243-8RX30-0XE0) (All versions < V3.5.20), SIMATIC HMI Comfort Panels (incl. SIPLUS variants) (All versions), SIMATIC IPC DiagBase (All versions), SIMATIC IPC DiagMonitor (All versions), SIMATIC WinCC Runtime Advanced (All versions), SIPLUS TIM 1531 IRC (6AG1543-1MX00-7XE0) (All versions < V2.4.8), TIM 1531 IRC (6GK7543-1MX00-0XE0) (All versions < V2.4.8). The web server of the affected devices do not properly handle certain errors when using the Expect HTTP request header, resulting in NULL dereference. This could allow a remote attacker with no privileges to cause a denial of service condition in the system.

Product(s) Impacted

Product Versions
SIMATIC IPC DiagBase
SIMATIC IPC DiagMonitor
SIMATIC CP 1242-7 V2 (incl. SIPLUS variants)
  • < V3.5.20
SIMATIC CP 1243-1 (incl. SIPLUS variants)
  • < V3.5.20
SIMATIC CP 1243-1 DNP3 (incl. SIPLUS variants)
  • < V3.5.20
SIMATIC CP 1243-1 IEC (incl. SIPLUS variants)
  • < V3.5.20
SIMATIC CP 1243-7 LTE
  • < V3.5.20
SIMATIC CP 1243-8 IRC (6GK7243-8RX30-0XE0)
  • < V3.5.20
SIMATIC HMI Comfort Panels (incl. SIPLUS variants)
SIMATIC WinCC Runtime Advanced
SIPLUS TIM 1531 IRC (6AG1543-1MX00-7XE0)
  • < V2.4.8
TIM 1531 IRC (6GK7543-1MX00-0XE0)
  • < V2.4.8

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-476
NULL Pointer Dereference
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

References

https://cert-portal.siemens.com/productcert/html/ssa-423808.html

Tags

CWE-476
productcert@siemens.com
2024-09-10
CVE-2023-30756

CVSS Score

5.9 / 10

CVSS Data - 3.1

  • Attack Vector: NETWORK
  • Attack Complexity: HIGH
  • Privileges Required: NONE
  • Scope: UNCHANGED
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: HIGH

    • CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

    View Vector String

Timeline

Published: Sept. 10, 2024, 10:15 a.m.
Last Modified: Sept. 10, 2024, 12:09 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

productcert@siemens.com

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.