CVE-2023-51440
Published: 13 February 2024
Summary
CVE-2023-51440 is a high-severity Improper Verification of Source of a Communication Channel (CWE-940) vulnerability in Siemens Simatic Cp 343-1. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 40.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-56160
Vulnerability details
A vulnerability has been identified in SIMATIC CP 343-1 (6GK7343-1EX30-0XE0) (All versions), SIMATIC CP 343-1 Lean (6GK7343-1CX10-0XE0) (All versions), SIPLUS NET CP 343-1 (6AG1343-1EX30-7XE0) (All versions), SIPLUS NET CP 343-1 Lean (6AG1343-1CX10-2XE0) (All versions). Affected products incorrectly validate TCP sequence…
more
numbers. This could allow an unauthenticated remote attacker to create a denial of service condition by injecting spoofed TCP RST packets.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Enforces verification of the source of a communication channel by requiring identification and authentication of services first.
Requires explicit verification of the source and integrity of the channel used for authentication and other security functions.
Provides the means to verify the source of name-resolution responses instead of relying on unauthenticated channels.
Requires explicit verification of the communication source, blocking session hijacking via spoofed or alternate channels.