Possible Denial of Service on IPSEC daemon

Advisory ID CVE Number Date discovered Severity Advisory revision
STORM-2023-024 CVE-2023-47091 06/30/2023 medium v1

Vulnerability details

An attacker can overflow the cookie threshold leading to an impossibility of IPSEC connection.

Impacted products

Stormshield Network Security medium SNS is impacted


Version Date Description
v1 12/15/2023 Publication

Stormshield Network Security

CVSS v3.1 Overall Score: 5.5      


Impacted version

Possible Denial of Service on IPSEC daemon due to exceeding the cookie threshold limit.

  • SNS 4.3.13 to 4.3.22
  • SNS 4.6.0 to 4.6.9
  • SNS 4.7.0 to 4.7.1

Workaround solution


  • Raise the value of the CookieThreshold token

The following versions fix this vulnerability

  • 4.3.23
  • 4.6.10
  • 4.7.2

Attack Vector Attack Complexity Privileges Required User Interaction Scope Confidentiality Impact Integrity Impact Availability impact
Network Low None None Unchanged None None Low
CVSS Base score: 5.3 CVSS Vector: (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
Exploit Code Maturity Remediation Level Report Confidence
Proof of concept code Official fix Confirmed
CVSS Temporal score: 4.8 CVSS Vector: (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C)
Confidentiality Requirement Integrity Requirement Availability Requirement
High High High
CVSS Environmental score: 5.5 CVSS Vector: (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C/CR:H/IR:H/AR:H/MAV:X/MAC:X/MPR:X/MUI:X/MS:X/MC:X/MI:X/MA:X)