Using Untrusted URIs for Revocation Checking (CVE-2022-40617)

Advisory ID CVE Number Date discovered Severity Advisory revision
STORM-2022-025 CVE-2022-40617 10/04/2022 medium v2

Vulnerability details

The VPN IPSec Service on SNS may use untrusted OSCP URIs and CRL distribution points in certificates.

Impacted products

ProductsSeverityDetail
Stormshield Network Security medium SNS is impacted

Revisions

Version Date Description
v1 11/17/2022 Reserved Publication
v2 01/10/2023 Updated and disclosed


Stormshield Network Security

CVSS v3.1 Overall Score: 5.7      

Analysis

Impacted version

An attacker could exploit this vulnerability by crafting a certificate pointing to malicious website and causing a DOS of VPN IPSec service on SNS.

  • SNS 3.11.1 to 3.11.19
  • SNS 4.3.1 to 4.3.14
  • SNS 4.5.1 to 4.5.3

Workaround solution

Solution

No workaround

The following versions fix this vulnerability:

  • 3.11.20
  • 4.3.15
  • 4.6.0


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
Functional exploit exists Official fix Confirmed
CVSS Temporal score: 4.9 CVSS Vector: (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:F/RL:O/RC:C)
Confidentiality Requirement Integrity Requirement Availability Requirement
High High High
CVSS Environmental score: 5.7 CVSS Vector: (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:F/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)