OpenSSL Timing Attack Risks – SES 7.2

Advisory ID CVE Number Date discovered Severity Advisory revision
STORM-2023-012 CVE-2022-4304 02/08/2023 medium v1

Vulnerability details

A timing-based attack exists in the OpenSSL RSA decryption.

Impacted products

Stormshield Endpoint Security medium SES 7.2 is impacted - SES EVO not impacted


Version Date Description
v1 06/22/2023 Initial release

Stormshield Endpoint Security

CVSS v3.1 Overall Score: 4.6      


Impacted version

A timing-based attack may be possible under certain circumstance for an attacker to achieve a successful decryption.

  • SES 7.2.39 and earlier

Workaround solution


There is no workaround solution.

The 7.2.40 version fixes this vulnerability.

Attack Vector Attack Complexity Privileges Required User Interaction Scope Confidentiality Impact Integrity Impact Availability impact
Adjacent Network High None None Unchanged High None None
CVSS Base score: 5.3 CVSS Vector: (AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
Exploit Code Maturity Remediation Level Report Confidence
Unproven that exploit exists Official fix Confirmed
CVSS Temporal score: 4.6 CVSS Vector: (AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Confidentiality Requirement Integrity Requirement Availability Requirement
Medium Medium Medium
CVSS Environmental score: 4.6 CVSS Vector: (AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C/CR:M/IR:M/AR:M/MAV:X/MAC:X/MPR:X/MUI:X/MS:X/MC:X/MI:X/MA:X)