Vulnerability in curl library

Advisory ID CVE Number Date discovered Severity Advisory revision
STORM-2021-035 CVE 2021-22890 06/09/2021 medium v1

Vulnerability details

A vulnerability in curl can lead to MITM and impact confidentiality, availability and integrity.

Impacted products

Stormshield Network Security medium SNS is impacted


Version Date Description
v1  08/25/2021 Initial release

Stormshield Network Security

CVSS v3.1 Overall Score: 4.5      


Impacted version

If a malicious proxy is used, when SNS wants to access to some server, an attacker can trick the SNS by usurping server identities and can have access to the traffic.

  • SNS 4.2.2

Workaround solution


There is no workaround.

The 4.2.4 update fixes this vulnerability.

Attack Vector Attack Complexity Privileges Required User Interaction Scope Confidentiality Impact Integrity Impact Availability impact
Network High High None Unchanged Low Low Low
CVSS Base score: 4.1 CVSS Vector: (AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L)
Exploit Code Maturity Remediation Level Report Confidence
Unproven that exploit exists Official fix Confirmed
CVSS Temporal score: 3.6 CVSS Vector: (AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C)
Confidentiality Requirement Integrity Requirement Availability Requirement
High High High
CVSS Environmental score: 4.5 CVSS Vector: (AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L/E:U/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)