CVE-2021-31399 : On 2N Access Unit 2.0 2.31.0.40.5 devices, an attacker can pose as the web relay

On 2N Access Unit 2.0 2.31.0.40.5 devices, an attacker can pose as the web relay for a man-in-the-middle attack.

Published 2021-08-13 13:15:08

Updated 2021-08-24 21:52:58

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2021-31399

2N » Access Unit 2.0 Firmware » Version: 2.31.0.40.5
cpe:2.3:o:2n:access_unit_2.0_firmware:2.31.0.40.5:*:*:*:*:*:*:*
Matching versions
When used together with: 2N » Access Unit 2.0 » Version: N/A

EPSS FAQ

0.07%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 27 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:P/A:N	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
4.6	MEDIUM	CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L	2.1	2.5	MITRE
Attack Vector: Adjacent Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: Low Integrity: None Availability: Low
5.9	MEDIUM	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N	2.2	3.6	NIST
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None

CWE-295 Improper Certificate Validation

The product does not validate, or incorrectly validates, a certificate.

Assigned by: nvd@nist.gov (Primary)

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