PT-2021-19282 · 2N · 2N Access Unit 2.0

Rémy Grandin · Published 2021-08-13 · Updated 2021-08-24 · CVE-2021-31399

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions 2N Access Unit 2.0 version 2.31.0.40.5

Description An attacker can pose as the web relay for a man-in-the-middle attack on the affected devices.

Recommendations For 2N Access Unit 2.0 version 2.31.0.40.5, consider restricting access to the web relay to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

CVE-2021-31399

Affected Products

2N Access Unit 2.0

References · 7

• https://osv.dev/vulnerability/CVE-2021-31399 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-31399 · Security Note
• https://2n.cz/en_GB/products/ip-access-control/2n-access-unit-2 · Vendor Advisory
• https://excellium-services.com/cert-xlm-advisory/cve-2021-31399 · Note
• https://cds.thalesgroup.com/en/tcs-cert/CVE-2021-31399 · Note
• https://t.me/cvenotify/19300 · Telegram Post
• https://t.me/cibsecurity/27298 · Telegram Post