PT-2020-14370 · Zyxel · Zyxel Cloudcnm Secumanager

Alexandre Torres + 2 · Published 2020-06-26 · Updated 2022-07-17 · CVE-2020-15336

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Zyxel CloudCNM SecuManager versions 3.1.0 through 3.1.1

Description The issue concerns a lack of authentication for "/cnr" requests. This means that the "/cnr" API endpoint does not require authentication, potentially allowing unauthorized access.

Recommendations For versions 3.1.0 and 3.1.1, consider restricting access to the "/cnr" API endpoint until a fix is available. As a temporary workaround, avoid using the "/cnr" requests in the affected Zyxel CloudCNM SecuManager versions until the issue is resolved.

Fix

Missing Authentication

Weakness Enumeration

CWE-306

Related Identifiers

CVE-2020-15336

Affected Products

Zyxel Cloudcnm Secumanager

References · 5

• https://osv.dev/vulnerability/CVE-2020-15336 · Vendor Advisory
• https://zyxel.com/support/vulnerabilities-of-CloudCNM-SecuManager.shtml · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-15336 · Security Note
• https://t.me/cvenotify/33238 · Telegram Post
• https://pierrekim.github.io/blog/2020-03-09-zyxel-secumanager-0day-vulnerabilities.html#xmpp-no-auth-cleartext · Note