CVE-2021-27561

EUVD-2021-14312
Yealink Device Management (DM) 3.6.0.20 allows command injection as root via the /sm/api/v1/firewall/zone/services URI, without authentication.
OS Command Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA-ADPADP
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 99%
Affected Products (NVD)
VendorProductVersion
yealinkdevice_management
𝑥
≤ 3.6.0.20
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://ssd-disclosure.com/?p=4688
https://ssd-disclosure.com/?p=4688
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-27561