RCE in Mimosa B5

CVE-2020-25206

The web console for Mimosa B5, B5c, and C5x firmware through 2.8.0.2 allows authenticated command injection in the Throughput, WANStats, PhyStats, and QosStats API classes. An attacker with access to a web console account may execute operating system commands on affected devices by sending crafted POST requests to the affected endpoints (/core/api/calls/Throughput.php, /core/api/calls/WANStats.php, /core/api/calls/PhyStats.php, /core/api/calls/QosStats.php). This results in the complete takeover of the vulnerable device. This vulnerability does not occur in the older 1.5.x firmware versions.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.053 (91.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-25206?
CVE-2020-25206 is a high-severity vulnerability in Mimosa B5, classified under OS Command Injection. CVSS score: 7.2/10. Published 2021-07-20.
How severe is CVE-2020-25206?
High severity. CVSS v3 base score is 7.2 out of 10.
Is CVE-2020-25206 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.