RCE in Polycom Hdx System Software

CVE-2019-11355

An issue was discovered in Poly (formerly Polycom) HDX 3.1.13. A feature exists that allows the creation of a server / client certificate, or the upload of the user certificate, on the administrator's page. The value received from the user is the factor value of a shell script on the equipment. By entering a special character (such as a single quote) in a CN or other CSR field, one can insert a command into a factor value. A system command can be executed as root.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.011 (61.7th 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)

References

Frequently asked questions

What is CVE-2019-11355?
CVE-2019-11355 is a high-severity vulnerability in Polycom Hdx System Software, classified under OS Command Injection. CVSS score: 7.2/10. Published 2020-03-12.
How severe is CVE-2019-11355?
High severity. CVSS v3 base score is 7.2 out of 10.