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
- Polycom Hdx_system_software
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)
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.