RCE in Cambium Networks Epmp
CVE-2017-5255
In version 3.5 and prior of Cambium Networks ePMP firmware, a lack of input sanitation for certain parameters on the web management console allows any authenticated user (including the otherwise low-privilege readonly user) to inject shell meta-characters as part of a specially-crafted POST request to the get_chart function and run OS-level commands, effectively as root.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.742 (99.5th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.742 · newest: 0.742 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.exploit-db.com/exploits/43413/ (VDB Entry, Third Party Advisory, exploit)
- blog.rapid7.com/2017/12/19/r7-2017-25-cambium-epmp-and-cnpilot-multiple-vulnera… (Third Party Advisory)
Frequently asked questions
- What is CVE-2017-5255?
- CVE-2017-5255 is a high-severity vulnerability in Cambium Networks Epmp, classified under OS Command Injection. CVSS score: 8.8/10. Published 2017-12-20.
- How severe is CVE-2017-5255?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2017-5255 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.