CVE-2017-5255

high

Published 2017-12-20 · Modified 2026-05-13

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CVSS v3

8.8

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

9.8

Description

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.

Predictions

Exploit likelihood

92%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-43413 remote cgi verified

Metasploit · 2018-01-01

Cambium ePMP1000 - 'get_chart' Shell via Command Injection (Metasploit)

Source code queued for fetch — refresh in a moment.

Metasploit modules

exploit_unix/http/epmp1000_ping_cmd_shell rank 600

Cambium ePMP1000 'ping' Shell via Command Injection (up to v2.5)

Source code queued for fetch — refresh in a moment.

exploit_unix/http/epmp1000_get_chart_cmd_shell rank 600

Cambium ePMP1000 'get_chart' Shell via Command Injection (v3.1-3.5-RC7)

Source fetch failed: fetch_error — view the original via the link above.

auxiliary_scanner/http/epmp1000_get_chart_cmd_exec rank 300

Cambium ePMP 1000 'get_chart' Command Injection (v3.1-3.5-RC7)

Source fetch failed: fetch_error — view the original via the link above.

auxiliary_scanner/http/epmp1000_ping_cmd_exec rank 300

Cambium ePMP 1000 'ping' Command Injection (up to v2.5)

Source code queued for fetch — refresh in a moment.

References

CWEs

CWE-78

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.