CVE-2019-3917 — The Alcatel Lucent I-240W-Q GPON ONT using firmware version 3FE54567BOZJ19 allow

The Alcatel Lucent I-240W-Q GPON ONT using firmware version 3FE54567BOZJ19 allows a remote, unauthenticated attacker to enable telnetd on the router via a crafted HTTP request.

01What is this vulnerability?

The Alcatel Lucent I-240W-Q GPON ONT using firmware version 3FE54567BOZJ19 allows a remote, unauthenticated attacker to enable telnetd on the router via a crafted HTTP request.

02Affected products

Vendor	Product	Versions
Tenable	Alcatel Lucent I	240W-Q GPON ONT — Firmware version 3FE54567BOZJ19

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-03-05T21:00:00.000Z
• Last modified: 2024-09-16T16:14:15.165Z

09References

• www.tenable.com — https://www.tenable.com/security/research/tra-2019-09