CVE-2019-3921 Memory corruption in Alcatel Lucent I-240W-Q GPON ONT
A remote authenticated attacker can execute arbitrary code on Alcatel Lucent I-240W-Q GPON ONT devices via a stack buffer overflow in the USB form handler.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-3921?
CVE-2019-3921 is a high-severity memory corruption vulnerability in Tenable Alcatel Lucent I-240W-Q GPON ONT, published on 5 Mar 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Alcatel Lucent I-240W-Q GPON ONT using firmware version 3FE54567BOZJ19 is vulnerable to a stack buffer overflow via crafted HTTP POST request sent by a remote, authenticated attacker to /GponForm/usb_Form?script/. An attacker can leverage this vulnerability to potentially execute arbitrary code.
Which versions are affected by CVE-2019-3921?
It affects 1 product.
Products include Nokia I-240w-Q Gpon Ont Firmware.
How do I fix CVE-2019-3921?
No fix has been published for CVE-2019-3921 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-3921 being exploited?
There is no known exploitation of CVE-2019-3921 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Tenable Alcatel Lucent I-240W-Q GPON ONT
- CVE-2019-3918 Hardcoded credentials in Alcatel Lucent I-240W-Q GPON ONT
- CVE-2019-3922 Memory corruption in Alcatel Lucent I-240W-Q GPON ONT
- CVE-2019-3919 Command injection in Alcatel Lucent I-240W-Q GPON ONT
- CVE-2019-3920 Command injection in Alcatel Lucent I-240W-Q GPON ONT
- CVE-2019-3917 Missing authorization in Alcatel Lucent I-240W-Q GPON ONT
Sources
Also known as GHSA-c4vw-m533-crpc.