CVE-2011-4861 Missing authorization in n/a
Remote attackers can install arbitrary firmware on Schneider Electric Quantum Ethernet Modules via MODBUS, leading to full device compromise.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2011-4861?
CVE-2011-4861 is a critical missing authorization vulnerability in n/a, published on 17 Dec 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The modbus_125_handler function in the Schneider Electric Quantum Ethernet Module on the NOE 771 device (aka the Quantum 140NOE771* module) allows remote attackers to install arbitrary firmware updates via a MODBUS 125 function code to TCP port 502.
Weakness: CWE-264
Which versions are affected by CVE-2011-4861?
It affects 3 products.
Products include Schneider-Electric Quantum Ethernet Module 140noe77100, Schneider-Electric Quantum Ethernet Module 140noe77101, Schneider-Electric Quantum Ethernet Module 140noe77111.
How do I fix CVE-2011-4861?
No fix has been published for CVE-2011-4861 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2011-4861 being exploited?
There is no known exploitation of CVE-2011-4861 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-qjpg-9j88-997j.