CVE-2018-7798 Missing authorization in Modicon M221, All Versions
An attacker can remotely modify IPv4 network settings on Schneider Modicon M221 devices due to insufficient data authenticity verification.
- 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-2018-7798?
CVE-2018-7798 is a high-severity missing authorization vulnerability in Schneider Electric SE Modicon M221, All Versions, published on 2 Nov 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A Insufficient Verification of Data Authenticity (CWE-345) vulnerability exists in the Modicon M221, all versions, which could cause a change of IPv4 configuration (IP address, mask and gateway) when remotely connected to the device.
Weakness: CWE-345
Which versions are affected by CVE-2018-7798?
It affects 1 product.
Products include Schneider-Electric Somachine Basic.
How do I fix CVE-2018-7798?
No fix has been published for CVE-2018-7798 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-2018-7798 being exploited?
There is no known exploitation of CVE-2018-7798 in the wild and no public exploit code.
Other vulnerabilities in Schneider Electric SE Modicon M221, All Versions
Sources
Also known as GHSA-wcc5-wx82-x4gx.