CVE-2020-29138 Missing authorization in n/a
Remote unauthenticated users can download router configuration files via a specific URI if a valid session is active, exposing sensitive settings.
- 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-2020-29138?
CVE-2020-29138 is a medium-severity missing authorization vulnerability in n/a, published on 27 Nov 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Incorrect Access Control in the configuration backup path in SAGEMCOM F@ST3486 NET DOCSIS 3.0, software NET_4.109.0, allows remote unauthenticated users to download the router configuration file via the /backupsettings.conf URI, when any valid session is running.
Weakness: CWE-306
Which versions are affected by CVE-2020-29138?
It affects 1 product.
Products include Sagemcom F\@st 3486 Router Firmware.
How do I fix CVE-2020-29138?
No fix has been published for CVE-2020-29138 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-2020-29138 being exploited?
There is no known exploitation of CVE-2020-29138 in the wild and no public exploit code.
Sources
Also known as GHSA-mhcx-4c5f-w275.