CVE-2023-38322 Null dereference in n/a
A crafted HTTP request with a missing User-Agent header causes a null pointer dereference and service crash in OpenNDS when BinAuth is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-38322?
CVE-2023-38322 is a high-severity vulnerability in n/a, published on 17 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in OpenNDS Captive Portal before version 10.1.2. It has a do_binauth NULL pointer dereference that be triggered with a crafted GET HTTP request with a missing User-Agent HTTP header. Triggering this issue results in crashing OpenNDS (a Denial-of-Service condition). The issue occurs when the client is about to be authenticated, and can be triggered only when the BinAuth option is set. Affected OpenNDS Captive Portal before version 10.1.2 fixed in OpenWrt master, OpenWrt 23.05 and OpenWrt 22.03 on 28. August 2023 by updating OpenNDS to version 10.1.3.
Weakness: CWE-476
Which versions are affected by CVE-2023-38322?
It affects 1 product.
Products include Opennds Captive Portal.
How do I fix CVE-2023-38322?
Upgrade to a fixed version.
Is CVE-2023-38322 being exploited?
There is no known exploitation of CVE-2023-38322 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2023-38322, GHSA-596w-g2cr-x93q.