CVE-2022-21230 Information Exposure
Local attackers can read sensitive HTTP request bodies from temporary files due to insecure file permissions in the NanoHTTPD library.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-21230?
CVE-2022-21230 is a medium-severity vulnerability in org.nanohttpd:nanohttpd, published on 1 May 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
This affects all versions of package org.nanohttpd:nanohttpd. Whenever an HTTP Session is parsing the body of an HTTP request, the body of the request is written to a RandomAccessFile when the it is larger than 1024 bytes. This file is created with insecure permissions that allow its contents to be viewed by all users on the host machine. **Workaround:** Manually specifying the -Djava.io.tmpdir= argument when launching Java to set the temporary directory to a directory exclusively controlled by the current user can fix this issue.
Which versions are affected by CVE-2022-21230?
It affects 1 product.
Products include Nanohttpd Nanohttpd.
How do I fix CVE-2022-21230?
No fix has been published for CVE-2022-21230 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-21230 being exploited?
There is no known exploitation of CVE-2022-21230 in the wild and no public exploit code.
Other vulnerabilities in org.nanohttpd:nanohttpd
Sources
Also known as GHSA-2r85-x9cf-8fcg, SNYK-JAVA-ORGNANOHTTPD-2422798.