Vulnerability · Published May 1, 2022 · Assigned by snyk
CVE-2022-21230Information Exposure
Medium 5.5
In plain English
A medium-severity security flaw in org.nanohttpd:nanohttpd. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | org.nanohttpd:nanohttpd | 0 – before unspecified |
References
- https://snyk.io/vuln/SNYK-JAVA-ORGNANOHTTPD-2422798 x_refsource_MISC
- https://github.com/NanoHttpd/nanohttpd/blob/efb2ebf85a2b06f7c508aba9eaad5377e3a01e81/core/src/main/java/org/nanohttpd/protocols/http/tempfiles/DefaultTempFile.java%23L58 x_refsource_MISC
- https://github.com/NanoHttpd/nanohttpd/blob/efb2ebf85a2b06f7c508aba9eaad5377e3a01e81/core/src/main/java/org/nanohttpd/protocols/http/tempfiles/DefaultTempFileManager.java%23L60 x_refsource_MISC
- https://github.com/JLLeitschuh/security-research/security/advisories/GHSA-2r85-x9cf-8fcg x_refsource_MISC