CVE-2022-21230

 

Published at: - 01-05-2022 06:15

Last modified: - 11-05-2022 04:34

Total changes: - 3

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

 

Verification logic

 

Reference

• https://github.com/NanoHttpd/nanohttpd/blob/efb2ebf85a2b06f7c508aba9eaad5377e3a01e81/core/src/main/java/org/nanohttpd/protocols/http/tempfiles/DefaultTempFileManager.java%23L60
• https://github.com/NanoHttpd/nanohttpd/blob/efb2ebf85a2b06f7c508aba9eaad5377e3a01e81/core/src/main/java/org/nanohttpd/protocols/http/tempfiles/DefaultTempFile.java%23L58
• https://github.com/JLLeitschuh/security-research/security/advisories/GHSA-2r85-x9cf-8fcg
• https://snyk.io/vuln/SNYK-JAVA-ORGNANOHTTPD-2422798

 

Keywords

NVD

 

CVE-2022-21230

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures