PT-2022-14939 · Nanohttpd · Nanohttpd

Jonathan Leitschuh · Published 2022-05-01 · Updated 2022-05-11 · CVE-2022-21230

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions org.nanohttpd:nanohttpd (affected versions not specified)

Description The issue affects the parsing of HTTP request bodies. When the body exceeds 1024 bytes, it is written to a RandomAccessFile with insecure permissions, allowing all users on the host machine to view its contents.

Recommendations For all affected versions, as a temporary workaround, consider manually specifying the -Djava.io.tmpdir= argument when launching Java to set the temporary directory to a directory exclusively controlled by the current user.

Fix

Related Identifiers

CVE-2022-21230

GHSA-2R85-X9CF-8FCG

SNYK-JAVA-ORGNANOHTTPD-2422798

Affected Products

Nanohttpd

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2022-21230 · Security Note
• https://osv.dev/vulnerability/CVE-2022-21230 · Vendor Advisory
• https://github.com/NanoHttpd/nanohttpd/blob/efb2ebf85a2b06f7c508aba9eaad5377e3a01e81/core/src/main/java/org/nanohttpd/protocols/http/tempfiles/DefaultTempFileManager.java%23L60 · Note
• https://github.com/NanoHttpd/nanohttpd/blob/efb2ebf85a2b06f7c508aba9eaad5377e3a01e81/core/src/main/java/org/nanohttpd/protocols/http/tempfiles/DefaultTempFile.java%23L58 · Note
• https://github.com/JLLeitschuh/security-research/security/advisories/GHSA-2r85-x9cf-8fcg · Note
• https://snyk.io/vuln/SNYK-JAVA-ORGNANOHTTPD-2422798 · Note