| パッケージ | 影響を受けるバージョン | 修正済みバージョン |
|---|---|---|
| org.glassfish.jersey.core:jersey-common | ≥ 2.28, < 2.34≥ 3.0.0, < 3.0.2 | 2.343.0.2 |
| jersey | ≥ 2.28, < 2.34≥ 3.0.0, < 3.0.2 | 2.343.0.2 |
| communications cloud native core policy | = 1.15.0 | |
| communications cloud native core unified data repository | = 1.15.0 |
Eclipse Jersey 2.28 - 2.33 and Eclipse Jersey 3.0.0 - 3.0.1 contains a local information disclosure vulnerability. This is due to the use of the File.createTempFile which creates a file inside of the system temporary directory with the permissions: -rw-r--r--. Thus the contents of this file are viewable by all other users locally on the system. As such, if the contents written is security sensitive, it can be disclosed to other local users.
This issue can be mitigated by manually setting the java.io.tmpdir system property when launching the JVM.
Jersey 2.34 and 3.0.2 forward sets the correct permissions on the temporary file created by Jersey.
Similar, but not the same:
Original Disclosure:
Hello Jersey Security Team,
Utilizing a custom CodeQL query written as a part of the GitHub Security Lab Bug Bounty program, I've unearthed a local temporary file information disclosure vulnerability.
これらの製品をお使いですか？サイトをスキャンして、脆弱なバージョンが公開されていないか確認しましょう。
無料でサイトをスキャンYou can see the custom CodeQL query utilized here: https://lgtm.com/query/8831016213790320486/
This particular vulnerability exists because on unix-like systems (not including modern versions of MacOS) the system temporary directory is shared between all users. As such, failure to correctly set file permissions and/or verify exclusive creation of directories can lead to either local information disclosure, or local file hijacking by another user.
This vulnerability impacts the following locations in this project's source:
This vulnerability exists because of the vulnerability in the Utils.createTempFile:
This is because File.createTempFile creates a file inside of the system temporary directory with the permissions: -rw-r--r--. Thus the contents of this file are viewable by all other users locally on the system.
If there is sensitive information written to these files, it is disclosed to other local users on this system.
The fix for this vulnerability is to use the Files API (instead of the File API) to create temporary files/directories as this new API correctly sets the posix file permissions.