CVE-2020-15250 Detail

Current Description

In JUnit4 from version 4.7 and before 4.13.1, the test rule TemporaryFolder contains a local information disclosure vulnerability. On Unix like systems, the system's temporary directory is shared between all users on that system. Because of this, when files and directories are written into this directory they are, by default, readable by other users on that same system. This vulnerability does not allow other users to overwrite the contents of these directories or files. This is purely an information disclosure vulnerability. This vulnerability impacts you if the JUnit tests write sensitive information, like API keys or passwords, into the temporary folder, and the JUnit tests execute in an environment where the OS has other untrusted users. Because certain JDK file system APIs were only added in JDK 1.7, this this fix is dependent upon the version of the JDK you are using. For Java 1.7 and higher users: this vulnerability is fixed in 4.13.1. For Java 1.6 and lower users: no patch is available, you must use the workaround below. If you are unable to patch, or are stuck running on Java 1.6, specifying the `java.io.tmpdir` system environment variable to a directory that is exclusively owned by the executing user will fix this vulnerability. For more information, including an example of vulnerable code, see the referenced GitHub Security Advisory.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  5.5 MEDIUM
Vector:  CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Nist CVSS score does not match with CNA score
CNA:  GitHub, Inc.
Base Score:  4.4 MEDIUM
Vector:  CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/junit-team/junit4/blob/7852b90cfe1cea1e0cdaa19d490c83f0d8684b50/doc/ReleaseNotes4.13.1.md Release Notes  Third Party Advisory 
https://github.com/junit-team/junit4/commit/610155b8c22138329f0723eec22521627dbc52ae Patch  Third Party Advisory 
https://github.com/junit-team/junit4/issues/1676 Issue Tracking  Third Party Advisory 
https://github.com/junit-team/junit4/security/advisories/GHSA-269g-pwp5-87pp Exploit  Third Party Advisory 
https://junit.org/junit4/javadoc/4.13/org/junit/rules/TemporaryFolder.html Vendor Advisory 
https://lists.apache.org/thread.html/r01110833b63616ddbef59ae4e10c0fbd0060f0a51206defd4cb4d917@%3Ccommits.pulsar.apache.org%3E
https://lists.apache.org/thread.html/r500517c23200fb2fdb0b82770a62dd6c88b3521cfb01cfd0c76e3f8b@%3Cdev.creadur.apache.org%3E Mailing List  Third Party Advisory 
https://lists.apache.org/thread.html/r5f8841507576f595bb783ccec6a7cb285ea90d4e6f5043eae0e61a41@%3Cdev.creadur.apache.org%3E Mailing List  Third Party Advisory 
https://lists.apache.org/thread.html/r717877028482c55acf604d7a0106af4ca05da4208c708fb157b53672@%3Ccommits.creadur.apache.org%3E Mailing List  Patch  Third Party Advisory 
https://lists.apache.org/thread.html/r95f8ef60c4b3a5284b647bb3132cda08e6fadad888a66b84f49da0b0@%3Ccommits.creadur.apache.org%3E Mailing List  Patch  Third Party Advisory 
https://lists.apache.org/thread.html/ra1bdb9efae84794e8ffa2f8474be8290ba57830eefe9714b95da714b@%3Cdev.pdfbox.apache.org%3E Mailing List  Third Party Advisory 
https://lists.apache.org/thread.html/raebf13f53cd5d23d990712e3d11c80da9a7bae94a6284050f148ed99@%3Ccommits.pulsar.apache.org%3E
https://lists.apache.org/thread.html/rb2771949c676ca984e58a5cd5ca79c2634dee1945e0406e48e0f8457@%3Cdev.creadur.apache.org%3E Mailing List  Third Party Advisory 
https://lists.apache.org/thread.html/rb33212dab7beccaf1ffef9b88610047c644f644c7a0ebdc44d77e381@%3Ccommits.turbine.apache.org%3E
https://lists.apache.org/thread.html/rbaec90e699bc7c7bd9a053f76707a36fda48b6d558f31dc79147dbf9@%3Cdev.creadur.apache.org%3E Mailing List  Patch  Third Party Advisory 
https://lists.apache.org/thread.html/rc49cf1547ef6cac1be4b3c92339b2cae0acacf5acaba13cfa429a872@%3Cdev.creadur.apache.org%3E Mailing List  Patch  Third Party Advisory 
https://lists.apache.org/thread.html/rdbdd30510a7c4d0908fd22075c02b75bbc2e0d977ec22249ef3133cb@%3Ccommits.pulsar.apache.org%3E
https://lists.apache.org/thread.html/rde385b8b53ed046600ef68dd6b4528dea7566aaddb02c3e702cc28bc@%3Ccommits.creadur.apache.org%3E Mailing List  Patch  Third Party Advisory 
https://lists.apache.org/thread.html/rde8e70b95c992378e8570e4df400c6008a9839eabdfb8f800a3e5af6@%3Ccommits.pulsar.apache.org%3E
https://lists.apache.org/thread.html/rdef7d1380c86e7c0edf8a0f89a2a8db86fce5e363457d56b722691b4@%3Ccommits.pulsar.apache.org%3E
https://lists.apache.org/thread.html/rea812d8612fdc46842a2a57248cad4b01ddfdb1e9b037c49e68fdbfb@%3Ccommits.pulsar.apache.org%3E
https://lists.apache.org/thread.html/reb700e60b9642eafa4b7922bfee80796394135aa09c7a239ef9f7486@%3Ccommits.pulsar.apache.org%3E
https://lists.apache.org/thread.html/rf2ec93f4ca9a97d1958eb4a31b1830f723419ce9bf2018a6e5741d5b@%3Ccommits.pulsar.apache.org%3E
https://lists.apache.org/thread.html/rf797d119cc3f51a8d7c3c5cbe50cb4524c8487282b986edde83a9467@%3Ccommits.pulsar.apache.org%3E
https://lists.debian.org/debian-lts-announce/2020/11/msg00003.html Mailing List  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor cwe source acceptance level NIST   Provider acceptance level GitHub, Inc.  

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Change History

14 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-15250
NVD Published Date:
10/12/2020
NVD Last Modified:
04/15/2021
Source:
GitHub, Inc.