CVE-2020-15250: apache pluto
Vulnerability summary
CVE-2020-15250 is a medium (CVSS 5.5) vulnerability in apache pluto. EPSS estimates a 1.70% chance of exploitation in the next 30 days, higher than 76.7% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 0 · Related 1Timeline
- 12-10-2020PublishedVulnerability first disclosed.
- 07-10-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
7 scores · 6 sources · 2 versions- CVE.orgCNA4.4MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:NDiffers
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- OSV · ChainguardEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- OSV · MavenEcosystem advisory · calculated4.4MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:NDiffers
EPSS trend
Probability
1.70%
Chance of exploitation in the next 30 days
Percentile
77%
Versus all other CVEs
30-day change
0.00 pp
From 1.70% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundJunit4
Maturity: poc
Weaknesses
CWE · root cause- CWE-200Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
- CWE-732Incorrect Permission Assignment for Critical ResourceThe product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.
Affected systems
Chainguard90 products
- eco-java-gradle-1.11All versions (No fix recorded)
- eco-java-gradle-2.0All versions (No fix recorded)
- eco-java-gradle-2.1All versions (No fix recorded)
- eco-java-gradle-2.10All versions (No fix recorded)
- eco-java-gradle-2.11All versions (No fix recorded)
Debian2 products
- junit4< 4.13.1-1 | < 4.12-4+deb9u1
- debian_linuxEOL9.0
Junit2 products
- junit4≥ 4.7, < 4.13.1
- junit≥ 4.7, < 4.13.1
Apache1 product
- pluto< 3.1.1
Junit-team1 product
- junit4< 4.13.1
Mageia1 product
- junit< 4.12-7.1.mga7
Oracle1 product
Ubuntu1 product
- junit4All versions (No fix recorded) | < 4.12-4ubuntu1.1 | < 4.12-8~18.04.1 | < 4.12-8ubuntu0.20.04.1
8 vendors · 99 products
References
80 links- github.com/junit-team/junit4/security/advisories/GHSA-269g-pwp5-87ppX Refsource CONFIRMAdvisoryREPORTEVIDENCEWEBExploitThird Party Advisory
- github.com/junit-team/junit4/commit/610155b8c22138329f0723eec22521627dbc52aeX Refsource MISCREPORTFIXWEBPatchThird Party Advisory
- github.com/junit-team/junit4/blob/7852b90cfe1cea1e0cdaa19d490c83f0d8684b50/doc/ReleaseNotes4.13.1.mdX Refsource MISCREPORTAdvisoryWEBRelease NotesThird Party Advisory
- junit.org/junit4/javadoc/4.13/org/junit/rules/TemporaryFolder.htmlX Refsource MISCREPORTAdvisoryWEBVendor Advisory
Show all 80 references
- lists.debian.org/debian-lts-announce/2020/11/msg00003.htmlMailing ListX Refsource MLISTAdvisoryWEBThird Party Advisory
- github.com/junit-team/junit4PACKAGE