Information disclosure in Apache Pluto
CVE-2020-15250
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 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.
EPSS exploit prediction
EPSS: 0.017 (76.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
- Apache Pluto
- Junit Junit4
- Junit-Team Junit4 — versions < 4.13.1
- Oracle Communications Cloud Native Core Policy — versions 1.14.0
- Debian Linux — versions 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/junit-team/junit4/security/advisories/GHSA-269g-pwp5-87pp (Exploit, Third Party Advisory)
- github.com/junit-team/junit4/commit/610155b8c22138329f0723eec22521627dbc52ae (Patch, Third Party Advisory)
- github.com/junit-team/junit4/blob/7852b90cfe1cea1e0cdaa19d490c83f0d8684b50/doc/… (Third Party Advisory, Release Notes)
- junit.org/junit4/javadoc/4.13/org/junit/rules/TemporaryFolder.html (Vendor Advisory)
- lists.apache.org/thread.html/r5f8841507576f595bb783ccec6a7cb285ea90d4e6f5043eae… (mailing-list)
- lists.apache.org/thread.html/rbaec90e699bc7c7bd9a053f76707a36fda48b6d558f31dc79… (mailing-list)
- lists.apache.org/thread.html/r717877028482c55acf604d7a0106af4ca05da4208c708fb15… (mailing-list)
- lists.apache.org/thread.html/rb2771949c676ca984e58a5cd5ca79c2634dee1945e0406e48… (mailing-list)
- lists.apache.org/thread.html/rde385b8b53ed046600ef68dd6b4528dea7566aaddb02c3e70… (mailing-list)
- lists.apache.org/thread.html/rc49cf1547ef6cac1be4b3c92339b2cae0acacf5acaba13cfa… (mailing-list)
Frequently asked questions
- What is CVE-2020-15250?
- CVE-2020-15250 is a medium-severity vulnerability in Apache Pluto, classified under Information Disclosure. CVSS score: 4.4/10. Published 2020-10-12.
- How severe is CVE-2020-15250?
- Medium severity. CVSS v3 base score is 4.4 out of 10.
- Is CVE-2020-15250 known to be exploited?
- 27 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.