Creation of Temporary File With Insecure Permissions Affecting gradle package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.04% (5th percentile)

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  • Snyk IDSNYK-UBUNTU2004-GRADLE-1246320
  • published15 Apr 2021
  • disclosed13 Apr 2021

Introduced: 13 Apr 2021

CVE-2021-29428  (opens in a new tab)
CWE-378  (opens in a new tab)
CWE-379  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:20.04 gradle.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gradle package and not the gradle package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

In Gradle before version 7.0, on Unix-like systems, the system temporary directory can be created with open permissions that allow multiple users to create and delete files within it. Gradle builds could be vulnerable to a local privilege escalation from an attacker quickly deleting and recreating files in the system temporary directory. This vulnerability impacted builds using precompiled script plugins written in Kotlin DSL and tests for Gradle plugins written using ProjectBuilder or TestKit. If you are on Windows or modern versions of macOS, you are not vulnerable. If you are on a Unix-like operating system with the "sticky" bit set on your system temporary directory, you are not vulnerable. The problem has been patched and released with Gradle 7.0. As a workaround, on Unix-like operating systems, ensure that the "sticky" bit is set. This only allows the original user (or root) to delete a file. If you are unable to change the permissions of the system temporary directory, you can move the Java temporary directory by setting the System Property java.io.tmpdir. The new path needs to limit permissions to the build user only. For additional details refer to the referenced GitHub Security Advisory.

CVSS Scores

version 3.1