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apache/ant · Security

Code injection in Apache Ant

GHSA ID
GHSA-f62v-xpxf-3v68
CVE ID
CVE-2020-11979
Severity
high
Published
Updated
CVSS
7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS v3
7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Description

As mitigation for CVE-2020-1945 Apache Ant 1.10.8 changed the permissions of temporary files it created so that only the current user was allowed to access them. Unfortunately the fixcrlf task deleted the temporary file and created a new one without said protection, effectively nullifying the effort. This would still allow an attacker to inject modified source files into the build process.

CWEs

  • CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
  • CWE-94 · Improper Control of Generation of Code ('Code Injection')

References