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Code injection in Apache Ant

High severity GitHub Reviewed Published Feb 3, 2021 to the GitHub Advisory Database • Updated Apr 2, 2024

Package

maven org.apache.ant:ant (Maven)

Affected versions

= 1.10.8

Patched versions

1.10.9

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.

References

Published by the National Vulnerability Database Oct 1, 2020
Reviewed Feb 3, 2021
Published to the GitHub Advisory Database Feb 3, 2021
Last updated Apr 2, 2024

Severity

High
7.5
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weaknesses

CVE ID

CVE-2020-11979

GHSA ID

GHSA-f62v-xpxf-3v68

Source code

Credits

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