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Sensitive Data Exposure in Apache Ant

Moderate severity GitHub Reviewed Published Sep 14, 2020 to the GitHub Advisory Database • Updated Feb 1, 2023

Package

maven org.apache.ant:ant (Maven)

Affected versions

>= 1.1, < 1.9.15
>= 1.10.0, < 1.10.8

Patched versions

1.9.15
1.10.8

Description

Apache Ant 1.1 to 1.9.14 and 1.10.0 to 1.10.7 uses the default temporary directory identified by the Java system property java.io.tmpdir for several tasks and may thus leak sensitive information. The fixcrlf and replaceregexp tasks also copy files from the temporary directory back into the build tree allowing an attacker to inject modified source files into the build process.

References

Published by the National Vulnerability Database May 14, 2020
Reviewed Sep 14, 2020
Published to the GitHub Advisory Database Sep 14, 2020
Last updated Feb 1, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Local
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS score

0.077%
(35th percentile)

Weaknesses

CVE ID

CVE-2020-1945

GHSA ID

GHSA-4p6w-m9wc-c9c9

Source code

No known source code
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