CVE-2020-11979: Code Injection

Published Oct 1, 2020
·
Updated

Apache Ant could allow a remote authenticated attacker to bypass security restrictions, caused by an insecure temporary file flaw. By sending a specially-crafted request, an attacker could exploit this vulnerability to inject modified source files into the build process.

Other sources

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.

Affected Software

84 affected componentsFixes available
redhat/jenkins<0:2.263.3.1612433584-1.el7
0:2.263.3.1612433584-1.el7
redhat/conmon<2:2.0.21-1.rhaos4.5.el7
2:2.0.21-1.rhaos4.5.el7
redhat/jenkins<0:2.263.3.1612434332-1.el7
0:2.263.3.1612434332-1.el7
redhat/machine-config-daemon<0:4.5.0-202102050524.p0.git.2594.ff3b8c0.el8
0:4.5.0-202102050524.p0.git.2594.ff3b8c0.el8
redhat/openshift<0:4.5.0-202102050524.p0.git.0.9229406.el7
0:4.5.0-202102050524.p0.git.0.9229406.el7
redhat/openshift-ansible<0:4.5.0-202102031005.p0.git.0.c6839a2.el7
0:4.5.0-202102031005.p0.git.0.c6839a2.el7
redhat/openshift-clients<0:4.5.0-202102051529.p0.git.3612.61b096a.el7
0:4.5.0-202102051529.p0.git.3612.61b096a.el7
redhat/runc<0:1.0.0-72.rhaos4.5.giteadfc6b.el8
0:1.0.0-72.rhaos4.5.giteadfc6b.el8
redhat/jenkins<0:2.263.3.1612434510-1.el8
0:2.263.3.1612434510-1.el8
maven/org.apache.ant:ant=1.10.8
1.10.9
Apache Ant=1.10.8
Gradle Gradle<6.8.0
Fedoraproject Fedora=31
Fedoraproject Fedora=32
Fedoraproject Fedora=33
Oracle Agile Engineering Data Management=6.2.1.0
Oracle API Gateway=11.1.2.4.0
Oracle Banking Platform=2.4.0
Oracle Banking Platform=2.4.1
Oracle Banking Platform=2.6.2
Oracle Banking Platform=2.7.0
Oracle Banking Platform=2.7.1
Oracle Banking Platform=2.8.0
Oracle Banking Treasury Management=14.4
Oracle Communications Unified Inventory Management=7.4.0
Oracle Communications Unified Inventory Management=7.4.1
Oracle Data Integrator=12.2.1.3.0
Oracle Data Integrator=12.2.1.4.0
Oracle Endeca Information Discovery Studio=3.2.0.0
Oracle Enterprise Repository=11.1.1.7.0
Oracle Financial Services Analytical Applications Infrastructure>=8.0.6<=8.0.9
Oracle Financial Services Analytical Applications Infrastructure=8.1.0
Oracle Financial Services Analytical Applications Infrastructure=8.1.1
Oracle FLEXCUBE Private Banking=12.0.0
Oracle FLEXCUBE Private Banking=12.1.0
Oracle Primavera Gateway>=16.2.0<=16.2.11
Oracle Primavera Gateway>=17.12.0<=17.12.9
Oracle Primavera Unifier>=17.7<=17.12
Oracle Primavera Unifier=16.1
Oracle Primavera Unifier=16.2
Oracle Primavera Unifier=18.8
Oracle Primavera Unifier=19.12
Oracle Primavera Unifier=20.12
Oracle Real-time Decision Server=3.2.0.0
Oracle Real-time Decision Server=11.1.1.9.0
Oracle Retail Advanced Inventory Planning=14.1
Oracle Retail Assortment Planning=16.0.3
Oracle Retail Category Management Planning \& Optimization=16.0.3
Oracle Retail EFTLink=19.0.1
Oracle Retail EFTLink=20.0.0
Oracle Retail Financial Integration=14.1.3
Oracle Retail Financial Integration=15.0.3
Oracle Retail Financial Integration=16.0.3
Oracle Retail Integration Bus=15.0.3
Oracle Retail Item Planning=16.0.3
Oracle Retail Macro Space Optimization=16.0.3
Oracle Retail Merchandise Financial Planning=16.0.3
Oracle Retail Merchandising System=14.1.3.2
Oracle Retail Merchandising System=16.0.3
Oracle Retail Predictive Application Server=14.1
Oracle Retail Regular Price Optimization=16.0.3
Oracle Retail Replenishment Optimization=16.0.3
Oracle Retail Service Backbone=14.1.3
Oracle Retail Service Backbone=15.0.3
Oracle Retail Service Backbone=16.0.3
Oracle Retail Size Profile Optimization=16.0.3
Oracle Retail Store Inventory Management=14.1.3.9
Oracle Retail Store Inventory Management=15.0.3.0
Oracle Retail Store Inventory Management=16.0.3.0
Oracle Retail Xstore Point of Service=15.0.4
Oracle Retail Xstore Point of Service=16.0.6
Oracle Retail Xstore Point of Service=17.0.4
Oracle Retail Xstore Point of Service=18.0.3
Oracle Retail Xstore Point of Service=19.0.2
Oracle Storagetek Acsls=8.5.1
Oracle Storagetek Tape Analytics=2.4
Oracle TimesTen In-Memory Database<11.2.2.8.27
Oracle Utilities Framework=4.3.0.5.0
Oracle Utilities Framework=4.3.0.6.0
Oracle Utilities Framework=4.4.0.0.0
Oracle Utilities Framework=4.4.0.2.0
IBM Cognos Controller<=11.0.0 - 11.0.1 FP3
IBM Controller<=11.1.0
redhat/ant<1.10.9
1.10.9

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/jenkins to a version that resolves this vulnerability.

    Fixed in 0:2.263.3.1612433584-1.el7
  2. Upgrade

    Upgrade redhat/conmon to a version that resolves this vulnerability.

    Fixed in 2:2.0.21-1.rhaos4.5.el7
  3. Upgrade

    Upgrade redhat/jenkins to a version that resolves this vulnerability.

    Fixed in 0:2.263.3.1612434332-1.el7
  4. Upgrade

    Upgrade redhat/machine-config-daemon to a version that resolves this vulnerability.

    Fixed in 0:4.5.0-202102050524.p0.git.2594.ff3b8c0.el8
  5. Upgrade

    Upgrade redhat/openshift to a version that resolves this vulnerability.

    Fixed in 0:4.5.0-202102050524.p0.git.0.9229406.el7
  6. Upgrade

    Upgrade redhat/openshift-ansible to a version that resolves this vulnerability.

    Fixed in 0:4.5.0-202102031005.p0.git.0.c6839a2.el7
  7. Upgrade

    Upgrade redhat/openshift-clients to a version that resolves this vulnerability.

    Fixed in 0:4.5.0-202102051529.p0.git.3612.61b096a.el7
  8. Upgrade

    Upgrade redhat/runc to a version that resolves this vulnerability.

    Fixed in 0:1.0.0-72.rhaos4.5.giteadfc6b.el8
  9. Upgrade

    Upgrade redhat/jenkins to a version that resolves this vulnerability.

    Fixed in 0:2.263.3.1612434510-1.el8
  10. Upgrade

    Upgrade maven/org.apache.ant:ant to a version that resolves this vulnerability.

    Fixed in 1.10.9
  11. Upgrade

    Upgrade redhat/ant to a version that resolves this vulnerability.

    Fixed in 1.10.9
  12. Upgrade

    Upgrade Apache Ant to a version that resolves this vulnerability.

    Fixed in 1.10.8
  13. Configuration

    Apply the CVE-2020-1945 mitigation behavior (as in Apache Ant 1.10.8) so the temporary files Apache Ant creates are accessible only by the current user.

    Apache Ant (temp file permissions for CVE-2020-1945 mitigation) temporary file permissions = restrict to current user only

Event History

Oct 1, 2020
CVE Published
12:00 AM
CVE Published
via MITRE·07:24 PM
Data Sourced
via MITRE·07:24 PM
DescriptionWeakness
Dec 2, 2020
Data Sourced
via Red Hat·04:30 PM
DescriptionSeverityAffected Software
Feb 3, 2021
Advisory Published
via GitHub·07:16 PM
Feb 18, 2025
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2020-11979?

The severity of CVE-2020-11979 is rated as medium.

2

How do I fix CVE-2020-11979?

You can fix CVE-2020-11979 by updating to the patched versions of the affected packages, such as Jenkins 2.263.3.1612433584-1.el7 or Apache Ant 1.10.9.

3

What are the affected software versions for CVE-2020-11979?

Affected software versions include Apache Ant 1.10.8, Jenkins 2.263.3.1612433584-1.el7, and several other Red Hat packages.

4

Who is impacted by CVE-2020-11979?

Users of the affected versions of Apache Ant and Jenkins on Red Hat systems are impacted by CVE-2020-11979.

5

What type of vulnerability is CVE-2020-11979?

CVE-2020-11979 is a security vulnerability related to improper protections on temporary files created during a task.

Company

Resources

Contact

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