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CVE-2020-1953

CRITICALCVSS 10/10EPSS 6.68%

Last modified

CVE-2020-1953 is a critical-severity vulnerability rated 10/10 on the CVSS scale. Apache Commons Configuration uses a third-party library to parse YAML files which by default allows the instantiation of classes if the YAML includes special statements. Apache Commons Configuration versions 2.2, 2.3, 2.4, 2.5, 2.6 did not change the default settings of this library. EPSS estimates a 6.68% chance of exploitation in the next 30 days.

Description

Apache Commons Configuration uses a third-party library to parse YAML files which by default allows the instantiation of classes if the YAML includes special statements. Apache Commons Configuration versions 2.2, 2.3, 2.4, 2.5, 2.6 did not change the default settings of this library. So if a YAML file was loaded from an untrusted source, it could therefore load and execute code out of the control of the host application.

Metrics

CVSS 3.1
10/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS Probability
6.68%

93.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
ApacheCommons Configuration2.2
ApacheCommons Configuration2.3
ApacheCommons Configuration2.4
ApacheCommons Configuration2.5
ApacheCommons Configuration2.6
OracleDatabase Server11.2.0.4
OracleDatabase Server12.1.0.2
OracleDatabase Server12.2.0.1
OracleDatabase Server18c
OracleDatabase Server19c
OracleHealthcare Foundation7.1.1
OracleHealthcare Foundation7.2.0
OracleHealthcare Foundation7.2.1
OracleHealthcare Foundation7.3.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-1953?
Apache Commons Configuration uses a third-party library to parse YAML files which by default allows the instantiation of classes if the YAML includes special statements. Apache Commons Configuration versions 2.2, 2.3, 2.4, 2.5, 2.6 did not change the default settings of this library. So if a YAML file was loaded from an untrusted source, it could therefore load and execute code out of the control of the host application.
How severe is CVE-2020-1953?
CVE-2020-1953 has a CVSS score of 10/10 (CRITICAL severity). The EPSS model estimates a 6.68% probability of exploitation in the next 30 days.
How do I fix CVE-2020-1953?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-1953?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST