CVE-2019-0233 Improper Preservation of Permissions in Apache Struts

What is CVE-2019-0233?

CVE-2019-0233 is a high-severity denial of service vulnerability in Apache Struts, published on 14 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An access permission override in Apache Struts 2.0.0 to 2.5.20 may cause a Denial of Service when performing a file upload.

Weakness: CWE-281

Which versions are affected by CVE-2019-0233?

2 open source packages ship an affected version, including org.apache.struts:struts2-core. It affects 5 products.

Products include Apache Struts, Oracle Communications Policy Management, Oracle Financial Services Data Integration Hub, Oracle Financial Services Market Risk Measurement and Management, Oracle Mysql Enterprise Monitor.

How do I fix CVE-2019-0233?

Upgrade org.apache.struts:struts2-core to 2.5.22 or later.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2019-0233 being exploited?

There is no known exploitation of CVE-2019-0233 in the wild and no public exploit code.

Other vulnerabilities in Apache Struts

• CVE-2020-17530 Apache Struts Remote Code Execution Exploited Critical 9.8
• CVE-2017-9791 Apache Struts 1 Improper Input Validation Exploited Critical 9.8
• CVE-2017-5638 Apache Struts Remote Code Execution Exploited Critical 9.8
• CVE-2012-0391 Apache Struts 2 Improper Input Validation Exploited Critical 9.8
• CVE-2018-11776 Apache Struts Remote Code Execution Exploited High 8.1

All Apache Struts vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-ccp5-gg58-pxfm.