CVE-2024-56337 Details
Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in Apache Tomcat.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.1, from 10.1.0-M1 through 10.1.33, from 9.0.0.M1 through 9.0.97.

The mitigation for CVE-2024-50379 was incomplete.

Users running Tomcat on a case insensitive file system with the default servlet write enabled (readonly initialisation
parameter set to the non-default value of false) may need additional configuration to fully mitigate CVE-2024-50379 depending on which version of Java they are using with Tomcat:
- running on Java 8 or Java 11: the system property sun.io.useCanonCaches must be explicitly set to false (it defaults to true)
- running on Java 17: the system property sun.io.useCanonCaches, if set, must be set to false (it defaults to false)
- running on Java 21 onwards: no further configuration is required (the system property and the problematic cache have been removed)

Tomcat 11.0.3, 10.1.35 and 9.0.99 onwards will include checks that sun.io.useCanonCaches is set appropriately before allowing the default servlet to be write enabled on a case insensitive file system. Tomcat will also set sun.io.useCanonCaches to false by default where it can.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2024-56337
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
25.96 Probability of exploitation activity being observed over the next 30 days (96th percentile)
CVSS score for CVE-2024-56337
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
9.8 Critical
Products affected by CVE-2024-56337
Tomcat 9.0.43
Tomcat 9.0.44
Tomcat 9.0.45
Tomcat 9.0.46
Tomcat 9.0.48
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Low
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CVE-2024-56337 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 16,949 25.43%
CN 12,586 18.89%
IN 4,606 6.91%
DE 3,327 4.99%
BR 2,661 3.99%
KR 2,315 3.47%
JP 2,135 3.20%
SG 1,655 2.48%
FR 1,464 2.20%
GB 1,338 2.01%

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CVE-2024-56337 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 40,064 79.23%
Telecommunications 7,028 13.90%
Education 1,167 2.31%
Government/Politics 479 0.95%
Business Services 369 0.73%
Finance 307 0.61%
Healthcare/Wellness 202 0.40%
Manufacturing 200 0.40%
Retail 155 0.31%
Transportation 92 0.18%

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