Is CVE-2021-24122 being actively exploited?

It is not currently in CISA's KEV catalog. Its EPSS exploitation probability is 23%.

What products does CVE-2021-24122 affect?

Tracked products affected include Apache Tomcat, Debian, Agile Product Lifecycle Management (PLM). Check the version you run to see whether it is affected.

How do I fix CVE-2021-24122?

Apply the vendor fix in your normal patch cycle. Upgrade affected products to a fixed version.

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CVE-2021-24122

Q: What is CVE-2021-24122?

CVE-2021-24122 is a medium-severity software vulnerability (Information disclosure) with a CVSS score of 5.9. When serving resources from a network location using the NTFS file system, Apache Tomcat versions 10.0.0-M1 to 10.0.0-M9, 9.0.0.M1 to 9.0.39, 8.5.0 to 8.5.59 and 7.0.0 to 7.0.106 were susceptible to JSP source code disclosure in some config

MEDIUM severity · CVSS 5.9 · Information disclosure

5.9CVSS MEDIUM

Summary

When serving resources from a network location using the NTFS file system, Apache Tomcat versions 10.0.0-M1 to 10.0.0-M9, 9.0.0.M1 to 9.0.39, 8.5.0 to 8.5.59 and 7.0.0 to 7.0.106 were susceptible to JSP source code disclosure in some configurations. The root cause was the unexpected behaviour of the JRE API File.getCanonicalPath() which in turn was caused by the inconsistent behaviour of the Windows API (FindFirstFileW) in some circumstances.

Impact & exploitability

Attack vectorNetwork

Attack complexityHigh

Privileges requiredNone

User interactionNone

Confidentiality impactHigh

Integrity impactNone

Availability impactNone

Exploit probability (EPSS)23%

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

Affected products we track (3)

Apache Tomcat Debian Agile Product Lifecycle Management (PLM)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

CVE-2021-24122

Summary

Impact & exploitability

Affected products we track (3)

Recommendation

Additional information