CVE-2021-24122

Apache Tomcat information disclosure

Description

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.

Categories

5.9
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 61.38% Top 5%
Vendor Advisory apache.org
Affected: Apache Software Foundation Apache Tomcat
Published at:
Updated at:

References

Link Tags
https://lists.apache.org/thread.html/r1595889b083e05986f42b944dc43060d6b083022260b6ea64d2cec52%40%3Cannounce.tomcat.apache.org%3E mailing list vendor advisory
https://lists.apache.org/thread.html/rca833c6d42b7b9ce1563488c0929f29fcc95947d86e5e740258c8937%40%3Cdev.tomcat.apache.org%3E mailing list
https://lists.apache.org/thread.html/r776c64337495bf28b7d5597268114a888e3fad6045c40a0da0c66d4d%40%3Cdev.tomee.apache.org%3E mailing list
http://www.openwall.com/lists/oss-security/2021/01/14/1 third party advisory mailing list
https://lists.apache.org/thread.html/r1595889b083e05986f42b944dc43060d6b083022260b6ea64d2cec52%40%3Cannounce.apache.org%3E mailing list
https://lists.apache.org/thread.html/r7e0bb9ea415724550e2b325e143b23e269579e54d66fcd7754bd0c20%40%3Cdev.tomcat.apache.org%3E mailing list
https://lists.apache.org/thread.html/rb32a73b7cb919d4f44a2596b6b951274c0004fc8b0e393d6829a45f9%40%3Cusers.tomcat.apache.org%3E mailing list
https://lists.apache.org/thread.html/r7382e1e35b9bc7c8f320b90ad77e74c13172d08034e20c18000fe710%40%3Cdev.tomee.apache.org%3E mailing list
https://lists.debian.org/debian-lts-announce/2021/03/msg00018.html third party advisory mailing list
https://www.oracle.com//security-alerts/cpujul2021.html third party advisory
https://security.netapp.com/advisory/ntap-20210212-0008/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-24122?
CVE-2021-24122 has been scored as a medium severity vulnerability.
How to fix CVE-2021-24122?
To fix CVE-2021-24122, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-24122 being actively exploited in the wild?
It is possible that CVE-2021-24122 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~61% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-24122?
CVE-2021-24122 affects Apache Software Foundation Apache Tomcat.
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