CVE-2025-24813
Apache Tomcat Path Equivalence Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 22 April 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
Path Equivalence: 'file.Name' (Internal Dot) leading to Remote Code Execution and/or Information disclosure and/or malicious content added to uploaded files via write enabled Default Servlet in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.2, from 10.1.0-M1 through 10.1.34, from 9.0.0.M1 through 9.0.98. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions may also be affected. If all of the following were true, a malicious user was able to view security sensitive files and/or inject content into those files: - writes enabled for the default servlet (disabled by default) - support for partial PUT (enabled by default) - a target URL for security sensitive uploads that was a sub-directory of a target URL for public uploads - attacker knowledge of the names of security sensitive files being uploaded - the security sensitive files also being uploaded via partial PUT If all of the following were true, a malicious user was able to perform remote code execution: - writes enabled for the default servlet (disabled by default) - support for partial PUT (enabled by default) - application was using Tomcat's file based session persistence with the default storage location - application included a library that may be leveraged in a deserialization attack Users are recommended to upgrade to version 11.0.3, 10.1.35 or 9.0.99, which fixes the issue.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 99.93% probability · 100th percentile
- CISA KEV
- Listed 1 April 2025 · due 22 April 2025
- Weakness
- CWE-44, CWE-502, CWE-706
- Affected
- apache/tomcat · debian/debian linux · netapp/bootstrap os
- Source
- security@apache.org
CISA notes
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://lists.apache.org/thread/j5fkjv2k477os90nczf2v9l61fb0kkgq ; https://nvd.nist.gov/vuln/detail/CVE-2025-24813
References
- https://lists.apache.org/thread/j5fkjv2k477os90nczf2v9l61fb0kkgqVendor Advisory
- http://www.openwall.com/lists/oss-security/2025/03/10/5Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/04/msg00003.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20250321-0001/Third Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-24813-detect-apache-tomcat-rceIssue Tracking
- https://www.vicarius.io/vsociety/posts/cve-2025-24813-mitigate-apache-tomcat-rceIssue Tracking
- https://www.vicarius.io/vsociety/posts/cve-2025-24813-tomcat-detect-vulnerabilityIssue Tracking
- https://www.vicarius.io/vsociety/posts/cve-2025-24813-tomcat-mitigation-vulnerabilityIssue Tracking
- https://github.com/absholi7ly/POC-CVE-2025-24813/blob/main/README.mdExploit
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-24813Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.