Spring - Path Traversal (CVE-2024-38816)
233Exploiting IPs reported
Applications serving static resources through the functional web frameworks WebMvc.fn or WebFlux.fn are vulnerable to path traversal attacks. An attacker can craft malicious HTTP requests and obtain any file on the file system that is also accessible to the process in which the Spring application is running. Specifically, an application is vulnerable when both of the following are true: * the web application uses RouterFunctions to serve static resources * resource handling is explicitly configured with a FileSystemResource location However, malicious requests are blocked and rejected when any of the following is true: * the Spring Security HTTP Firewall https://docs.spring.io/spring-security/reference/servlet/exploits/firewall.html is in use * the application runs on Tomcat or Jetty
CrowdSec analysis
CVE-2024-38816 is a vulnerability impacting applications that serve static resources via certain Spring web frameworks, allowing attackers to perform path traversal and access arbitrary files on the underlying file system.
CrowdSec has been tracking this vulnerability and its exploits since 15th of December 2023.
CrowdSec network observations suggest that most exploitation of CVE-2024-38816 involves focused reconnaissance to identify viable targets. Attackers typically tailor their campaigns based on system exposure and configuration. It is unlikely that a given attack is accidental. In addition, according to the CrowdSec network, attack volume against CVE-2024-38816 has dipped slightly compared to the previous week. Although still commonly targeted, the decline suggests a cooling-off period. Long-term relevance remains, but attention is waning.
Exploitation attempts typically involve requests containing /static/link/.. in the path, as attackers try to traverse directories to access sensitive files.
Exploitation
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Common Weakness Enumeration (CWE)
Protection
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Blocklist
With our advanced worldwide network detection, CrowdSec can provide a list of IPs known for exploiting the vulnerability.
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