Full Report
CVE-2024-53677 is a critical vulnerability in Apache Struts 2 with a CVSS score of 9.5. This flaw in the file upload logic allows path traversal and uploading of malicious files, enabling remote code execution (RCE). Exploitation has been observed in the wild using public proo...
Analysis Summary
# Vulnerability: Critical RCE in Apache Struts 2 File Upload Logic
## CVE Details
- CVE ID: CVE-2024-53677
- CVSS Score: 9.5 (Critical)
- CWE: *Not specified in the context, but likely related to improper path handling (e.g., CWE-22: Improper Limitation of a Pathname to a Restricted Directory)*
## Affected Systems
- Products: Apache Struts 2
- Versions: *Not specified beyond general identification of Struts 2 vulnerability.*
- Configurations: Vulnerability resides within the file upload logic.
## Vulnerability Description
CVE-2024-53677 is a critical vulnerability residing in the file upload functionality of Apache Struts 2. The flaw is rooted in insufficient validation or sanitization of file paths, leading to a **Path Traversal** issue. Successful exploitation allows an unauthenticated attacker to upload arbitrary malicious files (such as web shells) onto the server, ultimately resulting in **Remote Code Execution (RCE)**.
## Exploitation
- Status: Exploited in the wild
- Complexity: *Not explicitly stated, but in-the-wild exploitation using public PoCs suggests relatively Low complexity.*
- Attack Vector: Network
## Impact
- Confidentiality: High (Due to RCE)
- Integrity: High (Due to RCE and malicious file upload)
- Availability: High (Due to RCE leading to potential system compromise)
## Remediation
### Patches
- Patch information is not detailed in the provided text. Users should refer to the official Apache Struts security advisories for the specific patched version.
### Workarounds
- Specific vendor workarounds are not detailed in the provided text. General mitigations usually focus on disabling or strictly controlling the affected file upload functionality until patching can occur.
## Detection
- Indicators of Compromise (IoCs): Attackers observed using public proof-of-concept exploits, specifically looking for successful exploitation by checking for output confirming the execution of arbitrary commands (e.g., printing identifying strings).
- Detection methods and tools: Monitor web application traffic for unexpected file upload requests targeting Struts components. Intrusion Detection Systems (IDS) or Web Application Firewalls (WAF) should be configured to flag path traversal sequences (`../`) in file upload parameters or the uploading of known malicious file extensions (e.g., JSP, ASPX).
## References
- Vendor advisories: Consult Apache Struts security release announcements for CVE-2024-53677.
- Relevant links - defanged: hxxps://www.bleepingcomputer.com/news/security/new-critical-apache-struts-flaw-exploited-to-find-vulnerable-servers/