CVE-2024-22263 Flaw in Spring Cloud Data Flow Could Lead to Server Takeover
A security vulnerability, identified as CVE-2024-22263, has been discovered in Spring Cloud Data Flow, a framework widely used for microservices-based streaming and batch data processing in Cloud Foundry and Kubernetes environments. This vulnerability, categorized as high-severity, poses a significant risk of arbitrary file write, potentially leading to severe server compromises.
The vulnerability specifically affects the Skipper server component within Spring Cloud Data Flow. The Skipper server, which is designed to handle package upload requests, fails to properly sanitize the upload path. This oversight allows a malicious user with access to the Skipper server API to craft a malicious upload request. Consequently, the attacker can write arbitrary files to any location on the file system, potentially compromising the entire server.
The following versions of Spring Cloud Skipper are affected:
- Versions 2.11.0 to 2.11.2
- All 2.10.x versions
The vulnerability was identified and responsibly reported by security researchers cokeBeer, crisprss, LFYSec, and skyxsecurity.
To mitigate the risk posed by the CVE-2024-22263 vulnerability, users of the affected versions are strongly advised to upgrade to the fixed version, 2.11.3. This update ensures that the upload path is properly sanitized, thereby preventing the exploitation of this vulnerability.
In addition to applying the patch, organizations using Spring Cloud Data Flow should also:
- Review and restrict access to the Skipper server API to authorized personnel only.
- Monitor server logs for suspicious activity.
- Implement security measures such as intrusion detection systems (IDS) and web application firewalls (WAF) to detect and block malicious requests.
