CVE Catalog

CVE-2023-54405

CriticalCVSS 9.8
Published: Translated: NVD NIST

Summary

H3C CVM, the Cloud Virtualization Management component of the H3C CAS cloud platform, contains an unauthenticated arbitrary file upload vulnerability in the /cas/fileUpload/upload endpoint that allows remote attackers to write arbitrary files by manipulating the caller-supplied token parameter without restricting path traversal or file type. Attackers can exploit the path traversal in the token parameter to upload a malicious JSP file into a web-accessible directory and then request it to achieve remote code execution as the web-server user. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-14.

Risk Assessment

An unauthenticated attacker can upload a malicious JSP file and achieve remote code execution as the web-server user. This leads to full compromise of the H3C CAS platform and the managed cloud infrastructure.

Recommendation

Apply available patches or updates from H3C. Restrict network access to the /cas/fileUpload/upload endpoint and deploy WAF rules blocking executable file uploads.

Related vulnerabilities

Original NVD description (English source)

H3C CVM, the Cloud Virtualization Management component of the H3C CAS cloud platform, contains an unauthenticated arbitrary file upload vulnerability in the /cas/fileUpload/upload endpoint that allows remote attackers to write arbitrary files by manipulating the caller-supplied token parameter without restricting path traversal or file type. Attackers can exploit the path traversal in the token parameter to upload a malicious JSP file into a web-accessible directory and then request it to achieve remote code execution as the web-server user. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-14.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS