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CVE-2024-58387 – Unauthenticated Arbitrary File Read (Path Traversal) – Inspur Haiyue HCM Cloud (all

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Summary

CVE-2024-58387 is a path traversal vulnerability (CWE-22) in Inspur Haiyue HCM Cloud, a cloud-based human capital management platform marketed for large enterprises. The flaw resides in the /api/model_report/file/download endpoint, which fails to validate user-supplied path parameters, allowing unauthenticated remote attackers to read arbitrary files from the underlying server. The vulnerability carries a High severity rating and has been associated with active exploitation attempts observed in the wild.

Technical details

  • Root cause: the /api/model_report/file/download endpoint accepts index and ext request parameters that are used to construct a file path without sanitization or restriction to an intended directory.
  • Trigger condition: an attacker sends a crafted HTTP request to the endpoint, manipulating the index and ext parameters to traverse outside the intended file storage directory (e.g., using ../-style sequences).
  • Attack vector: network-based, requires no authentication and no user interaction, making it low-complexity to exploit.
  • Impact: arbitrary file disclosure, including operating system files such as /etc/passwd, application database files, and system/application configuration files — potentially exposing credentials, employee personal data, and other sensitive HR platform contents.
  • Exploitation activity targeting this endpoint was first observed and documented by the Shadowserver Foundation on November 4, 2024.

Affected software

  • Inspur Haiyue HCM Cloud — all versions (no version range restriction specified by the vendor/CVE record).

Severity

  • CVSS v3.1 Base Score: 7.5 (High)
  • CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • A CVSS v4.0 score of 8.7 (High) has also been assigned to this vulnerability (vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N).

Mitigation and recommended actions

  • Immediate: Apply the vendor-supplied patch or updated build of Inspur Haiyue HCM Cloud that remediates path traversal on the /api/model_report/file/download endpoint. Organizations should contact Inspur directly to confirm the patched release applicable to their deployment, as no specific fixed version number is published in the CVE record.
  • If no patch is available: Restrict network exposure of the HCM Cloud application to the internet, placing it behind a VPN or access-controlled network segment; deploy a web application firewall (WAF) rule to block path traversal sequences and suspicious requests to the /api/model_report/file/download endpoint; monitor logs for requests containing traversal patterns (e.g., ../) or anomalous index/ext parameter values; and restrict the web server/application process’s file-system permissions to limit the blast radius of any successful file read.

References

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