Path Traversal in Hoverfly

CVE-2024-45388

Hoverfly is a lightweight service virtualization/ API simulation / API mocking tool for developers and testers. The `/api/v2/simulation` POST handler allows users to create new simulation views from the contents of a user-specified file. This feature can be abused by an attacker to read arbitrary files from the Hoverfly server. Note that, although the code prevents absolute paths from being specified, an attacker can escape out of the `hf.Cfg.ResponsesBodyFilesPath` base path by using `../` segments and reach any arbitrary files. This issue was found using the Uncontrolled data used in path expression CodeQL query for python. Users are advised to make sure the final path (`filepath.Join(hf.Cfg.ResponsesBodyFilesPath, filePath)`) is contained within the expected base path (`filepath.Join(hf.Cfg.ResponsesBodyFilesPath, "/")`). This issue is also tracked as GHSL-2023-274.

Vulnerability class: Information Disclosure

EPSS: 0.558 (99.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-45388?
CVE-2024-45388 is a high-severity vulnerability in Hoverfly, classified under Information Disclosure. CVSS score: 7.5/10. Published 2024-09-02.
How severe is CVE-2024-45388?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2024-45388 known to be exploited?
20 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.