Path Traversal in Artifacthub Hub
CVE-2023-45823
Artifact Hub is a web-based application that enables finding, installing, and publishing packages and configurations for CNCF projects. During a security audit of Artifact Hub's code base a security researcher identified a bug in which by using symbolic links in certain kinds of repositories loaded into Artifact Hub, it was possible to read internal files. Artifact Hub indexes content from a variety of sources, including git repositories. When processing git based repositories, Artifact Hub clones the repository and, depending on the artifact kind, reads some files from it. During this process, in some cases, no validation was done to check if the file was a symbolic link. This made possible to read arbitrary files in the system, potentially leaking sensitive information. This issue has been resolved in version `1.16.0`. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.006 (48.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Artifacthub Hub — versions < 1.16.0
Weakness classification (CWE)
References
- github.com/artifacthub/hub/security/advisories/GHSA-hmq4-c2r4-5q8h (Third Party Advisory)
- artifacthub.io/packages/helm/artifact-hub/artifact-hub (Product)
Frequently asked questions
- What is CVE-2023-45823?
- CVE-2023-45823 is a high-severity vulnerability in Artifacthub Hub, classified under Path Traversal. CVSS score: 7.5/10. Published 2023-10-19.
- How severe is CVE-2023-45823?
- High severity. CVSS v3 base score is 7.5 out of 10.