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  5. CVE-2023-38495

CVE-2023-38495: Improper Input Validation

July 27, 2023 (updated August 3, 2023)

Crossplane is a framework for building cloud native control planes without needing to write code. In versions prior to 1.11.5, 1.12.3, and 1.13.0, Crossplane’s image backend does not validate the byte contents of Crossplane packages. As such, Crossplane does not detect if an attacker has tampered with a Package. The problem has been fixed in 1.11.5, 1.12.3 and 1.13.0. As a workaround, only use images from trusted sources and keep Package editing/creating privileges to administrators only.

References

  • github.com/crossplane/crossplane/blob/ac8b24fe739c5d942ea885157148497f196c3dd3/security/ADA-security-audit-23.pdf
  • github.com/crossplane/crossplane/security/advisories/GHSA-pj4x-2xr5-w87m
  • nvd.nist.gov/vuln/detail/CVE-2023-38495

Code Behaviors & Features

Detect and mitigate CVE-2023-38495 with GitLab Dependency Scanning

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Affected versions

All versions before 1.11.5, all versions starting from 1.12.0 before 1.12.3

Fixed versions

  • v1.11.5
  • v1.12.3

Solution

Upgrade to versions 1.11.5, 1.12.3 or above.

Impact 9.8 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-20: Improper Input Validation

Source file

go/github.com/crossplane/crossplane/CVE-2023-38495.yml

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