CWE
20
Advisory Published
Advisory Published
Updated

CVE-2023-38495: Crossplane vulnerable to possible image tampering from missing image validation for Packages

First published: Thu Jul 27 2023(Updated: )

### Impact Crossplanes 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. ### Patches The problem has been fixed in 1.11.5, 1.12.3 and 1.13.0, all the supported versions of Crossplane at the time of writing. ### Workarounds Only using images from trusted sources and keeping Package editing/creating privileges to administrators only, which should be both considered already best practices. ### References See `ADA-XP-23-11` in the Security Audit's [report](https://github.com/crossplane/crossplane/blob/ac8b24fe739c5d942ea885157148497f196c3dd3/security/ADA-security-audit-23.pdf). ### Credits This was reported as `ADA-XP-23-11` by @AdamKorcz and @DavidKorczynski from Ada Logic and facilitated by OSTIF as part of the Security Audit sponsored by CNCF.

Credit: security-advisories@github.com security-advisories@github.com

Affected SoftwareAffected VersionHow to fix
Cncf Crossplane<1.11.5
Cncf Crossplane>=1.12.0<1.12.3
go/github.com/crossplane/crossplane>=1.12.0<1.12.3
1.12.3
go/github.com/crossplane/crossplane<1.11.5
1.11.5

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Frequently Asked Questions

  • What is the severity of CVE-2023-38495?

    The severity of CVE-2023-38495 is critical (9.8/10).

  • How does CVE-2023-38495 impact Crossplane?

    CVE-2023-38495 allows an attacker to tamper with Crossplane packages, compromising the security and integrity of the system.

  • Which versions of Crossplane are affected by CVE-2023-38495?

    Crossplane versions up to 1.11.5 and versions between 1.12.0 and 1.12.3 are affected by CVE-2023-38495.

  • How can I patch CVE-2023-38495?

    CVE-2023-38495 has been fixed in Crossplane versions 1.11.5, 1.12.3, and 1.13.0.

  • Where can I find more information about CVE-2023-38495?

    You can find more information about CVE-2023-38495 in the following references: [GitHub Advisory](https://github.com/crossplane/crossplane/security/advisories/GHSA-pj4x-2xr5-w87m), [NVD](https://nvd.nist.gov/vuln/detail/CVE-2023-38495).

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