Encrypted-image access via wrong manifest authorization
Published Mar 25, 2022 · Updated Apr 22, 2025
Incorrect authorization in containerd imgcrypt before 1.1.4 allows remote attackers to run previously decrypted encrypted images without keys. In CheckAuthorization, cryptManifestList stops at the first manifest and returns success when that nonlocal manifest's layers are absent. Exploitation requires a shared cache, a multi-architecture image with the host architecture after another entry, and indirect ctr-enc access through a management stack; the bounded consequence is access to an image another user decrypted.
Summary
What happened
Incorrect authorization in containerd imgcrypt before 1.1.4 allows remote attackers to run previously decrypted encrypted images without keys. In CheckAuthorization, cryptManifestList stops at the first manifest and returns success when that nonlocal manifest's layers are absent. Exploitation requires a shared cache, a multi-architecture image with the host architecture after another entry, and indirect ctr-enc access through a management stack; the bounded consequence is access to an image another user decrypted.
The record
- CVE
- CVE-2022-24778
- Published
- Mar 25, 2022
- Updated
- Apr 22, 2025
- Vendor
- containerd
- Product
- imgcrypt
- Classifications
- CWE-285, CWE-863, T1610
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 25, 2022CVE publishedPublication date reported by the CVE source.
- Apr 22, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 1.1.4
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Multi-architecture CheckAuthorization bypass demonstrationproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo