Authorization Bypass Through User-Controlled Key Affecting github.com/project-zot/zot/pkg/api/ package, versions <2.1.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published11 Jul 2024
- disclosed9 Jul 2024
- creditBlake Burkhart
Introduced: 9 Jul 2024
CVE-2024-39897 (opens in a new tab)How to fix?
Upgrade github.com/project-zot/zot/pkg/api/ to version 2.1.0 or higher.
Overview
Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key due to the GetBlob() function. An attacker can read images that the accessControl policy denies if they have read access to any other second repository.
Notes:
This attack only allows accessing blobs, both config and layers, by digest. Manifests are not included.
This attack requires the attacker to know the name of a private image and its layer digests.
Workaround
The attack may be mitigated by configuring dedupe: false in the "storage" settings. dedupe is enabled by default using the BoltDB cache driver.