Vulnerability Details CVE-2024-39897
zot is an OCI image registry. Prior to 2.1.0, the cache driver `GetBlob()` allows read access to any blob without access control check. If a Zot `accessControl` policy allows users read access to some repositories but restricts read access to other repositories and `dedupe` is enabled (it is enabled by default), then an attacker who knows the name of an image and the digest of a blob (that they do not have read access to), they may maliciously read it via a second repository they do have read access to.
This attack is possible because [`ImageStore.CheckBlob()` calls `checkCacheBlob()`](https://github.com/project-zot/zot/blob/v2.1.0-rc2/pkg/storage/imagestore/imagestore.go#L1158-L1159) to find the blob a global cache by searching for the digest. If it is found, it is copied to the user requested repository with `copyBlob()`. The attack may be mitigated by configuring "dedupe": false in the "storage" settings. The vulnerability is fixed in 2.1.0.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 21.5%
CVSS Severity
CVSS v3 Score 4.3
Products affected by CVE-2024-39897
-
cpe:2.3:a:zotregistry:zot:-
-
cpe:2.3:a:zotregistry:zot:0.2.6
-
cpe:2.3:a:zotregistry:zot:0.2.7
-
cpe:2.3:a:zotregistry:zot:0.2.8
-
cpe:2.3:a:zotregistry:zot:0.2.9
-
cpe:2.3:a:zotregistry:zot:0.3.0
-
cpe:2.3:a:zotregistry:zot:0.3.1
-
cpe:2.3:a:zotregistry:zot:0.3.10
-
cpe:2.3:a:zotregistry:zot:0.3.2
-
cpe:2.3:a:zotregistry:zot:0.3.3
-
cpe:2.3:a:zotregistry:zot:0.3.4
-
cpe:2.3:a:zotregistry:zot:0.3.5
-
cpe:2.3:a:zotregistry:zot:0.3.6
-
cpe:2.3:a:zotregistry:zot:0.3.7
-
cpe:2.3:a:zotregistry:zot:0.3.8
-
cpe:2.3:a:zotregistry:zot:0.3.9
-
cpe:2.3:a:zotregistry:zot:1.0.0
-
cpe:2.3:a:zotregistry:zot:1.0.1
-
cpe:2.3:a:zotregistry:zot:1.1.0
-
cpe:2.3:a:zotregistry:zot:1.1.1
-
cpe:2.3:a:zotregistry:zot:1.1.10
-
cpe:2.3:a:zotregistry:zot:1.1.11
-
cpe:2.3:a:zotregistry:zot:1.1.12
-
cpe:2.3:a:zotregistry:zot:1.1.13
-
cpe:2.3:a:zotregistry:zot:1.1.14
-
cpe:2.3:a:zotregistry:zot:1.1.2
-
cpe:2.3:a:zotregistry:zot:1.1.3
-
cpe:2.3:a:zotregistry:zot:1.1.4
-
cpe:2.3:a:zotregistry:zot:1.1.5
-
cpe:2.3:a:zotregistry:zot:1.1.6
-
cpe:2.3:a:zotregistry:zot:1.1.7
-
cpe:2.3:a:zotregistry:zot:1.1.8
-
cpe:2.3:a:zotregistry:zot:1.1.9
-
cpe:2.3:a:zotregistry:zot:1.2.0
-
cpe:2.3:a:zotregistry:zot:1.2.1
-
cpe:2.3:a:zotregistry:zot:1.2.2
-
cpe:2.3:a:zotregistry:zot:1.2.3
-
cpe:2.3:a:zotregistry:zot:1.2.4
-
cpe:2.3:a:zotregistry:zot:1.2.5
-
cpe:2.3:a:zotregistry:zot:1.2.6
-
cpe:2.3:a:zotregistry:zot:1.2.7
-
cpe:2.3:a:zotregistry:zot:1.2.8
-
cpe:2.3:a:zotregistry:zot:1.3.0
-
cpe:2.3:a:zotregistry:zot:1.3.1
-
cpe:2.3:a:zotregistry:zot:1.3.2
-
cpe:2.3:a:zotregistry:zot:1.3.3
-
cpe:2.3:a:zotregistry:zot:1.3.4
-
cpe:2.3:a:zotregistry:zot:1.3.5
-
cpe:2.3:a:zotregistry:zot:1.3.6
-
cpe:2.3:a:zotregistry:zot:1.3.7
-
cpe:2.3:a:zotregistry:zot:1.3.8
-
cpe:2.3:a:zotregistry:zot:1.3.9
-
cpe:2.3:a:zotregistry:zot:1.4.0
-
cpe:2.3:a:zotregistry:zot:1.4.1
-
cpe:2.3:a:zotregistry:zot:1.4.2
-
cpe:2.3:a:zotregistry:zot:1.4.3
-
cpe:2.3:a:zotregistry:zot:2.0.0
-
cpe:2.3:a:zotregistry:zot:2.0.1
-
cpe:2.3:a:zotregistry:zot:2.0.2
-
cpe:2.3:a:zotregistry:zot:2.0.3
-
cpe:2.3:a:zotregistry:zot:2.0.4