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Security Advisories: GSA_kwCzR0hTQS1wcWo3LWp4MjQtd2o3d84AAzSa

VTAdmin users that can create shards can deny access to other functions

Impact

Users can either intentionally or inadvertently create a shard containing / characters from VTAdmin such that from that point on, anyone who tries to create a new shard from VTAdmin will receive an error.
Attempting to view the keyspace(s) will also no longer work.
Creating a shard using vtctldclient does not have the same problem because the CLI validates the input correctly.

Patches

v16.0.2, corresponding to 0.16.2 on pkg.go.dev

Workarounds

Always use vtctldclient to create shards, instead of using VTAdmin
Disable creating shards from VTAdmin using RBAC
Delete the topology record for the offending shard using the client for your topology server. For example, if you created a shard called a/b in keyspace commerce, and you are running etcd, it can be deleted by doing something like

% etcdctl --endpoints "http://${ETCD_SERVER}" del /vitess/global/keyspaces/commerce/shards/a/b/Shard

References

https://github.com/vitessio/vitess/issues/12842

Found during a security audit sponsored by the CNCF and facilitated by OSTIF.

Permalink: https://github.com/advisories/GHSA-pqj7-jx24-wj7w
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1wcWo3LWp4MjQtd2o3d84AAzSa
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: 12 months ago
Updated: 6 months ago

CVSS Score: 4.1
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L

Identifiers: GHSA-pqj7-jx24-wj7w, CVE-2023-29195
References:

Repository: https://github.com/vitessio/vitess
Blast Radius: 9.7

Affected Packages

go:vitess.io/vitess

Dependent packages: 203
Dependent repositories: 235
Downloads:
Affected Version Ranges: < 0.16.2
Fixed in: 0.16.2
All affected versions: 0.7.0, 0.8.0, 0.9.0, 0.9.1, 0.9.2, 0.10.0, 0.10.1, 0.10.2, 0.10.3, 0.10.4, 0.10.5, 0.11.0, 0.11.1, 0.11.2, 0.11.3, 0.11.4, 0.12.0, 0.12.1, 0.12.2, 0.12.3, 0.12.4, 0.12.5, 0.12.6, 0.13.0, 0.13.1, 0.13.2, 0.13.3, 0.14.0, 0.14.1, 0.14.2, 0.14.4, 0.14.5, 0.15.0, 0.15.1, 0.15.2, 0.15.3, 0.15.4, 0.15.5, 0.16.0, 0.16.1
All unaffected versions: 0.16.2, 0.16.3, 0.16.4, 0.16.5, 0.16.6, 0.16.7, 0.17.0, 0.17.1, 0.17.2, 0.17.3, 0.17.4, 0.17.5, 0.17.6, 0.18.0, 0.18.1, 0.18.2, 0.18.3, 0.18.4, 0.19.0, 0.19.1, 0.19.2, 0.19.3, 2.0.0, 2.1.0, 2.1.1