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GHSA-9w9f-6mg8-jp7w
No affected components available
Impact
What kind of vulnerability is it? Who is impacted?
Bleve includes HTTP utilities under bleve/http package, that are used by its sample application. (https://github.com/blevesearch/bleve-explorer) These HTTP methods paves way for exploitation of a node’s filesystem where the bleve index resides, if the user has used bleve’s own HTTP (bleve/http) handlers for exposing the access to the indexes. For instance, the CreateIndexHandler (http/index_create.go) and DeleteIndexHandler (http/index_delete.go) enable an attacker to create a bleve index (directory structure) anywhere where the user running the server has the write permissions and to delete recursively any directory owned by the same user account.
Users who have used the bleve/http package for exposing access to bleve index without the explicit handling for the Role Based Access Controls(RBAC) of the index assets would be impacted.
Patches
Has the problem been patched? What versions should users upgrade to?
No. The http package is purely intended to be used for demonstration purposes. And bleve is never designed to be handling the RBACs or it was ever advertised to be used in that way. Hence the collaborators of this project have decided to stay away from adding any authentication or authorization to bleve project at the moment.
Workarounds
Is there a way for users to fix or remediate the vulnerability without upgrading?
The bleve/http package is mainly for demonstration purposes and it lacks exhaustive validation of the user inputs as well as any authentication and authorization measures. So it is recommended to not use that in production use cases.
For more information
If you have any questions or comments about this advisory:
- Open an issue here.
- Email us at [mailto:security@couchbase.com, fts-team@couchbase.com].
The vulnerability requires local access to the device to be exploited. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the integrity of the data.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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