Apache Druid 0.17.0 LDAP Authentication information disclosure

Summaryinfo

A vulnerability classified as critical has been found in Apache Druid 0.17.0. Affected by this vulnerability is an unknown functionality of the component LDAP Authentication. The manipulation leads to information disclosure. This vulnerability is traded as CVE-2020-1958. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apache Druid 0.17.0. This issue affects some unknown processing of the component LDAP Authentication. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

When LDAP authentication is enabled in Apache Druid 0.17.0, callers of Druid APIs with a valid set of LDAP credentials can bypass the credentialsValidator.userSearch filter barrier that determines if a valid LDAP user is allowed to authenticate with Druid. They are still subject to role-based authorization checks, if configured. Callers of Druid APIs can also retrieve any LDAP attribute values of users that exist on the LDAP server, so long as that information is visible to the Druid server. This information disclosure does not require the caller itself to be a valid LDAP user.

The weakness was shared 04/01/2020 (Website). The advisory is shared at lists.apache.org. The identification of this vulnerability is CVE-2020-1958 since 12/02/2019. The attack may be initiated remotely. Required for exploitation is a simple authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/02/2020). MITRE ATT&CK project uses the attack technique T1592 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Apache

Name

• Druid

Version

• 0.17.0

License

• open-source

Website

• Vendor: https://www.apache.org/

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