Apache Impala up to 2.9.x Kudu Table access control

Summaryinfo

A vulnerability was found in Apache Impala up to 2.9.x. It has been rated as critical. This vulnerability affects unknown code of the component Kudu Table Handler. The manipulation leads to access control. This vulnerability is traded as CVE-2017-9792. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Apache Impala up to 2.9.x and classified as critical. This issue affects an unknown function of the component Kudu Table Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In Apache Impala (incubating) before 2.10.0, a malicious user with "ALTER" permissions on an Impala table can access any other Kudu table data by altering the table properties to make it "external" and then changing the underlying table mapping to point to other Kudu tables. This violates and works around the authorization requirement that creating a Kudu external table via Impala requires an "ALL" privilege at the server scope. This privilege requirement for "CREATE" commands is enforced to precisely avoid this scenario where a malicious user can change the underlying Kudu table mapping. The fix is to enforce the same privilege requirement for "ALTER" commands that would make existing non-external Kudu tables external.

The bug was discovered 09/29/2017. The weakness was shared 10/04/2017 by Matt (Website). The advisory is shared at lists.apache.org. The identification of this vulnerability is CVE-2017-9792 since 06/21/2017. The attack may be initiated remotely. The successful exploitation requires a simple authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version 2.10.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 101173†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• Apache

Name

• Impala

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9

License

• open-source

Website

• Vendor: https://www.apache.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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