Apache Zookeeper up to 3.4.13/3.5.0-alpha to 3.5.4-beta getACL Hash permission

Summaryinfo

A vulnerability categorized as problematic has been discovered in Apache Zookeeper up to 3.4.13/3.5.0-alpha to 3.5.4-beta. This vulnerability affects the function getACL. The manipulation results in permission (Hash). This vulnerability is reported as CVE-2019-0201. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Apache Zookeeper up to 3.4.13/3.5.0-alpha to 3.5.4-beta. It has been classified as problematic. Affected is the function getACL. The manipulation with an unknown input leads to a permission vulnerability (Hash). CWE is classifying the issue as CWE-275. This is going to have an impact on confidentiality. CVE summarizes:

An issue is present in Apache ZooKeeper 1.0.0 to 3.4.13 and 3.5.0-alpha to 3.5.4-beta. ZooKeeper?s getACL() command doesn?t check any permission when retrieves the ACLs of the requested node and returns all information contained in the ACL Id field as plaintext string. DigestAuthenticationProvider overloads the Id field with the hash value that is used for user authentication. As a consequence, if Digest Authentication is in use, the unsalted hash value will be disclosed by getACL() request for unauthenticated or unprivileged users.

The bug was discovered 05/20/2019. The weakness was disclosed 05/23/2019 (Website). The advisory is available at zookeeper.apache.org. This vulnerability is traded as CVE-2019-0201 since 11/14/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 01/11/2026). This vulnerability is assigned to T1222 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176944 (Debian Security Update for zookeeper (DLA 1801-1)).

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

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2022-0770). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

• IBM DB2
• Red Hat Enterprise Linux
• IBM SPSS
• EMC Avamar
• Hitachi Ops Center

Productinfo

Vendor

• Apache

Name

• Zookeeper

Version

• 3.4.0
• 3.4.1
• 3.4.2
• 3.4.3
• 3.4.4
• 3.4.5
• 3.4.6
• 3.4.7
• 3.4.8
• 3.4.9
• 3.4.10
• 3.4.11
• 3.4.12
• 3.4.13
• 3.5.0-alpha to 3.5.4-beta

License

• open-source

Website

• Vendor: https://www.apache.org/

CPE 2.3info

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CPE 2.2info

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Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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