Access Control Bypass Affecting org.apache.zookeeper:zookeeper package, versions [,3.4.14) [3.5.0-alpha, 3.5.5)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    Exploit Maturity
    Proof of concept
    EPSS
    0.09% (38th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-JAVA-ORGAPACHEZOOKEEPER-174781
  • published 23 May 2019
  • disclosed 23 May 2019
  • credit Harrison Neal

How to fix?

Upgrade org.apache.zookeeper:zookeeper to version 3.4.14, 3.5.5 or higher.

Overview

org.apache.zookeeper:zookeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services.

Affected versions of this package are vulnerable to Access Control Bypass. ZooKeeper’s getACL() method doesn’t check any permission when retrieving the ACLs of the requested node and returns all information contained in the ACL Id field as plain text string. If Digest Authentication is in use, the unsalted hash value will be disclosed by the getACL() method for unauthenticated or unprivileged users.

CVSS Scores

version 3.1
Expand this section

Snyk

Recommended
4.3 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    None
  • Availability (A)
    None
Expand this section

NVD

5.9 medium