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[email protected]CVE-2023-44981

HistoryOct 11, 2023 - 12:15 p.m.

CVE-2023-44981

2023-10-1112:15:11

CWE-639

[email protected]

web.nvd.nist.gov

178

apache zookeeper

authorization bypass

user-controlled key

cve-2023-44981

vulnerability

sasl quorum peer authentication

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

9.1 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

72.7%

JSON

Authorization Bypass Through User-Controlled Key vulnerability in Apache ZooKeeper. If SASL Quorum Peer authentication is enabled in ZooKeeper (quorum.auth.enableSasl=true), the authorization is done by verifying that the instance part in SASL authentication ID is listed in zoo.cfg server list. The instance part in SASL auth ID is optional and if it’s missing, like ‘[email protected]’, the authorization check will be skipped. As a result an arbitrary endpoint could join the cluster and begin propagating counterfeit changes to the leader, essentially giving it complete read-write access to the data tree. Quorum Peer authentication is not enabled by default.

Users are recommended to upgrade to version 3.9.1, 3.8.3, 3.7.2, which fixes the issue.

Alternately ensure the ensemble election/quorum communication is protected by a firewall as this will mitigate the issue.

See the documentation for more details on correct cluster administration.

Affected configurations

Vulners

NVD

Node

apachezookeeperRange≤3.9.1

apachezookeeperRange≤3.8.2

apachezookeeperRange≤3.7.1

apachezookeeperRange≤3.7.0

CPENameOperatorVersion
apache:zookeeperapache zookeeperlt3.7.2
apache:zookeeperapache zookeeperlt3.8.3
apache:zookeeperapache zookeepereq3.9.0

CPE	Name	Operator	Version
apache:zookeeper	apache zookeeper	lt	3.7.2
apache:zookeeper	apache zookeeper	lt	3.8.3
apache:zookeeper	apache zookeeper	eq	3.9.0

CNA Affected

[
  {
    "collectionURL": "https://repo.maven.apache.org/maven2",
    "defaultStatus": "unaffected",
    "packageName": "org.apache.zookeeper:zookeeper",
    "product": "Apache ZooKeeper",
    "vendor": "Apache Software Foundation",
    "versions": [
      {
        "lessThan": "3.9.1",
        "status": "affected",
        "version": "3.9.0",
        "versionType": "maven"
      },
      {
        "lessThanOrEqual": "3.8.2",
        "status": "affected",
        "version": "3.8.0",
        "versionType": "maven"
      },
      {
        "lessThanOrEqual": "3.7.1",
        "status": "affected",
        "version": "3.7.0",
        "versionType": "maven"
      },
      {
        "lessThan": "3.7.0",
        "status": "affected",
        "version": "0",
        "versionType": "maven"
      }
    ]
  }
]