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ApacheCVE-2023-44981

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

CVE-2023-44981

2023-10-1112:15:11

CWE-639

apache

web.nvd.nist.gov

198

apache zookeeper

authorization bypass

user-controlled key

cve-2023-44981

vulnerability

sasl quorum peer authentication

CVSS3

9.1

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

AI Score

9.1

Confidence

High

EPSS

0.004

Percentile

72.6%

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

Nvd

Vulners

Node

apachezookeeperRange<3.7.2

apachezookeeperRange3.8.0–3.8.3

apachezookeeperMatch3.9.0

Node

debiandebian_linuxMatch10.0

debiandebian_linuxMatch11.0

debiandebian_linuxMatch12.0

VendorProductVersionCPE
apachezookeeper*cpe:2.3:a:apache:zookeeper:*:*:*:*:*:*:*:*
apachezookeeper3.9.0cpe:2.3:a:apache:zookeeper:3.9.0:*:*:*:*:*:*:*
debiandebian_linux10.0cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
debiandebian_linux11.0cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
debiandebian_linux12.0cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
apache	zookeeper	*	cpe:2.3:a:apache:zookeeper::::::::
apache	zookeeper	3.9.0	cpe:2.3:a:apache:zookeeper:3.9.0:::::::*
debian	debian_linux	10.0	cpe:2.3:o:debian:debian_linux:10.0:::::::*
debian	debian_linux	11.0	cpe:2.3:o:debian:debian_linux:11.0:::::::*
debian	debian_linux	12.0	cpe:2.3:o:debian:debian_linux:12.0:::::::*

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"
      }
    ]
  }
]