CVE-2023-449819.1CriticalCWE-639

CVE-2023-44981: Apache ZooKeeper: Authorization bypass in SASL Quorum Peer Authentication

Apache Software Foundation · Apache ZooKeeper

Vendor fix available · Affected: Apache Software Foundation Apache ZooKeeper · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

2.2%probability of exploitation in the next 30 days

82nd percentile

050100

Higher than 82% of scored CVEs

9.1CriticalCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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 'eve@EXAMPLE.COM', 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 products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Apache Software Foundation · Apache ZooKeeperfrom 3.9.0 before 3.9.1; from 3.8.0 up to and including 3.8.2; from 3.7.0 up to and including 3.7.1; before 3.7.0

On the Atlas

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Open the Atlas

Exploitation: Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Insecure Direct Object Reference
Vendor: Apache Software Foundation
Published: October 2023
Band: Possible (1 to 10%), October 2023

CoverageNo articles yet

No CyberSIXT article names CVE-2023-44981 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.