Misapplied Zookeeper ACLs can result in leakage of configured authentication and authorization settings
CVE-2021-29262

7.5HIGH

Key Information:

Vendor

Apache
Status
Apache Solr
Vendor
CVE Published:
13 April 2021

What is CVE-2021-29262?

When starting Apache Solr versions prior to 8.8.2, configured with the SaslZkACLProvider or VMParamsAllAndReadonlyDigestZkACLProvider and no existing security.json znode, if the optional read-only user is configured then Solr would not treat that node as a sensitive path and would allow it to be readable. Additionally, with any ZkACLProvider, if the security.json is already present, Solr will not automatically update the ACLs.

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Affected Version(s)

Apache Solr Apache Solr < 8.8.2

References

https://lists.apache.org/thread.html/r536da4c4e4e406f7843...
x_refsource_MISC
https://security.netapp.com/advisory/ntap-20210604-0009/
x_refsource_CONFIRM
https://lists.apache.org/thread.html/r51b29ff62060b67bc99...
mailing-listx_refsource_MLIST

EPSS Score

26% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Timothy Potter and Mike Drob, Apple Cloud Services
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