CVE-2021-29262: Solr core Improper Permission Handling Vulnerability
HIGHCVE-2021-29262 is a HIGH (CVSS 7.5) improper permission handling vulnerability (CWE-279: Incorrect Execution-Assigned Permissions) affecting Solr core libraries in the Maven ecosystem. The issue involves improper permission handling in apache solr. Remediation is available by upgrading affected packages to version 8.8.2.
CVE-2021-29262 at a Glance
Security Impact
CVSS: 7.5
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
How to Fix CVE-2021-29262
To remediate this vulnerability, upgrade all affected Solr core dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
<dependency>
<groupId>org.apache.solr</groupId>
<artifactId>solr-core</artifactId>
<version>8.8.2</version>
</dependency>Run the following command in your project directory to verify that all resolved dependencies use the patched release:
mvn dependency:tree -Dincludes=org.apache.solrHow to Check if You Are Affected
To determine whether your Java application is affected by CVE-2021-29262, inspect your build dependencies using the Maven Dependency Plugin:
mvn dependency:tree -Dincludes=org.apache.solrAnalyze the terminal output to locate any version of Solr core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 8.8.2), your application is affected.
Note: The mvn dependency:tree -Dincludes=org.apache.solr command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-279: Incorrect Execution-Assigned Permissions, where while it is executing, the product sets the permissions of an object in a way that violates the intended permissions that have been specified by the user. In Solr core, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2021-29262 Affected Solr core Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
org.apache.solr:solr-core
|
Maven |
< 8.8.2
|
8.8.2
|
References
Frequently Asked Questions
What is CVE-2021-29262?
Which Solr core versions are affected?
What version fixes CVE-2021-29262?
Is solr-core affected?
What is the CVSS score of CVE-2021-29262?
What CWE is associated with CVE-2021-29262?
How can I check Maven dependencies for CVE-2021-29262?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-jgcr-fg3g-qvw8",
"modified" : "2021-05-07T16:46:48Z",
"published" : "2021-05-10T15:18:17Z",
"aliases" : [ "CVE-2021-29262" ],
"summary" : "Improper permission handling in Apache Solr",
"details" : "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.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Maven",
"name" : "org.apache.solr:solr-core"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "8.8.2"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-29262"
}, {
"type" : "WEB",
"url" : "https://issues.apache.org/jira/browse/SOLR-15249"
}, {
"type" : "WEB",
"url" : "https://lists.apache.org/thread.html/r1171f6417eeb6d5e1206d53e2b2ff2d6ee14026f8b595ef7d8a33b79@%3Coak-issues.jackrabbit.apache.org%3E"
}, {
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}, {
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}, {
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}, {
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}, {
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}, {
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}, {
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}, {
"type" : "WEB",
"url" : "https://security.netapp.com/advisory/ntap-20210604-0009"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-279", "CWE-522" ],
"severity" : "HIGH",
"github_reviewed" : true,
"github_reviewed_at" : "2021-05-07T16:46:48Z",
"nvd_published_at" : "2021-04-13T07:15:00Z"
}
}