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Remote code execution occurs in Apache Solr

Critical severity GitHub Reviewed Published Oct 17, 2018 to the GitHub Advisory Database • Updated Apr 12, 2024

Package

maven org.apache.solr:solr-core (Maven)

Affected versions

>= 7.0.0, < 7.1.0
>= 6.0.0, < 6.6.2
>= 5.5.0, < 5.5.5

Patched versions

7.1.0
6.6.2
5.5.5

Description

Remote code execution occurs in Apache Solr before versions 5.5.5, 6.6.2 and 7.1.0 by exploiting XXE in conjunction with use of a Config API add-listener command to reach the RunExecutableListener class. Elasticsearch, although it uses Lucene, is NOT vulnerable to this. Note that the XML external entity expansion vulnerability occurs in the XML Query Parser which is available, by default, for any query request with parameters deftype=xmlparser and can be exploited to upload malicious data to the /upload request handler or as Blind XXE using ftp wrapper in order to read arbitrary local files from the Solr server. Note also that the second vulnerability relates to remote code execution using the RunExecutableListener available on all affected versions of Solr

References

Published by the National Vulnerability Database Oct 14, 2017
Published to the GitHub Advisory Database Oct 17, 2018
Reviewed Jun 16, 2020
Last updated Apr 12, 2024

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS score

97.406%
(100th percentile)

Weaknesses

CVE ID

CVE-2017-12629

GHSA ID

GHSA-mh7g-99w9-xpjm

Source code

Credits

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