National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-8010 Detail

Current Description

This vulnerability in Apache Solr 6.0.0 to 6.6.3, 7.0.0 to 7.3.0 relates to an XML external entity expansion (XXE) in Solr config files (solrconfig.xml, schema.xml, managed-schema). In addition, Xinclude functionality provided in these config files is also affected in a similar way. The vulnerability can be used as XXE using file/ftp/http protocols in order to read arbitrary local files from the Solr server or the internal network. Users are advised to upgrade to either Solr 6.6.4 or Solr 7.3.1 releases both of which address the vulnerability. Once upgrade is complete, no other steps are required. Those releases only allow external entities and Xincludes that refer to local files / zookeeper resources below the Solr instance directory (using Solr's ResourceLoader); usage of absolute URLs is denied. Keep in mind, that external entities and XInclude are explicitly supported to better structure config files in large installations. Before Solr 6 this was no problem, as config files were not accessible through the APIs.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.5 MEDIUM
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N (V3.0 legend)
Impact Score: 3.6
Exploitability Score: 1.8


Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 2.1 LOW
Vector: (AV:L/AC:L/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 3.9


Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/104239 Third Party Advisory VDB Entry
https://mail-archives.apache.org/mod_mbox/www-announce/201805.mbox/%3C08a801d3f0f9%24df46d300%249dd47900%24%40apache.org%3E Mailing List Mitigation Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Improper Restriction of XML External Entity Reference (CWE-611)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
6.0.0
Up to (including)
6.6.3
 cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
7.0.0
Up to (including)
7.3.0


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-8010
NVD Published Date:
05/21/2018
NVD Last Modified:
06/26/2018