Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2017-7660

Severity CVSS v4.0:
Pending analysis
Type:
CWE-287 Authentication Issues
Publication date:
07/07/2017
Last modified:
20/04/2025

Description

Apache Solr uses a PKI based mechanism to secure inter-node communication when security is enabled. It is possible to create a specially crafted node name that does not exist as part of the cluster and point it to a malicious node. This can trick the nodes in cluster to believe that the malicious node is a member of the cluster. So, if Solr users have enabled BasicAuth authentication mechanism using the BasicAuthPlugin or if the user has implemented a custom Authentication plugin, which does not implement either "HttpClientInterceptorPlugin" or "HttpClientBuilderPlugin", his/her servers are vulnerable to this attack. Users who only use SSL without basic authentication or those who use Kerberos are not affected.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): None

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:apache:solr:5.3.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:solr:5.3.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:solr:5.3.2:*:*:*:*:*:*:*
cpe:2.3:a:apache:solr:5.4.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:solr:5.4.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:solr:5.5.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:solr:5.5.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:solr:5.5.2:*:*:*:*:*:*:*
cpe:2.3:a:apache:solr:5.5.3:*:*:*:*:*:*:*
cpe:2.3:a:apache:solr:5.5.4:*:*:*:*:*:*:*
cpe:2.3:a:apache:solr:6.0.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:solr:6.0.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:solr:6.1.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:solr:6.2.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:solr:6.2.1:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools