solr: Insufficient authentization for inter-node communication
Published Jul 7, 2017
7.5
HIGHCVSS 3.0
EPSS 5.63%
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.
Affected products
-
- Version 5.3 to 5.5.4StatusaffectedConstraints-
- Version 6.0 to 6.5.1StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Apache Software Foundation | Apache Solr | n/a |
|
- 5.3.0
- 5.3.1
- 5.3.2
- 5.4.0
- 5.4.1
- 5.5.0
- 5.5.1
- 5.5.2
- 5.5.3
- 5.5.4
- 6.0.0
- 6.0.1
- 6.1.0
- 6.2.0
- 6.2.1
- 6.3.0
- 6.4.0
- 6.4.1
- 6.4.2
- 6.5.0
- 6.5.1
No data.
Red Hat JBoss Data Grid 6
solr-core
Not affected
Red Hat JBoss Data Virtualization 6
solr-core
Not affected
Red Hat JBoss Enterprise Application Platform 6
solr-core
Not affected
Red Hat JBoss Fuse 6
camel
Not affected
Red Hat JBoss Fuse Service Works 6
solr-core
Will not fix
Red Hat JBoss Portal 6
solr-core
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat JBoss Data Grid 6 | solr-core | Not affected | n/a |
| Red Hat JBoss Data Virtualization 6 | solr-core | Not affected | n/a |
| Red Hat JBoss Enterprise Application Platform 6 | solr-core | Not affected | n/a |
| Red Hat JBoss Fuse 6 | camel | Not affected | n/a |
| Red Hat JBoss Fuse Service Works 6 | solr-core | Will not fix | n/a |
| Red Hat JBoss Portal 6 | solr-core | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
AV:N/AC:L/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.63% (0.05632) | 92.71th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.53% (0.05526) | 91.78th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.26% (0.01265) | 77.60th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.33% (0.04326) | 81.16th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.26% (0.01265) | 78.07th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.28% (0.00283) | 69.45th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.28% (0.00283) | 67.71th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.28% (0.00283) | 63.58th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Sep 2, 2022 | 0.95% (0.00954) | 34.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.46% (0.02463) | 54.82th | v1 |
| Jan 6, 2022 | 2.46% (0.02463) | 54.38th | v1 |
| Sep 1, 2021 | 2.46% (0.02463) | 78.49th | v1 |
| Apr 14, 2021 | 2.46% (0.02463) | 0.00th | v1 |
References (10)
- http://mail-archives.us.apache.org/mod_mbox/www-announce/201707.mbox/%3CCAOOKt53EgrybaD%2BiSn-nBbvFdse-szhg%3DhMoDZuvUvyMme-Z%3Dg%40mail.gmail.com%3E mailing-listx_refsource_MLISTMailing ListVendor Advisory
- http://www.securityfocus.com/bid/99485 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2017-7660 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1473273 Issue Tracking
- https://github.com/advisories/GHSA-c82r-qg3w-q5mv Advisory
- https://issues.apache.org/jira/browse/SOLR-10624
- https://lists.apache.org/thread/o0g7vpz5sz4yy0pyf1z94vkpv40x6h44
- https://nvd.nist.gov/vuln/detail/CVE-2017-7660
- https://security.netapp.com/advisory/ntap-20181127-0003/ x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2017-7660
| Link | Providers | Tags |
|---|---|---|
| http://mail-archives.us.apache.org/mod_mbox/www-announce/201707.mbox/%3CCAOOKt53EgrybaD%2BiSn-nBbvFdse-szhg%3DhMoDZuvUvyMme-Z%3Dg%40mail.gmail.com%3E | mailing-listx_refsource_MLISTMailing ListVendor Advisory | |
| http://www.securityfocus.com/bid/99485 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2017-7660 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1473273 | Issue Tracking | |
| https://github.com/advisories/GHSA-c82r-qg3w-q5mv | Advisory | |
| https://issues.apache.org/jira/browse/SOLR-10624 | ||
| https://lists.apache.org/thread/o0g7vpz5sz4yy0pyf1z94vkpv40x6h44 | ||
| https://nvd.nist.gov/vuln/detail/CVE-2017-7660 | ||
| https://security.netapp.com/advisory/ntap-20181127-0003/ | x_refsource_CONFIRM | |
| https://www.cve.org/CVERecord?id=CVE-2017-7660 |
Change history (0)
No recorded changes yet.