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CVE Record

CVE-2018-1308: This vulnerability in Apache Solr 1.2 to 6.6.2 and 7.0.0 to 7.2.1 relates to an XML external entity expansi...

This vulnerability in Apache Solr 1.2 to 6.6.2 and 7.0.0 to 7.2.1 relates to an XML external entity expansion (XXE) in the `&dataConfig=<inlinexml>` parameter of Solr's DataImportHandler. It 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.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2018-1308 is an Apache Solr flaw that can let an attacker abuse XML handling in DataImportHandler to read files from the Solr server or reach internal network resources. The concern is data exposure from search infrastructure, especially where Solr is reachable by untrusted users.

Executive priority

Treat this as a high-priority data exposure issue for any affected Solr reachable by users or internal applications. Prioritize internet-facing Solr first, then internal systems with sensitive files or network reach.

Technical view

Apache Solr versions 1.2 through 6.6.2 and 7.0.0 through 7.2.1 are affected by an XXE issue in the DataImportHandler dataConfig inline XML parameter. The CVE description says file, FTP, and HTTP protocols can be abused to read local files or internal network resources.

Likely exposure

Exposure is most likely where affected Solr versions run DataImportHandler and allow untrusted access to request parameters. Internet-facing or broadly reachable Solr admin/API endpoints increase business risk.

Exploitation context

The source bundle does not identify active exploitation and KEV is false. Public advisories describe the vulnerability class and impact, but this analysis does not rely on exploit availability.

Researcher notes

Evidence is clear on affected ranges, component, and impact, but the supplied bundle does not provide CVSS, CWE, exact fixed versions, or confirmed exploitation. Avoid assuming more than XXE-based file and internal resource access through the described DataImportHandler parameter.

Mitigation direction

  • Inventory Solr deployments and identify affected versions listed in the CVE.
  • Apply Apache or distribution security updates for CVE-2018-1308.
  • Restrict Solr access to trusted networks and authenticated administrators.
  • Disable or tightly limit DataImportHandler if it is not required.
  • Check vendor guidance before choosing exact fixed package versions.

Validation and detection

  • Confirm Solr versions are not in the affected ranges.
  • Verify DataImportHandler is disabled or restricted where unnecessary.
  • Review network exposure for Solr admin and API endpoints.
  • Check logs for unusual DataImportHandler requests referencing inline XML.
  • Validate vendor or Debian security updates were applied successfully.
Prepared
Confidence
high
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2018-1308 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
6Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Apache Software FoundationApache Solr1.2 to 6.6.2, 7.0.0 to 7.2.1Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.