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CVE Record

CVE-2019-0193: In Apache Solr, the DataImportHandler, an optional but popular module to pull in data from databases and ot...

In Apache Solr, the DataImportHandler, an optional but popular module to pull in data from databases and other sources, has a feature in which the whole DIH configuration can come from a request's "dataConfig" parameter. The debug mode of the DIH admin screen uses this to allow convenient debugging / development of a DIH config. Since a DIH config can contain scripts, this parameter is a security risk. Starting with version 8.2.0 of Solr, use of this parameter requires setting the Java System property "enable.dih.dataConfigParam" to true.

HighCVSS 7.2Known exploitedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Apache Solr installations before 8.2.0 can let a highly privileged user submit a DataImportHandler configuration through a request parameter. Because that configuration can contain scripts, misuse can lead to remote code execution. The module is optional but popular, so exposure depends on whether DataImportHandler is deployed and reachable.

Executive priority

Prioritize remediation for any internet-reachable or broadly reachable Solr administrative deployment. KEV status raises urgency, but practical exposure depends on DataImportHandler use and privileged access paths. Treat this as a high-priority platform hardening and upgrade item, not merely a library cleanup.

Technical view

CVE-2019-0193 affects Apache Solr before 8.2.0. DataImportHandler debug/admin behavior allowed DIH configuration from the dataConfig request parameter. Since DIH configs can contain scripts, this created a CWE-94 code injection risk. CVSS 3.1 is 7.2 with network access, low complexity, high privileges, and high confidentiality, integrity, and availability impact.

Likely exposure

Most likely exposed where Apache Solr before 8.2.0 uses DataImportHandler and privileged Solr administrative access is available over a network. Public exposure is more urgent, but the CVSS vector indicates high privileges are required.

Exploitation context

The supplied bundle marks this CVE as CISA KEV, so known exploitation should be treated as confirmed. The sources do not provide exploit timing, volume, target sectors, or technical exploitation details. Avoid assuming unauthenticated exploitation because the listed CVSS vector requires high privileges.

Researcher notes

Key uncertainty is deployment-specific: DIH is optional, and the CVSS vector requires high privileges. Validate actual DataImportHandler usage, admin endpoint reachability, Solr version, and the 8.2.0 guard property state. Sources identify the risk and fix direction but do not provide safe operational detection logic.

Mitigation direction

  • Upgrade Apache Solr to 8.2.0 or later, or a vendor-supported fixed package.
  • Confirm the DataImportHandler dataConfig request parameter is not enabled unless explicitly required.
  • If using Solr 8.2.0+, keep enable.dih.dataConfigParam unset or false by default.
  • Restrict Solr administrative interfaces to trusted networks and authorized administrators.
  • Review vendor or distribution security guidance for supported backported fixes.

Validation and detection

  • Inventory Apache Solr versions and identify any deployments before 8.2.0.
  • Check whether DataImportHandler is configured or exposed in each Solr deployment.
  • Review JVM/system properties for enable.dih.dataConfigParam on Solr 8.2.0 or later.
  • Validate administrative endpoints require authentication and are not internet-accessible.
  • Check package provenance for Debian or vendor backported security updates.
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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-94: Code execution behavior lookup

Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2019-0193 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.2 (3.1)
Known Exploited
Yes
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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.

1CVSS vectors
0Timeline events
0ADP providers
24Source links

CISA KEV status

Status
Known exploited
Source
CISA / ADP
Date added
Not provided

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.2CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H1.25.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.2High
CVSS 3.1 vector shape for CVE-2019-0193Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
ApacheApache SolrApache Solr all prior to 8.2.0Listed
Weakness

CWE details

CWE-94

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