CVE-2021-44548

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Source

https://cve.org/CVERecord?id=CVE-2021-44548

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-44548.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2021-44548

Aliases

Published

2021-12-23T09:15:06.693Z

Modified

2026-04-11T23:37:25.391541Z

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

[none]

Details

An Improper Input Validation vulnerability in DataImportHandler of Apache Solr allows an attacker to provide a Windows UNC path resulting in an SMB network call being made from the Solr host to another host on the network. If the attacker has wider access to the network, this may lead to SMB attacks, which may result in: * The exfiltration of sensitive data such as OS user hashes (NTLM/LM hashes), * In case of misconfigured systems, SMB Relay Attacks which can lead to user impersonation on SMB Shares or, in a worse-case scenario, Remote Code Execution This issue affects all Apache Solr versions prior to 8.11.1. This issue only affects Windows.

References

Affected packages

Git / github.com/apache/lucene-solr

Affected ranges

Type

GIT

Repo

https://github.com/apache/lucene-solr

Events

Introduced

Fixed

0b002b11819df70783e83ef36b42ed1223c14b50

Database specific

{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "8.11.1"
        }
    ]
}

Affected versions

Other

grafts/lucene-oldest

grafts/lucene-solr-copy

grafts/lucene-solr-oldest-merged

history/branches/lucene-solr/lucene-6997

releases/lucene-solr/8.*

releases/lucene-solr/8.11.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-44548.json"

vanir_signatures_modified

"2026-04-11T23:37:25Z"

vanir_signatures

[
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "74187222409551978809593267953936455840",
                "103474208015486073405673583804841324565",
                "99897997087424153453833095860812152958",
                "95341446736969694160579801479544639727",
                "338067277447972392123299085644459555844",
                "283933212423134330053431824849883678707"
            ]
        },
        "deprecated": false,
        "signature_type": "Line",
        "id": "CVE-2021-44548-f4501f1a",
        "signature_version": "v1",
        "source": "https://github.com/apache/lucene-solr/commit/0b002b11819df70783e83ef36b42ed1223c14b50",
        "target": {
            "file": "solr/core/src/test/org/apache/solr/cloud/autoscaling/ScheduledTriggerIntegrationTest.java"
        }
    }
]