gsd-2021-27905
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
The ReplicationHandler (normally registered at "/replication" under a Solr core) in Apache Solr has a "masterUrl" (also "leaderUrl" alias) parameter that is used to designate another ReplicationHandler on another Solr core to replicate index data into the local core. To prevent a SSRF vulnerability, Solr ought to check these parameters against a similar configuration it uses for the "shards" parameter. Prior to this bug getting fixed, it did not. This problem affects essentially all Solr versions prior to it getting fixed in 8.8.2.
Aliases
Aliases
CVE-2021-27905


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-27905",
    "description": "The ReplicationHandler (normally registered at \"/replication\" under a Solr core) in Apache Solr has a \"masterUrl\" (also \"leaderUrl\" alias) parameter that is used to designate another ReplicationHandler on another Solr core to replicate index data into the local core. To prevent a SSRF vulnerability, Solr ought to check these parameters against a similar configuration it uses for the \"shards\" parameter. Prior to this bug getting fixed, it did not. This problem affects essentially all Solr versions prior to it getting fixed in 8.8.2.",
    "id": "GSD-2021-27905",
    "references": [
      "https://security.archlinux.org/CVE-2021-27905"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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      "id": "GSD-2021-27905",
      "modified": "2023-12-13T01:23:35.501181Z",
      "schema_version": "1.4.0"
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      "credit": [
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      "source": {
        "defect": [
          "SOLR-15217"
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        "discovery": "UNKNOWN"
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        {
          "lang": "eng",
          "value": "Ensure that any access to the replication handler is purely internal to Solr.  Typically, it\u0027s only accessed externally for diagnostic/informational purposes."
        }
      ]
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          "description": "The `ReplicationHandler` (normally registered at `/replication` under a Solr core) in Apache Solr has a `masterUrl` (also `leaderUrl` alias) parameter that is used to designate another `ReplicationHandler` on another Solr core to replicate index data into the local core. To prevent a SSRF vulnerability, Solr ought to check these parameters against a similar configuration it uses for the `shards` parameter.",
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      "impact": {
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          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 7.5,
            "confidentialityImpact": "PARTIAL",
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            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
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          "exploitabilityScore": 10.0,
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          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
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          "userInteractionRequired": false
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        "baseMetricV3": {
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
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          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2021-09-16T13:19Z",
      "publishedDate": "2021-04-13T07:15Z"
    }
  }
}


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