CVE-2021-27905

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Typically, it's only accessed externally for diagnostic/informational purposes."}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@apache.org", "ID": "CVE-2021-27905", "STATE": "PUBLIC", "TITLE": "SSRF vulnerability with the Replication handler"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Apache Solr", "version": {"version_data": [{"version_affected": "<", "version_name": "Apache Solr", "version_value": "8.8.2"}]}}]}, "vendor_name": "Apache Software Foundation"}]}}, "credit": [{"lang": "eng", "value": "Reported by Caolinhong(Skay) from QI-ANXIN Cert (QI-ANXIN Technology Group Inc.)"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "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."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-918 Server-Side Request Forgery (SSRF)"}]}]}, "references": {"reference_data": [{"name": "https://lists.apache.org/thread.html/r0ddc3a82bd7523b1453cb7a5e09eb5559517145425074a42eb326b10%40%3Cannounce.apache.org%3E", "refsource": "MISC", "url": "https://lists.apache.org/thread.html/r0ddc3a82bd7523b1453cb7a5e09eb5559517145425074a42eb326b10%40%3Cannounce.apache.org%3E"}, {"name": "https://security.netapp.com/advisory/ntap-20210611-0009/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20210611-0009/"}, {"name": "[solr-users] 20210618 CVE-2021-27905 Apache Solr ReplicationHandler/SSRF vulnerability", "refsource": "MLIST", "url": "https://lists.apache.org/thread.html/r95df34bb158375948da82b4dfe9a1b5d528572d586584162f8f5aeef@%3Cusers.solr.apache.org%3E"}, {"name": "[solr-users] 20210618 Re: CVE-2021-27905 Apache Solr ReplicationHandler/SSRF vulnerability", "refsource": "MLIST", "url": "https://lists.apache.org/thread.html/r140128dc6bb4f4e0b6a39e962c7ca25a8cbc8e48ed766176c931fccc@%3Cusers.solr.apache.org%3E"}, {"name": "[solr-users] 20210728 Re: CVE-2021-27905 Apache Solr ReplicationHandler/SSRF vulnerability", "refsource": "MLIST", "url": "https://lists.apache.org/thread.html/r3da74965aba2b5f5744b7289ad447306eeb2940c872801819faa9314@%3Cusers.solr.apache.org%3E"}, {"name": "[ofbiz-notifications] 20210914 [jira] [Updated] (OFBIZ-12316) The Solr version included in OFBiz has an SSRF vulnerability (CVE-2021-27905)", "refsource": "MLIST", "url": "https://lists.apache.org/thread.html/rae9ccaecce9859f709ed1458545d90a4c07163070dc98b5e9e59057f@%3Cnotifications.ofbiz.apache.org%3E"}, {"name": "[ofbiz-commits] 20210915 [ofbiz-plugins] branch release18.12 updated: Fixed: The Solr version included in OFBiz has an SSRF vulnerability (CVE-2021-27905) (OFBIZ-12316)", "refsource": "MLIST", "url": "https://lists.apache.org/thread.html/r720a4a0497fc90bad5feec8aa18b777912ee15c7eeb5f882adbf523e@%3Ccommits.ofbiz.apache.org%3E"}, {"name": "[ofbiz-notifications] 20210915 [jira] [Commented] (OFBIZ-12316) The Solr version included in OFBiz has an SSRF vulnerability (CVE-2021-27905)", "refsource": "MLIST", "url": "https://lists.apache.org/thread.html/re9d64bb8e5dfefddcbf255adb4559e13a0df5b818da1b9b51329723f@%3Cnotifications.ofbiz.apache.org%3E"}, {"name": "[ofbiz-notifications] 20210915 [jira] [Closed] (OFBIZ-12316) The Solr version included in OFBiz has an SSRF vulnerability (CVE-2021-27905)", "refsource": "MLIST", "url": "https://lists.apache.org/thread.html/rd232d77c57a8ce172359ab098df9512d8b37373ab87c444be911b430@%3Cnotifications.ofbiz.apache.org%3E"}, {"name": "[ofbiz-commits] 20210915 [ofbiz-plugins] branch trunk updated: Fixed: The Solr version included in OFBiz has an SSRF vulnerability (CVE-2021-27905) (OFBIZ-12316)", "refsource": "MLIST", "url": "https://lists.apache.org/thread.html/r78a3a4f1138a1608b0c6d4a2ee7647848c1a20b0d5c652cd9b02c25a@%3Ccommits.ofbiz.apache.org%3E"}, {"name": "[ofbiz-commits] 20210915 [ofbiz-plugins] branch release17.12 updated: Fixed: The Solr version included in OFBiz has an SSRF vulnerability (CVE-2021-27905) (OFBIZ-12316)", "refsource": "MLIST", "url": "https://lists.apache.org/thread.html/r6ccec7fc54d82591b23c143f1f6a6e38f6e03e75db70870e4cb14a1a@%3Ccommits.ofbiz.apache.org%3E"}, {"name": "[ofbiz-notifications] 20210915 [jira] [Updated] (OFBIZ-12316) The Solr version included in OFBiz has an SSRF vulnerability (CVE-2021-27905)", "refsource": "MLIST", "url": "https://lists.apache.org/thread.html/r8f1152a43c36d878bbeb5a92f261e9efaf3af313b033d7acfccea59d@%3Cnotifications.ofbiz.apache.org%3E"}]}, "source": {"defect": ["SOLR-15217"], "discovery": "UNKNOWN"}, "work_around": [{"lang": "en", "value": "Ensure that any access to the replication handler is purely internal to Solr. 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{}

{"affected": [{"affectedData": [{"product": "Apache Solr", "vendor": "Apache Software Foundation", "versions": [{"lessThan": "8.8.2", "status": "affected", "version": "Apache Solr", "versionType": "custom"}]}], "source": "security@apache.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:*", "matchCriteriaId": "B8DCA294-D45F-4B22-8183-301F60BC4393", "versionEndExcluding": "8.8.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "La funci\u00f3n ReplicationHandler (normalmente registrado en \"/replication\" bajo un core Solr) en Apache Solr presenta un par\u00e1metro \"masterUrl\" (tambi\u00e9n se conoce como \"leaderUrl\") que es usada para designar otro ReplicationHandler en otro core Solr para replicar datos de \u00edndice en el core local .&#xa0;Para impedir una vulnerabilidad de SSRF, Solr deber\u00eda comparar estos par\u00e1metros con una configuraci\u00f3n similar que usa para el par\u00e1metro \"shards\".&#xa0;Antes de que fuera corregido este bug, no era as\u00ed.&#xa0;Este problema afecta esencialmente a todas las versiones de Solr anteriores a que fuese corregido en la versi\u00f3n 8.8.2"}], "id": "CVE-2021-27905", "lastModified": "2026-06-17T03:45:35.170", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "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"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-04-13T07:15:12.137", "references": [{"source": 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{"bugzilla": {"description": "solr: SSRF vulnerability with the Replication handler", "id": "1949516", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1949516"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-918", "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.", "A flaw was found in solr. The ReplicationHandler in Apache Solr does not check proper parameters when connecting to another Solr instance to replicate index data into the local core leading to a SSRF vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability."], "mitigation": {"lang": "en:us", "value": "Restrict access to the replication handler to only internal Solr instances."}, "name": "CVE-2021-27905", "package_state": [{"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Not affected", "impact": "moderate", "package_name": "solr", "product_name": "Red Hat Fuse 7"}, {"cpe": "cpe:/a:redhat:integration:1", "fix_state": "Not affected", "impact": "moderate", "package_name": "camel-solr", "product_name": "Red Hat Integration Camel K 1"}, {"cpe": "cpe:/a:redhat:jboss_data_virtualization:6", "fix_state": "Out of support scope", "package_name": "solr", "product_name": "Red Hat JBoss Data Virtualization 6"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:6", "fix_state": "Out of support scope", "package_name": "solr", "product_name": "Red Hat JBoss Enterprise Application Platform 6"}, {"cpe": "cpe:/a:redhat:jboss_fuse:6", "fix_state": "Out of support scope", "package_name": "solr", "product_name": "Red Hat JBoss Fuse 6"}, {"cpe": "cpe:/a:redhat:jboss_fuse_service_works:6", "fix_state": "Out of support scope", "package_name": "solr", "product_name": "Red Hat JBoss Fuse Service Works 6"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_web_server:3", "fix_state": "Not affected", "package_name": "solr", "product_name": "Red Hat JBoss Web Server 3"}], "public_date": "2021-04-12T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-27905\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-27905"], "threat_severity": "Important"}

{}