{"schemaVersion":3,"id":"CVE-2020-9480","aliases":["GHSA-wgx7-jwwm-cgjv","BIT-spark-2020-9480","PYSEC-2020-95"],"status":"published","duplicateOf":null,"title":null,"description":"In Apache Spark 2.4.5 and earlier, a standalone resource manager's master may be configured to require authentication (spark.authenticate) via a shared secret. When enabled, however, a specially-crafted RPC to the master can succeed in starting an application's resources on the Spark cluster, even without the shared key. This can be leveraged to execute shell commands on the host machine. This does not affect Spark clusters using other resource managers (YARN, Mesos, etc).","dates":{"published":"2020-06-23T21:50:51.000Z","modified":"2024-08-04T10:26:16.324Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"OSV · Pypi","score":9.3,"severity":"critical","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Pypi","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":10,"impact":9.8,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Maven","score":9.3,"severity":"critical","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Maven","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":10,"impact":9.8,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":9.3,"severity":"high","vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.2937,"percentile":0.98168,"severity":"high","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.2937},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.2937,"percentile":0.98168}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.2937,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.2937,"percentile":0.98168}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-306","name":"Missing Authentication for Critical Function","description":"The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/306.html"}],"affected":[{"vendor":"apache software foundation","product":"apache spark","name":"Apache Spark","label":"apache spark","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"Apache Spark 2.4.5 and earlier","noFixRecorded":false,"fixedIn":null}],"versionsText":"Apache Spark 2.4.5 and earlier","eol":null,"hubHref":"/vendor/apache_software_foundation/apache_spark"},{"vendor":"apache","product":"spark","name":"Spark","label":"spark","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 2.4.5","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 2.4.5","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"apache-spark","label":"Apache Spark","category":"server-app"}},"hubHref":"/vendor/apache/spark"},{"vendor":"org.apache.spark","product":"spark-parent_2.11","name":"org.apache.spark:spark-parent_2.11","label":"spark-parent_2.11","ecosystem":"Maven","cpePart":null,"purl":"pkg:maven/org.apache.spark/spark-parent_2.11","purlType":"maven","versions":[{"text":"< 2.4.6","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.4.6","eol":null,"hubHref":null},{"vendor":"oracle","product":"business_intelligence","name":"business intelligence","label":"business_intelligence","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"5.5.0.0.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"5.5.0.0.0","eol":null,"hubHref":"/vendor/oracle/business_intelligence"},{"vendor":"PyPI","product":"pyspark","name":"pyspark","label":"pyspark","ecosystem":"PyPI","cpePart":null,"purl":"pkg:pypi/pyspark","purlType":"pypi","versions":[{"text":"< 2.4.6","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.4.6","eol":null,"hubHref":null}],"affectedCount":5,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://spark.apache.org/security.html#CVE-2020-9480","label":"spark.apache.org/security.html","hostname":"spark.apache.org","tags":["X Refsource CONFIRM","WEB","Vendor Advisory"]},{"url":"https://lists.apache.org/thread.html/r03ad9fe7c07d6039fba9f2152d345274473cb0af3d8a4794a6645f4b%40%3Cuser.spark.apache.org%3E","label":"lists.apache.org/thread.html/…","hostname":"lists.apache.org","tags":["Mailing List","X Refsource MLIST"]},{"url":"https://lists.apache.org/thread.html/ree9e87aae81852330290a478692e36ea6db47a52a694545c7d66e3e2%40%3Cdev.spark.apache.org%3E","label":"lists.apache.org/thread.html/…","hostname":"lists.apache.org","tags":["Mailing List","X Refsource MLIST"]},{"url":"https://lists.apache.org/thread.html/rb3956440747e41940d552d377d50b144b60085e7ff727adb0e575d8d%40%3Ccommits.submarine.apache.org%3E","label":"lists.apache.org/thread.html/…","hostname":"lists.apache.org","tags":["Mailing List","X Refsource MLIST"]},{"url":"https://lists.apache.org/thread.html/ra0e62a18ad080c4ce6df5e0202a27eaada75222761efc3f7238b5a3b%40%3Ccommits.doris.apache.org%3E","label":"lists.apache.org/thread.html/…","hostname":"lists.apache.org","tags":["Mailing List","X Refsource MLIST"]},{"url":"https://www.oracle.com/security-alerts/cpuApr2021.html","label":"www.oracle.com/security-alerts/cpuApr2021.html","hostname":"www.oracle.com","tags":["X Refsource MISC","WEB","Patch","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-9480","label":"nvd.nist.gov/vuln/detail/CVE-2020-9480","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/pyspark/PYSEC-2020-95.yaml","label":"github.com/pypa/advisory-database/tree/main/vulns/pyspark/PYSEC-2020-95.yaml","hostname":"github.com","tags":["WEB"]},{"url":"https://lists.apache.org/thread.html/r03ad9fe7c07d6039fba9f2152d345274473cb0af3d8a4794a6645f4b@%3Cuser.spark.apache.org%3E","label":"lists.apache.org/thread.html/…","hostname":"lists.apache.org","tags":["WEB"]},{"url":"https://lists.apache.org/thread.html/ra0e62a18ad080c4ce6df5e0202a27eaada75222761efc3f7238b5a3b@%3Ccommits.doris.apache.org%3E","label":"lists.apache.org/thread.html/…","hostname":"lists.apache.org","tags":["WEB"]},{"url":"https://lists.apache.org/thread.html/rb3956440747e41940d552d377d50b144b60085e7ff727adb0e575d8d@%3Ccommits.submarine.apache.org%3E","label":"lists.apache.org/thread.html/…","hostname":"lists.apache.org","tags":["WEB"]},{"url":"https://lists.apache.org/thread.html/ree9e87aae81852330290a478692e36ea6db47a52a694545c7d66e3e2@%3Cdev.spark.apache.org%3E","label":"lists.apache.org/thread.html/…","hostname":"lists.apache.org","tags":["WEB"]},{"url":"https://github.com/advisories/GHSA-wgx7-jwwm-cgjv","label":"github.com/advisories/GHSA-wgx7-jwwm-cgjv","hostname":"github.com","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2020-06-23T21:50:51.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-04T10:26:16.324Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T04:55:54.393Z","stale":false,"partial":false}}