{"schema":"threatline.record/2","record":{"id":"CVE-2020-28949","aliases":[],"summary":"PEAR Archive_Tar Deserialization of Untrusted Data Vulnerability","details":"PEAR Archive_Tar allows an unserialization attack because phar: is blocked but PHAR: is not blocked. PEAR stands for PHP Extension and Application Repository and it is an open-source framework and distribution system for reusable PHP components with known usage in third-party products such as Drupal Core and Red Hat Linux.","categories":["Unclassified"],"product":"Archive_Tar","vendor":"PEAR","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2020-28949","source_modified_at":"2025-10-21T23:35:32.687Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}],"defaultStatus":null}],"fixed_versions":[],"cvss":7.8,"severity":"High","kev":{"listed":true,"date_added":"2022-08-25","due_date":"2022-09-15","required_action":"Apply updates per vendor instructions.","ransomware_campaign_use":"Unknown"},"epss":{"probability":0.84554,"percentile":0.99705,"score_date":"2026-10-23"},"published_at":"2020-11-19T18:14:18.000Z","modified_at":"2025-10-21T23:35:32.687Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2020-28949","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T23:35:32.687Z"},{"source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/fileformat/archive_tar_arb_file_write.rb","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2020-11-17"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2020-28949","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","Metasploit","EPSS"],"references":[{"url":"https://pear.php.net/bugs/bug.php?id=27002, https://www.drupal.org/sa-core-2020-013, https://access.redhat.com/security/cve/cve-2020-28949","source":"CISA KEV"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-28949","source":"CISA KEV"},{"source":"CVE List","url":"https://github.com/pear/Archive_Tar/issues/33","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://www.drupal.org/sa-core-2020-013","tags":["x_refsource_CONFIRM","x_transferred"]},{"source":"CVE List","url":"https://lists.debian.org/debian-lts-announce/2020/11/msg00045.html","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"source":"CVE List","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4V35LBRM6HBCXBVCITKQ4UEBTXO2EG7B/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"source":"CVE 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List","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VJQQYDAOWHD6RDITDRPHFW7WY6BS3V5N/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"source":"CVE List","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42GPGVVFTLJYAKRI75IVB5R45NYQGEUR/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-28949","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"active","automatable":"no","technical_impact":"total","assessed_at":"2025-02-07T13:49:30.732204Z"},"exploits":[{"source":"Metasploit","kind":"Exploit module","name":"PEAR Archive_Tar 1.4.10 Arbitrary File Write","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/fileformat/archive_tar_arb_file_write.rb","date":"2020-11-17","added":"2022-04-19","check":false}],"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2025-10-21T23:35:32.687Z","content_hash":"fbdc76c76ef879185f0bced0616be1a17ca1828e46eb905f66afd08e406f5291"}}