{"id":"CVE-2012-4449","aliases":["EUVD-2022-4876","GHSA-q46v-cj5v-hvg6"],"status":"published","title":"Use of a Broken or Risky Cryptographic Algorithm in Apache Hadoop","description":"Apache Hadoop before 0.23.4, 1.x before 1.0.4, and 2.x before 2.0.2 generate token passwords using a 20-bit secret when Kerberos security features are enabled, which makes it easier for context-dependent attackers to crack secret keys via a brute-force attack.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01191,"percentile":0.68171,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-327"],"published":"2017-10-30T19:00:00Z","modified":"2026-06-16T23:45:07Z","fixes":[{"ecosystem":"Maven","package":"org.apache.hadoop:hadoop-client","fixed_in":["0.23.4","1.0.4","2.0.2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.apache.hadoop:hadoop-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.23.4"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.apache.hadoop:hadoop-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.0"},{"fixed":"1.0.4"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.apache.hadoop:hadoop-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.0.2"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.apache.hadoop:hadoop-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.23.4"}]}],"versions":["0.23.1","0.23.3"]},{"source":"osv","ecosystem":"Maven","package":"org.apache.hadoop:hadoop-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.0"},{"fixed":"1.0.4"}]}],"versions":["1.0.1","1.0.2","1.0.3"]},{"source":"osv","ecosystem":"Maven","package":"org.apache.hadoop:hadoop-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.0.2"}]}],"versions":["2.0.1-alpha","2.0.2-alpha"]}],"products":[{"vendor":"apache","product":"hadoop"}],"references":[{"url":"https://www.cloudera.com/documentation/other/security-bulletins/topics/csb_topic_1.html#topic_1_0","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Third Party Advisory","web"]},{"url":"http://mail-archives.apache.org/mod_mbox/hadoop-general/201210.mbox/%3CCA+z3+9FYdPmzBEaMZ71SUqzRx=eU=o4mSHUsbrpzgR9X_F1c0Q%40mail.gmail.com%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-4449","tags":["advisory"]},{"url":"http://mail-archives.apache.org/mod_mbox/hadoop-general/201210.mbox/%3CCA+z3+9FYdPmzBEaMZ71SUqzRx=eU=o4mSHUsbrpzgR9X_F1c0Q@mail.gmail.com%3E","tags":["web"]},{"url":"https://github.com/advisories/GHSA-q46v-cj5v-hvg6"}],"sources":{"cve":[{"id":"CVE-2012-4449","description":"Apache Hadoop before 0.23.4, 1.x before 1.0.4, and 2.x before 2.0.2 generate token passwords using a 20-bit secret when Kerberos security features are enabled, which makes it easier for context-dependent attackers to crack secret keys via a brute-force attack.","status":"published","published":"2017-10-30T19:00:00Z","modified":"2024-08-06T20:35:09.926Z","updated_at":"2026-11-02T14:34:51.584538Z"}],"euvd":[{"id":"EUVD-2022-4876","description":"Apache Hadoop before 0.23.4, 1.x before 1.0.4, and 2.x before 2.0.2 generate token passwords using a 20-bit secret when Kerberos security features are enabled, which makes it easier for context-dependent attackers to crack secret keys via a brute-force attack.","status":"published","published":"2017-10-30T19:00:00Z","modified":"2024-08-06T20:35:09Z","updated_at":"2026-11-03T01:56:07.912368Z"}],"ghsa":[{"id":"GHSA-q46v-cj5v-hvg6","title":"Use of a Broken or Risky Cryptographic Algorithm in Apache Hadoop","description":"Apache Hadoop before 0.23.4, 1.x before 1.0.4, and 2.x before 2.0.2 generate token passwords using a 20-bit secret when Kerberos security features are enabled, which makes it easier for context-dependent attackers to crack secret keys via a brute-force attack.","status":"published","published":"2022-05-17T00:22:31Z","modified":"2023-01-27T05:02:34Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-327"],"updated_at":"2026-11-02T14:36:18.427692Z"}],"nvd":[{"id":"CVE-2012-4449","description":"Apache Hadoop before 0.23.4, 1.x before 1.0.4, and 2.x before 2.0.2 generate token passwords using a 20-bit secret when Kerberos security features are enabled, which makes it easier for context-dependent attackers to crack secret keys via a brute-force attack.","status":"published","published":"2017-10-30T19:29:00.2Z","modified":"2026-06-16T23:45:07.253Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-327"],"updated_at":"2026-11-02T14:02:18.043773Z"}],"osv":[{"id":"GHSA-q46v-cj5v-hvg6","title":"Use of a Broken or Risky Cryptographic Algorithm in Apache Hadoop","description":"Apache Hadoop before 0.23.4, 1.x before 1.0.4, and 2.x before 2.0.2 generate token passwords using a 20-bit secret when Kerberos security features are enabled, which makes it easier for context-dependent attackers to crack secret keys via a brute-force attack.","status":"published","published":"2022-05-17T00:22:31Z","modified":"2023-11-08T03:57:07.826616Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-327"],"updated_at":"2026-11-02T15:46:54.055966Z"}]}}