{"id":"CVE-2020-13413","aliases":["EUVD-2020-5667","GHSA-8c4p-575f-fq4h"],"status":"published","title":"An issue was discovered in Aviatrix Controller before 5.4.1204. There is a Observable Response...","description":"An issue was discovered in Aviatrix Controller before 5.4.1204. There is a Observable Response Discrepancy from the API, which makes it easier to perform user enumeration via brute force.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01369,"percentile":0.72116,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200","CWE-203"],"published":"2020-05-22T20:48:39Z","modified":"2026-06-17T02:53:05Z","products":[{"vendor":"aviatrix","product":"controller"},{"vendor":"aviatrix","product":"vpn_client"}],"references":[{"url":"https://docs.aviatrix.com/HowTos/security_bulletin_article.html#observable-response-discrepancy-from-api","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://www.criticalstart.com/multiple-vulnerabilities-discovered-in-aviatrix/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-13413"},{"url":"https://github.com/advisories/GHSA-8c4p-575f-fq4h"}],"sources":{"cve":[{"id":"CVE-2020-13413","description":"An issue was discovered in Aviatrix Controller before 5.4.1204. There is a Observable Response Discrepancy from the API, which makes it easier to perform user enumeration via brute force.","status":"published","published":"2020-05-22T20:48:39Z","modified":"2024-08-04T12:18:18.168Z","updated_at":"2026-11-02T14:35:53.868619Z"}],"euvd":[{"id":"EUVD-2020-5667","description":"An issue was discovered in Aviatrix Controller before 5.4.1204. There is a Observable Response Discrepancy from the API, which makes it easier to perform user enumeration via brute force.","status":"published","published":"2020-05-22T20:48:39Z","modified":"2024-08-04T12:18:18Z","updated_at":"2026-11-03T03:07:37.76906Z"}],"ghsa":[{"id":"GHSA-8c4p-575f-fq4h","title":"An issue was discovered in Aviatrix Controller before 5.4.1204. There is a Observable Response...","description":"An issue was discovered in Aviatrix Controller before 5.4.1204. There is a Observable Response Discrepancy from the API, which makes it easier to perform user enumeration via brute force.","status":"published","published":"2022-05-24T17:18:36Z","modified":"2023-01-29T05:03:01Z","cwes":["CWE-200","CWE-203"],"updated_at":"2026-11-02T14:45:13.266415Z"}],"nvd":[{"id":"CVE-2020-13413","description":"An issue was discovered in Aviatrix Controller before 5.4.1204. There is a Observable Response Discrepancy from the API, which makes it easier to perform user enumeration via brute force.","status":"published","published":"2020-05-22T21:15:12.677Z","modified":"2026-06-17T02:53:05.937Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-203"],"updated_at":"2026-11-02T14:06:04.922138Z"}]}}