{"id":"CVE-2018-5455","aliases":["EUVD-2018-17225","GHSA-xp2r-3x9c-rvxq"],"status":"published","title":"A Reliance on Cookies without Validation and Integrity Checking issue was discovered in Moxa...","description":"A Reliance on Cookies without Validation and Integrity Checking issue was discovered in Moxa OnCell G3100-HSPA Series version 1.4 Build 16062919 and prior. The application allows a cookie parameter to consist of only digits, allowing an attacker to perform a brute force attack bypassing authentication and gaining access to device functions.","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":"2026-11-07","score":0.01561,"percentile":0.75397,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287","CWE-565"],"published":"2018-03-05T17:00:00Z","modified":"2026-06-17T02:00:20Z","products":[{"vendor":"moxa","product":"oncell_g3110-hspa-t_firmware"},{"vendor":"moxa","product":"oncell_g3110-hspa_firmware"},{"vendor":"moxa","product":"oncell_g3150-hspa-t_firmware"},{"vendor":"moxa","product":"oncell_g3150-hspa_firmware"}],"references":[{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-18-060-02","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-5455"},{"url":"https://github.com/advisories/GHSA-xp2r-3x9c-rvxq"}],"sources":{"cve":[{"id":"CVE-2018-5455","description":"A Reliance on Cookies without Validation and Integrity Checking issue was discovered in Moxa OnCell G3100-HSPA Series version 1.4 Build 16062919 and prior. The application allows a cookie parameter to consist of only digits, allowing an attacker to perform a brute force attack bypassing authentication and gaining access to device functions.","status":"published","published":"2018-03-05T17:00:00Z","modified":"2024-08-05T05:33:44.372Z","cwes":["CWE-565"],"updated_at":"2026-11-02T14:35:00.948726Z"}],"euvd":[{"id":"EUVD-2018-17225","description":"A Reliance on Cookies without Validation and Integrity Checking issue was discovered in Moxa OnCell G3100-HSPA Series version 1.4 Build 16062919 and prior. The application allows a cookie parameter to consist of only digits, allowing an attacker to perform a brute force attack bypassing authentication and gaining access to device functions.","status":"published","published":"2018-03-05T17:00:00Z","modified":"2024-08-05T05:33:44Z","updated_at":"2026-11-03T02:40:10.651692Z"}],"ghsa":[{"id":"GHSA-xp2r-3x9c-rvxq","title":"A Reliance on Cookies without Validation and Integrity Checking issue was discovered in Moxa...","description":"A Reliance on Cookies without Validation and Integrity Checking issue was discovered in Moxa OnCell G3100-HSPA Series version 1.4 Build 16062919 and prior. The application allows a cookie parameter to consist of only digits, allowing an attacker to perform a brute force attack bypassing authentication and gaining access to device functions.","status":"published","published":"2022-05-13T01:32:09Z","modified":"2023-02-01T05:08:26Z","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-287"],"updated_at":"2026-11-02T14:50:45.608979Z"}],"nvd":[{"id":"CVE-2018-5455","description":"A Reliance on Cookies without Validation and Integrity Checking issue was discovered in Moxa OnCell G3100-HSPA Series version 1.4 Build 16062919 and prior. The application allows a cookie parameter to consist of only digits, allowing an attacker to perform a brute force attack bypassing authentication and gaining access to device functions.","status":"published","published":"2018-03-05T17:29:00.613Z","modified":"2026-06-17T02:00:20.917Z","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-565","CWE-287"],"updated_at":"2026-11-02T14:04:23.783914Z"}]}}