{"id":"CVE-2023-44194","aliases":["EUVD-2023-48553","GHSA-97hh-rrpx-8434"],"status":"published","title":"Junos OS: An unauthenticated attacker with local access to the device can create a backdoor with root privileges","description":"An Incorrect Default Permissions vulnerability in Juniper Networks Junos OS allows an unauthenticated attacker with local access to the device to create a backdoor with root privileges. The issue is caused by improper directory permissions on a certain system directory, allowing an attacker with access to this directory to create a backdoor with root privileges.\n\nThis issue affects Juniper Networks Junos OS:\n\n\n\n  *  All versions prior to 20.4R3-S5;\n  *  21.1 versions prior to 21.1R3-S4;\n  *  21.2 versions prior to 21.2R3-S4;\n  *  21.3 versions prior to 21.3R3-S3;\n  *  21.4 versions prior to 21.4R3-S1.","severity":{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00176,"percentile":0.07193,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-276"],"published":"2023-10-12T23:04:18Z","modified":"2026-06-17T06:27:06Z","products":[{"vendor":"juniper","product":"junos"},{"vendor":"juniper networks","product":"junos os"}],"references":[{"url":"https://supportportal.juniper.net/JSA73158","tags":["vendor-advisory","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-44194"},{"url":"https://github.com/advisories/GHSA-97hh-rrpx-8434"}],"sources":{"cve":[{"id":"CVE-2023-44194","title":"Junos OS: An unauthenticated attacker with local access to the device can create a backdoor with root privileges","description":"\nAn Incorrect Default Permissions vulnerability in Juniper Networks Junos OS allows an unauthenticated attacker with local access to the device to create a backdoor with root privileges. The issue is caused by improper directory permissions on a certain system directory, allowing an attacker with access to this directory to create a backdoor with root privileges.\n\nThis issue affects Juniper Networks Junos OS:\n\n\n\n  *  All versions prior to 20.4R3-S5;\n  *  21.1 versions prior to 21.1R3-S4;\n  *  21.2 versions prior to 21.2R3-S4;\n  *  21.3 versions prior to 21.3R3-S3;\n  *  21.4 versions prior to 21.4R3-S1.\n\n\n\n\n\n\n","status":"published","published":"2023-10-12T23:04:18.124Z","modified":"2025-02-27T20:41:40.825Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:35:21.232549Z"}],"euvd":[{"id":"EUVD-2023-48553","description":"\nAn Incorrect Default Permissions vulnerability in Juniper Networks Junos OS allows an unauthenticated attacker with local access to the device to create a backdoor with root privileges. The issue is caused by improper directory permissions on a certain system directory, allowing an attacker with access to this directory to create a backdoor with root privileges.\n\nThis issue affects Juniper Networks Junos OS:\n\n\n\n  *  All versions prior to 20.4R3-S5;\n  *  21.1 versions prior to 21.1R3-S4;\n  *  21.2 versions prior to 21.2R3-S4;\n  *  21.3 versions prior to 21.3R3-S3;\n  *  21.4 versions prior to 21.4R3-S1.\n\n\n\n\n\n\n","status":"published","published":"2023-10-12T23:04:18Z","modified":"2025-02-27T20:41:40Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T20:53:21.469581Z"}],"ghsa":[{"id":"GHSA-97hh-rrpx-8434","title":"\nAn Incorrect Default Permissions vulnerability in Juniper Networks Junos OS allows an...","description":"\nAn Incorrect Default Permissions vulnerability in Juniper Networks Junos OS allows an unauthenticated attacker with local access to the device to create a backdoor with root privileges. The issue is caused by improper directory permissions on a certain system directory, allowing an attacker with access to this directory to create a backdoor with root privileges.\n\nThis issue affects Juniper Networks Junos OS:\n\n\n\n  *  All versions prior to 20.4R3-S5;\n  *  21.1 versions prior to 21.1R3-S4;\n  *  21.2 versions prior to 21.2R3-S4;\n  *  21.3 versions prior to 21.3R3-S3;\n  *  21.4 versions prior to 21.4R3-S1.\n\n\n\n\n\n\n","status":"published","published":"2023-10-13T00:30:19Z","modified":"2024-04-04T08:37:07Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:56:59.652212Z"}],"nvd":[{"id":"CVE-2023-44194","description":"\nAn Incorrect Default Permissions vulnerability in Juniper Networks Junos OS allows an unauthenticated attacker with local access to the device to create a backdoor with root privileges. The issue is caused by improper directory permissions on a certain system directory, allowing an attacker with access to this directory to create a backdoor with root privileges.\n\nThis issue affects Juniper Networks Junos OS:\n\n\n\n  *  All versions prior to 20.4R3-S5;\n  *  21.1 versions prior to 21.1R3-S4;\n  *  21.2 versions prior to 21.2R3-S4;\n  *  21.3 versions prior to 21.3R3-S3;\n  *  21.4 versions prior to 21.4R3-S1.\n\n\n\n\n\n\n","status":"published","published":"2023-10-13T00:15:12.45Z","modified":"2026-06-17T06:27:06.06Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:08:37.83429Z"}]}}