{"id":489,"date":"2026-01-04T15:26:48","date_gmt":"2026-01-04T15:26:48","guid":{"rendered":"https:\/\/rmfsales.com\/?p=489"},"modified":"2026-01-04T16:19:40","modified_gmt":"2026-01-04T16:19:40","slug":"hacking-17","status":"publish","type":"post","link":"https:\/\/rmfsales.com\/?p=489","title":{"rendered":"Offsec Proving Grounds Walkthrough &#8211; RussianDolls"},"content":{"rendered":"<p>This is a walkthrough of <a class=\"qnYTlArzYtboRwdjbntMpxxVLYbykXIogw \" tabindex=\"0\" href=\"https:\/\/www.linkedin.com\/company\/offsec-training\/\" target=\"_self\" data-test-app-aware-link=\"\">OffSec<\/a> Proving Grounds machine &#8220;RussianDolls&#8221;. I haven&#8217;t seen many, if any walkthroughs of this machine. I wrote a custom SSRF script to brute force ports (it could have been very simple, but I am a psychopath and over engineered it), link to Github in video description. We use this script to find a previously unknown application. After a bit of directory traversal we find creds and login via SSH&#8230;we find a binary with &#8220;sudo -l&#8221; abilities and have to figure out how to take advantage of it to privesc! ***SPOILER***Walkthrough of the machine called &#8220;RussianDolls&#8221; in the Offsec Proving Grounds&#8230;don&#8217;t watch unless you want help getting through the machine.<\/p>\n<p>Script:<\/p>\n<p><a href=\"https:\/\/github.com\/rflemen\/python_code\/blob\/main\/offsec_russiandolls_scanner\/scan_url.py\">https:\/\/github.com\/rflemen\/python_code\/blob\/main\/offsec_russiandolls_scanner\/scan_url.py<\/a><\/p>\n<p>&nbsp;<\/p>\n<div class=\"jetpack-video-wrapper\"><iframe loading=\"lazy\" title=\"Offsec Proving Grounds Walkthrough - RussianDolls\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/Ks0qTyP6SWo?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n","protected":false},"excerpt":{"rendered":"<p>This is a walkthrough of OffSec Proving Grounds machine &#8220;RussianDolls&#8221;. I haven&#8217;t seen many, if any walkthroughs of this machine. I wrote a custom SSRF script to brute force ports (it could have been very simple, but I am a psychopath and over engineered it), link to Github in video&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[53,48,7,27,55,73,44,10,54],"tags":[51,13,87,28,57,74,46,15,56],"class_list":["post-489","post","type-post","status-publish","format-standard","hentry","category-ethical-hacking","category-hacking","category-linux","category-networking","category-offsec","category-python","category-security","category-tutorial","category-walkthrough","tag-cybersecurity","tag-linux","tag-malware-development","tag-networking","tag-offsec","tag-python","tag-security","tag-tutorial","tag-walkthrough"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/rmfsales.com\/index.php?rest_route=\/wp\/v2\/posts\/489","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rmfsales.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rmfsales.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rmfsales.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rmfsales.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=489"}],"version-history":[{"count":2,"href":"https:\/\/rmfsales.com\/index.php?rest_route=\/wp\/v2\/posts\/489\/revisions"}],"predecessor-version":[{"id":491,"href":"https:\/\/rmfsales.com\/index.php?rest_route=\/wp\/v2\/posts\/489\/revisions\/491"}],"wp:attachment":[{"href":"https:\/\/rmfsales.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=489"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rmfsales.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=489"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rmfsales.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=489"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}