{"id":122229,"date":"2025-03-15T14:22:06","date_gmt":"2025-03-15T12:22:06","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-biblioteke-ruby-saml-privodyashhaya-k-obhodu-autentifikaczii-v-gitlab"},"modified":"2025-03-15T14:22:06","modified_gmt":"2025-03-15T12:22:06","slug":"uyazvimost-v-biblioteke-ruby-saml-privodyashhaya-k-obhodu-autentifikaczii-v-gitlab","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/uyazvimost-v-biblioteke-ruby-saml-privodyashhaya-k-obhodu-autentifikaczii-v-gitlab","title":{"rendered":"A ruby-saml k\u00f6nyvt\u00e1rban tal\u00e1lhat\u00f3 egy sebezhet\u0151s\u00e9g, amely lehet\u0151v\u00e9 teszi az azonos\u00edt\u00e1s megker\u00fcl\u00e9s\u00e9t a GitLabban.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Megjelentek a GitLab k\u00f6z\u00f6s fejleszt\u00e9si platformj\u00e1hoz tartoz\u00f3 jav\u00edt\u00f3friss\u00edt\u00e9sek \u2014 17.9.2, 17.8.5 \u00e9s 17.7.7, amelyek jav\u00edtj\u00e1k a CVE-2025-25291 \u00e9s a CVE-2025-25292 sebezhet\u0151s\u00e9get, amely lehet\u0151v\u00e9 teszi a SAML (Security Assertion Markup Language) alap\u00fa hiteles\u00edt\u00e9s megker\u00fcl\u00e9s\u00e9t. A sebezhet\u0151s\u00e9g a ruby-saml Ruby k\u00f6nyvt\u00e1rban tal\u00e1lhat\u00f3, amely a SAML-alap\u00fa hiteles\u00edt\u00e9si funkci\u00f3kat val\u00f3s\u00edtja meg. A GitLab mellett m\u00e1s projekteket is \u00e9rint, amelyek ezt a k\u00f6nyvt\u00e1rat haszn\u00e1lj\u00e1k. A probl\u00e9ma a ruby-saml 1.18.0 \u00e9s 1.12.4 friss\u00edt\u00e9sekben lett orvosolva. <\/p>\n

A sebezhet\u0151s\u00e9get a ReXML \u00e9s a Nokogiri XML dokumentumok feldolgoz\u00e1s\u00e1nak elt\u00e9r\u00e9sei okozz\u00e1k, amelyek k\u00f6vetkezt\u00e9ben ugyanazon XML dokumentum feldolgoz\u00e1sa sor\u00e1n elt\u00e9r\u0151 szerkezet\u0171 dokumentumok j\u00f6ttek l\u00e9tre. A probl\u00e9ma az, hogy az REXML \u00e9s a Nokogiri elt\u00e9r\u0151en kezelik a digit\u00e1lis al\u00e1\u00edr\u00e1sokat az XML dokumentumban, ami lehet\u0151v\u00e9 teszi a t\u00e1mad\u00f3k sz\u00e1m\u00e1ra, hogy olyan felt\u00e9teleket teremtsenek, amelyek eset\u00e9n egyik al\u00e1\u00edr\u00e1st haszn\u00e1lnak a hiteles\u00edt\u00e9s sor\u00e1n, m\u00edg egy m\u00e1sikat az alany azonos\u00edt\u00e1s\u00e1n\u00e1l. Ez a lehet\u0151s\u00e9g lehet\u0151s\u00e9get ad a t\u00e1mad\u00f3nak az XSW (XML Signature Wrapping) t\u00e1mad\u00e1si m\u00f3dszer alkalmaz\u00e1s\u00e1ra a SAML v\u00e1laszok hamis\u00edt\u00e1s\u00e1ra b\u00e1rmilyen tartalom eset\u00e9ben, amennyiben hozz\u00e1f\u00e9r\u00e9ssel rendelkezik b\u00e1rmely al\u00e1\u00edrt SAML dokumentumhoz. <\/p>\n

A probl\u00e9ma a GitHub kezdem\u00e9nyez\u00e9se sor\u00e1n ker\u00fclt el\u0151t\u00e9rbe, amely azzal foglalkozott, hogy a GitHub \u00e1t\u00e1lljon e k\u00f6nyvt\u00e1r haszn\u00e1lat\u00e1ra, \u00e9s biztons\u00e1gi ellen\u0151rz\u00e9s c\u00e9lj\u00e1b\u00f3l bug bounty versenyt hirdettek egy tesztk\u00f6rnyezet felt\u00f6r\u00e9s\u00e9re, amelyben a SAML hiteles\u00edt\u00e9st a ruby-saml k\u00f6nyvt\u00e1r seg\u00edts\u00e9g\u00e9vel val\u00f3s\u00edtott\u00e1k meg. Az egyik biztons\u00e1gi kutat\u00f3 felfigyeltek a sebezhet\u0151s\u00e9gre. A probl\u00e9ma vizsg\u00e1lata sor\u00e1n a GitHub munkat\u00e1rsa egy \u00faj, ugyanazon elven alapul\u00f3 t\u00e1mad\u00e1si m\u00f3dot is \u00e9szlelt. <\/p>\n

K\u00e9s\u0151bb a t\u00e1mad\u00e1si lehet\u0151s\u00e9g meger\u0151s\u00edt\u00e9st nyert a GitLab eset\u00e9ben. A GitLab kontextus\u00e1ban a sebezhet\u0151s\u00e9g lehet\u0151v\u00e9 teszi a t\u00e1mad\u00f3nak, aki hozz\u00e1f\u00e9r egy \u00e9rv\u00e9nyesen al\u00e1\u00edrt SAML dokumentumhoz, hogy egy m\u00e1sik felhaszn\u00e1l\u00f3k\u00e9nt \u00e1tjusson a hiteles\u00edt\u00e9sen, azaz a hiteles\u00edt\u00e9s megker\u00fcl\u00e9s\u00e9hez \u00e9s egy m\u00e1sik felhaszn\u00e1l\u00f3 bejelentkez\u00e9s\u00e9hez a t\u00e1mad\u00f3nak m\u00e1r hozz\u00e1f\u00e9r\u00e9ssel kell rendelkeznie az egyik munkahelyi felhaszn\u00e1l\u00f3i fi\u00f3khoz.
\n
Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u043d\u043e\u0439 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 GitLab — 17.9.2, 17.8.5 \u0438 17.7.7, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2025-25291, CVE-2025-25292), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043e\u0431\u043e\u0439\u0442\u0438 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044e \u043d\u0430 \u0431\u0430\u0437\u0435 SAML (Security Assertion Markup Language). \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0440\u0438\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u0435\u0442 \u0432 Ruby-\u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0435 ruby-saml, \u0440\u0435\u0430\u043b\u0438\u0437\u0443\u044e\u0449\u0435\u0439 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u0434\u043b\u044f SAML-\u0430\u0432\u0442\u043e\u0440\u0438\u0437\u0430\u0446\u0438\u0438. \u041a\u0440\u043e\u043c\u0435 GitLab \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0437\u0430\u0442\u0440\u0430\u0433\u0438\u0432\u0430\u0435\u0442 \u0438 \u0434\u0440\u0443\u0433\u0438\u0435 \u043f\u0440\u043e\u0435\u043a\u0442\u044b, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0435 \u0434\u0430\u043d\u043d\u0443\u044e \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0443. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0432 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f\u0445 ruby-saml 1.18.0 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-122229","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Sebezhet\u0151s\u00e9g a ruby-saml k\u00f6nyvt\u00e1rban, amely a GitLab hiteles\u00edt\u00e9s\u00e9nek megker\u00fcl\u00e9s\u00e9hez vezet | ProHoster","description":"Megjelentek a GitLab k\u00f6z\u00f6s fejleszt\u00e9si platformj\u00e1hoz tartoz\u00f3 jav\u00edt\u00f3friss\u00edt\u00e9sek \u2013 17.9.2, 17.8.5 \u00e9s 17.7.7 \u2013 amelyek megsz\u00fcntett\u00e9k a sebezhet\u0151s\u00e9get (CVE-2025-25291, CVE-2025-25292), amely megker\u00fclhet\u0151.","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/uyazvimost-v-biblioteke-ruby-saml-privodyashhaya-k-obhodu-autentifikaczii-v-gitlab","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hu_HU","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0435 ruby-saml, \u043f\u0440\u0438\u0432\u043e\u0434\u044f\u0449\u0430\u044f \u043a \u043e\u0431\u0445\u043e\u0434\u0443 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0432 GitLab | ProHoster","og:description":"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u043d\u043e\u0439 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 GitLab - 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