{"id":121960,"date":"2025-02-16T20:22:05","date_gmt":"2025-02-16T18:22:05","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-postgresql-ustranena-uyazvimost-ispolzovannaya-pri-atake-na-beyondtrust"},"modified":"2025-02-16T20:22:05","modified_gmt":"2025-02-16T18:22:05","slug":"v-postgresql-ustranena-uyazvimost-ispolzovannaya-pri-atake-na-beyondtrust","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/v-postgresql-ustranena-uyazvimost-ispolzovannaya-pri-atake-na-beyondtrust","title":{"rendered":"PostgreSQL-is on k\u00f5rvaldatud haavatavus, mida kasutati BeyondTrusti r\u00fcndamisel.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Korrektsioone tehti k\u00f5igile toetatud PostgreSQL harudele 17.3, 16.7, 15.11, 14.16 ja 13.19, milles on parandatud \u00fcle 70 vea ning k\u00f5rvaldatud turvaauk (CVE-2025-1094), mis l\u00f5i v\u00e4lja detsembris r\u00fcnnakus ettev\u00f5ttele BeyondTrust ja Ameerika \u00dchendriikide rahandusministeeriumile. PostgreSQL-i probleem tuvastati, kui anal\u00fc\u00fcsiti kaugjuurdep\u00e4\u00e4su haavatavust (CVE-2024-12356) BeyondTrust PRA (Privileged Remote Access) ja BeyondTrust RS (Remote Support) teenustes, mille ekspluateerimise k\u00e4igus kasutati lisaks varem tundmatut (0-day) haavatavust libpq-s. <\/p>\n

R\u00fcnnaku tulemusena \u00f5nnestus kurjategijatel saada API juurdep\u00e4\u00e4suv\u00f5ti, mida kasutatakse kaugteenuste osutamiseks BeyondTrust'i SaaS-teenuste klientidele. Seda API-t kasutati parooli l\u00e4htestamiseks ja Ameerika \u00dchendriikide rahandusministeeriumi infrastruktuuri kompromiteerimiseks, kes kasutas BeyondTrust'i tooteid. R\u00fcnnaku k\u00e4igus suudeti kurjategijatel alla laadida konfidentsiaalseid dokumente ja p\u00e4\u00e4seda ministeeriumi t\u00f6\u00f6tajate t\u00f6\u00f6jaamadele. <\/p>\n

Haavatavus ilmneb libpq teegis, mis pakub API-d andmebaasidega suhtlemiseks C keeles (teegi peal on rakendatud ka C++, Perl, PHP ja Pythoni raamatukogud). Probleem puudutab rakendusi, mis kasutavad spetsiaalsete m\u00e4rkide ja jutum\u00e4rkide neutraliseerimiseks funktsioone PQescapeLiteral(), PQescapeIdentifier(), PQescapeString() v\u00f5i PQescapeStringConn(). <\/p>\n

R\u00fcndaja v\u00f5ib saavutada oma SQL-koodi sisestamise, kui v\u00e4ljast saadud tekst ekraanil nagu eespool mainitud libpq funktsioonide kaudu enne SQL-p\u00e4ringus kasutamist. BeyondTrusti rakendustes edastati niimoodi ekraaniga p\u00e4ringud k\u00e4surea utiliidi psql kaudu. Haavatavus tuleneb ekraani funktsioonides UTF-8 mitmem\u00e4rgiliste j\u00e4rjestuste kontrollimise puudumisest, mis v\u00f5imaldab vahetada jutum\u00e4rkide normaliseerimist vigaste j\u00e4rjestuste m\u00e4\u00e4ramisega. <\/p>\n

R\u00fcnde teksti vale UTF-8 m\u00e4rk, mis koosneb baitidest 0xC0 ja 0x27 («\u2514'»). Bait 0x27 ASCII-koodis vastab \u00fchekordsele jutum\u00e4rgile («‘»), mis n\u00f5uab jaotamist. Erakoodis t\u00f6\u00f6deldakse baitide kombinatsiooni 0xC0 ja 0x27 kui \u00fchte Unicode-m\u00e4rki. Seega j\u00e4\u00e4b bait 0x27 selles j\u00e4rjestuses ekraanist v\u00e4ljapoole, kui SQL-p\u00e4ringut t\u00f6\u00f6deldakse utiliidi psql kaudu, siis t\u00f6\u00f6deldakse seda kui jutum\u00e4rki. <\/p>\n

Koormuse anal\u00fc\u00fcsi korral SQL-p\u00e4ringute k\u00e4itamisel<\/a> utiliidi psql abil saab k\u00e4su rea t\u00e4itmise v\u00f5imaldamiseks kasutada asendust k\u00e4surea «\!», mis on m\u00f5eldud psql-s juhuslike programmide k\u00e4ivitamiseks. N\u00e4iteks v\u00f5ib k\u00e4ivitada serveril<\/a> utiliidi «id» saab edastada v\u00e4\u00e4rtuse «hax\xC0′; \! id #». Allolevas n\u00e4ites kasutatakse ekraanilt v\u00e4ljav\u00f5tun\u00e4idik PHP-skripti dbquote, mis kasutab PHP-funktsiooni pg_escape_string, t\u00f6\u00f6tades libpq funktsiooni PQescapeString kohal: $ echo -e «hello \xC0’world'» | .\/dbquote ‘hello \u2514’world»’ $ quoted=$(echo -e «hax\xC0′; \! id # » | .\/dbquote) $ echo «SELECT COUNT(1) FROM gw_sessions WHERE session_key = $quoted AND session_type = ‘sdcust’ AND (expiration IS NULL OR expiration>NOW())» | psql -e SELECT COUNT(1) FROM gw_sessions WHERE session_key = ‘hax\u2514’; ERROR: valest andmevorming UTF-8 jaoks on vale: 0xc0 0x27 uid=1000(myexamplecompany) gid=1000(myexamplecompany)
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0421\u0444\u043e\u0440\u043c\u0438\u0440\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 \u0434\u043b\u044f \u0432\u0441\u0435\u0445 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u043c\u044b\u0445 \u0432\u0435\u0442\u043e\u043a PostgreSQL 17.3, 16.7, 15.11, 14.16 \u0438 13.19, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u043e \u0431\u043e\u043b\u0435\u0435 70 \u043e\u0448\u0438\u0431\u043e\u043a \u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2025-1094), \u0432 \u043a\u043e\u043d\u0446\u0435 \u0434\u0435\u043a\u0430\u0431\u0440\u044f \u0437\u0430\u0434\u0435\u0439\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u043d\u0430\u044f \u0432 \u0430\u0442\u0430\u043a\u0435 \u043d\u0430 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044e BeyondTrust \u0438 \u041c\u0438\u043d\u0438\u0441\u0442\u0435\u0440\u0441\u0442\u0432\u043e \u0444\u0438\u043d\u0430\u043d\u0441\u043e\u0432 \u0421\u0428\u0410. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0432 PostgreSQL \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u043f\u0440\u0438 \u0430\u043d\u0430\u043b\u0438\u0437\u0435 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 (CVE-2024-12356) \u0432 \u0441\u0435\u0440\u0432\u0438\u0441\u0430\u0445 BeyondTrust PRA (Privileged Remote Access) \u0438 BeyondTrust […]<\/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-121960","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\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\n","aioseo_head_json":{"title":"\ud83e\udd47 PostgreSQL-is on k\u00f5rvaldatud haavatavus, mida kasutati BeyondTrusti r\u00fcnnakus | ProHoster","description":"On loodud parandavaid uuendusi k\u00f5igi toetatavate PostgreSQL 17.3, 16.7, 15.11, 14.16 ja 13.19 harude jaoks, kus on parandatud \u00fcle 70 vea ning k\u00f5rvaldati haavatavus (CVE-2025-1094), mis detsembrikuu l\u00f5pus oli kasutusel r\u00fcnnakutes BeyondTrusti ja USA rahandusministeeriumi vastu. PostgreSQL-iga seotud probleem tuvastati BeyondTrust PRA (Privileged Remote Access) teenustes esinenud kaugjuhtimishaavatavuse (CVE-2024-12356) anal\u00fc\u00fcsi k\u00e4igus.","canonical_url":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/v-postgresql-ustranena-uyazvimost-ispolzovannaya-pri-atake-na-beyondtrust","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"et_EE","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\u0412 PostgreSQL \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c, 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