{"id":79489,"date":"2020-04-27T19:41:58","date_gmt":"2020-04-27T17:41:58","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/legkij-sposob-zashhitit-svoj-mikrotik-ot-atak"},"modified":"2020-04-27T19:41:58","modified_gmt":"2020-04-27T17:41:58","slug":"legkij-sposob-zashhitit-svoj-mikrotik-ot-atak","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/administrirovanie\/legkij-sposob-zashhitit-svoj-mikrotik-ot-atak","title":{"rendered":"M\u00ebnyra e leht\u00eb p\u00ebr t\u00eb mbrojtur Mikrotik-un tuaj nga sulmet","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

D\u00ebshiroj t\u00eb ndaj me komunitetin nj\u00eb m\u00ebnyr\u00eb t\u00eb thjesht\u00eb dhe funksionale se si me ndihm\u00ebn e Mikrotik t\u00eb mbrojm\u00eb rrjetin ton\u00eb dhe sh\u00ebrbimet q\u00eb duken p\u00ebrmes tij nga sulmet e jashtme. N\u00eb ve\u00e7anti, vet\u00ebm me tre rregulla t\u00eb organizojm\u00eb n\u00eb Mikrotik nj\u00eb honeypot. <\/p>\n

K\u00ebshtu, le t\u00eb imagjinojm\u00eb se kemi nj\u00eb zyr\u00eb t\u00eb vog\u00ebl, me nj\u00eb IP t\u00eb jashtme pas s\u00eb cil\u00ebs ndodhet nj\u00eb server RDP p\u00ebr punonj\u00ebsit q\u00eb punojn\u00eb nga distanca. Rregulli i par\u00eb \u00ebsht\u00eb padyshim t\u00eb ndryshojm\u00eb portin 3389 n\u00eb nd\u00ebrfaqen e jashtme p\u00ebr n\u00eb nj\u00eb port tjet\u00ebr. Por kjo nuk zgjas shum\u00eb, pas disa dit\u00ebsh, regjistri i auditi t\u00eb serverit t\u00eb terminalit do t\u00eb filloj\u00eb t\u00eb tregoj\u00eb disa autentikime t\u00eb d\u00ebshtuar n\u00eb sekond\u00eb nga klient\u00eb t\u00eb panjohur. <\/p>\n

Nj\u00eb situat\u00eb tjet\u00ebr \u00ebsht\u00eb se pas Mikrotik keni nj\u00eb asterisk, natyrisht jo n\u00eb portin udp 5060, dhe pas disa dit\u00ebsh gjithashtu fillon p\u00ebrmendja e fjal\u00ebkalimeve... po, e di, fail2ban \u00ebsht\u00eb gjith\u00e7ka, por do t\u00eb duhet t\u00eb punojm\u00eb akoma me t\u00eb... p\u00ebr shembull, un\u00eb koh\u00ebt e fundit ngrita at\u00eb n\u00eb ubuntu 18.04 dhe me habi e zbulova se nga kutia fail2ban nuk p\u00ebrmban konfigurimet aktuale p\u00ebr asterisk nga po ai distro ubuntu... dhe nuk mund t\u00eb gjej shpejt konfigurimet e gatshme t\u00eb \u201crecetave\u201d, numrat e l\u00ebshimeve rriten me kalimin e viteve dhe artikujt me \u201crecetat\u201d p\u00ebr versionet m\u00eb t\u00eb vjetra nuk funksionojn\u00eb m\u00eb, nd\u00ebrsa t\u00eb reja pothuajse nuk shfaqen... Por di\u00e7ka po largohem...
\n<\/a><\/noindex>
\nK\u00ebshtu, \u00e7far\u00eb \u00ebsht\u00eb nj\u00eb honeypot n\u00eb dy fjal\u00eb - \u00ebsht\u00eb nj\u00eb josh\u00ebs, n\u00eb rastin ton\u00eb nj\u00eb port i njohur n\u00eb IP-n\u00eb exterme, \u00e7do k\u00ebrkes\u00eb n\u00eb k\u00ebt\u00eb port nga nj\u00eb klient i jasht\u00ebm d\u00ebrgon adres\u00ebn src n\u00eb list\u00ebn e zez\u00eb. Kaq.<\/p>\n

\/ip firewall filter\nadd action=add-src-to-address-list address-list="Honeypot Hacker" \n    address-list-timeout=30d0h0m chain=input comment="block honeypot ssh rdp winbox" \n    connection-state=new dst-port=22,3389,8291 in-interface=\n    ether4-wan protocol=tcp\nadd action=add-src-to-address-list address-list="Honeypot Hacker" \n    address-list-timeout=30d0h0m chain=input comment=\n    "block honeypot asterisk" connection-state=new dst-port=5060 \n    in-interface=ether4-wan protocol=udp \n\/ip firewall raw\nadd action=drop chain=prerouting in-interface=ether4-wan src-address-list=\n    "Honeypot Hacker"\n<\/code><\/pre>\n
\nRregulli i par\u00eb n\u00eb portet e njohura TCP 22, 3389, 8291 t\u00eb nd\u00ebrfaqes ekstreme ether4-wan d\u00ebrgon IP-n\u00eb \u201cmysafir\u201d n\u00eb list\u00ebn \u201cHoneypot Hacker\u201d (portet p\u00ebr ssh, rdp dhe winbox jan\u00eb \u00e7aktivizuar ose ndryshuar paraprakisht n\u00eb t\u00eb tjera). Rregulli i dyt\u00eb b\u00ebn t\u00eb nj\u00ebjt\u00ebn gj\u00eb n\u00eb portin e njohur UDP 5060.<\/p>\n
Rregulli i tret\u00eb n\u00eb faz\u00ebn e preroutimit heq paketat \u201cmysafir\u201d t\u00eb cilat srs-address e tyre e kan\u00eb n\u00eb list\u00ebn \u201cHoneypot Hacker\u201d.<\/p>\n
Pas dy jav\u00ebsh pun\u00eb me Mikrotik-in tim n\u00eb sht\u00ebpi, lista \u201cHoneypot Hacker\u201d p\u00ebrfshinte rreth nj\u00ebmij\u00eb e pes\u00ebqind adresa IP t\u00eb adhuruesve t\u00eb \u201cmbajtjes p\u00ebr briri\u201d t\u00eb burimeve t\u00eb mia rrjetore (n\u00eb sht\u00ebpi kam telefonin\u00eb, post\u00ebn, nextcloud, rdp). Sulmet me Brute-force u ndal\u00ebn, erdhi lumturia. <\/p>\n
N\u00eb pun\u00eb nuk \u00ebsht\u00eb gjith\u00e7ka kaq e thjesht\u00eb, atje serveri rdp vazhdon t\u00eb goditet me p\u00ebrmendje fjal\u00ebkalimesh.<\/p>\n
Duket se skaneri e kan\u00eb p\u00ebrcaktuar numrin e portit shum\u00eb para se t\u00eb aktivizohej honeypot, dhe gjat\u00eb karantin\u00ebs nuk \u00ebsht\u00eb kaq e leht\u00eb t\u00eb rregullosh m\u00eb shum\u00eb se 100 p\u00ebrdorues, prej t\u00eb cil\u00ebve 20% jan\u00eb mbi 65 vje\u00e7. N\u00eb rastin kur porti nuk mund t\u00eb ndryshohet, ka nj\u00eb recet\u00eb t\u00eb vog\u00ebl funksionuese. E kam par\u00eb di\u00e7ka t\u00eb ngjashme n\u00eb internet, por k\u00ebtu ka disa p\u00ebrmir\u00ebsime dhe rregullime t\u00eb ndjeshme: <\/p>\n
                        Rregullat p\u00ebr konfigurimin e Port Knocking<\/b><\/p>\n
 \/ip firewall filter\nadd action=add-src-to-address-list address-list=rdp_blacklist \n    address-list-timeout=15m chain=forward comment=rdp_to_blacklist \n    connection-state=new dst-port=3389 protocol=tcp src-address-list=\n    rdp_stage12\nadd action=add-src-to-address-list address-list=rdp_stage12 \n    address-list-timeout=4m chain=forward connection-state=new dst-port=3389 \n    protocol=tcp src-address-list=rdp_stage11\nadd action=add-src-to-address-list address-list=rdp_stage11 \n    address-list-timeout=4m chain=forward connection-state=new dst-port=3389 \n    protocol=tcp src-address-list=rdp_stage10\nadd action=add-src-to-address-list address-list=rdp_stage10 \n    address-list-timeout=4m chain=forward connection-state=new dst-port=3389 \n    protocol=tcp src-address-list=rdp_stage9\nadd action=add-src-to-address-list address-list=rdp_stage9 \n    address-list-timeout=4m chain=forward connection-state=new dst-port=3389 \n    protocol=tcp src-address-list=rdp_stage8\nadd action=add-src-to-address-list address-list=rdp_stage8 \n    address-list-timeout=4m chain=forward connection-state=new dst-port=3389 \n    protocol=tcp src-address-list=rdp_stage4\nadd action=add-src-to-address-list address-list=rdp_stage7 \n    address-list-timeout=4m chain=forward connection-state=new dst-port=3389 \n    protocol=tcp src-address-list=rdp_stage6\nadd action=add-src-to-address-list address-list=rdp_stage6 \n    address-list-timeout=4m chain=forward connection-state=new dst-port=3389 \n    protocol=tcp src-address-list=rdp_stage5\nadd action=add-src-to-address-list address-list=rdp_stage5 \n    address-list-timeout=4m chain=forward connection-state=new dst-port=\n    3389 protocol=tcp src-address-list=rdp_stage4\nadd action=add-src-to-address-list address-list=rdp_stage4 \n    address-list-timeout=4m chain=forward connection-state=new dst-port=\n    3389 protocol=tcp src-address-list=rdp_stage3\nadd action=add-src-to-address-list address-list=rdp_stage3 \n    address-list-timeout=4m chain=forward connection-state=new dst-port=3389 \n    protocol=tcp src-address-list=rdp_stage2\nadd action=add-src-to-address-list address-list=rdp_stage2 \n    address-list-timeout=4m chain=forward connection-state=new dst-port=3389 \n    protocol=tcp src-address-list=rdp_stage1\nadd action=add-src-to-address-list address-list=rdp_stage1 \n    address-list-timeout=4m chain=forward connection-state=new dst-port=3389 \n    protocol=tcp \n\/ip firewall raw\nadd action=drop chain=prerouting in-interface=ether4-wan src-address-list=\nrdp_blacklist\n<\/code><\/pre>\n
\nP\u00ebr 4 minuta, klienti i larg\u00ebt lejohet t\u00eb b\u00ebj\u00eb vet\u00ebm 12 'k\u00ebrkesa' t\u00eb reja p\u00ebr RDP serverit<\/a>. Nj\u00eb p\u00ebrpjekje p\u00ebr hyrje \u00ebsht\u00eb nga 1 deri n\u00eb 4 'k\u00ebrkesa'. Me 'k\u00ebrkes\u00ebn' e 12-t\u00eb - bllokimi p\u00ebr 15 minuta. N\u00eb rastin tim, sulmuesit nuk e ndal\u00ebn t\u00eb godasin serverin, po e p\u00ebrshtat\u00ebn p\u00ebr timing dhe tani e b\u00ebjn\u00eb shum\u00eb ngadal\u00eb, kjo shpejt\u00ebsi p\u00ebrzgjedhjeje e ul efikasitetin e sulmit n\u00eb zero. Punonj\u00ebsit e kompanis\u00eb nuk kan\u00eb p\u00ebrjetuar asnj\u00eb shqet\u00ebsim nga masat e marra. <\/p>\n
                        Nj\u00eb truk i vog\u00ebl tjet\u00ebr<\/b>
\n                         Kjo rregull \u00ebsht\u00eb aktivizuar sipas orarit n\u00eb or\u00ebn 1 t\u00eb nat\u00ebs dhe neutralizohet n\u00eb or\u00ebn 5, kur njer\u00ebzit e gjall\u00eb sigurisht q\u00eb flen\u00eb, nd\u00ebrsa automatik\u00ebt p\u00ebrzgjedh\u00ebs vazhdojn\u00eb t\u00eb mbahen zgjuar.<\/p>\n
\/ip firewall filter \nadd action=add-src-to-address-list address-list=rdp_blacklist \n    address-list-timeout=1w0d0h0m chain=forward comment=\n    "night_rdp_blacklist" connection-state=new disabled=\n    yes dst-port=3389 protocol=tcp src-address-list=rdp_stage8<\/code><\/pre>\n
\nTashm\u00eb n\u00eb lidhjen e 8-t\u00eb, IP e sulmuesit d\u00ebrgohet n\u00eb list\u00ebn e zez\u00eb p\u00ebr nj\u00eb jav\u00eb. Bukuri!<\/p>\n
Po ashtu p\u00ebr t'i shtuar gj\u00ebrat q\u00eb tham\u00eb m\u00eb par\u00eb, shtoj nj\u00eb lidhje n\u00eb artikullin Wiki, me konfigurimin funksional p\u00ebr mbrojtjen e Mikrotik nga skanuesit e rrjetit. wiki.mikrotik.com\/wiki\/Drop_port_scanners<\/a><\/noindex><\/p>\n
N\u00eb pajisjet e mia, ky konfigurim funksionon s\u00eb bashku me rregullat e honeypot t\u00eb p\u00ebrshkruara m\u00eb lart, duke i plot\u00ebsuar ato mir\u00eb.<\/p>\n
UPD: Si\u00e7 sugjeruan n\u00eb komentet, rregulli i heqjes s\u00eb paketave \u00ebsht\u00eb zhvendosur n\u00eb RAW, p\u00ebr t\u00eb ulur ngarkes\u00ebn n\u00eb router.
\n
Burimi: habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"
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