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** Description changed:

- ---
- 
- This issue is being treated as a potential security risk under embargo.
- Please do not make any public mention of embargoed (private) security
- vulnerabilities before their coordinated publication by the OpenStack
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- report, and any proposed fixes should be added as to the bug as
- attachments.
- 
- ---
- 
  The error reporting in Horizon for creating a new network is susceptible
  to a Cross-Site Scripting vulnerability. Example request/response:
  
  Request
  
  POST /project/networks/create HTTP/1.1
  ...
  
  csrfmiddlewaretoken=6MGUvp62x8c6GU7TfRXQLZERmJuN7nXT&net_profile_id=<img
  src=zz
  onerror=alert(1)>&net_name=foobar&admin_state=True&with_subnet=on&subnet_name=&cidr=&ip_version=4&gateway_ip=&enable_dhcp=on&ipv6_modes=none%2Fnone&allocation_pools=&dns_nameservers=&host_routes=
  
  Response
  
  HTTP/1.1 200 OK
  Date: Tue, 03 Feb 2015 20:42:28 GMT
  Server: Apache/2.4.10 (Debian)
  Vary: Accept-Language,Cookie
  X-Frame-Options: SAMEORIGIN
  Content-Language: en
  Keep-Alive: timeout=5, max=100
  Connection: Keep-Alive
  Content-Type: application/json
  Content-Length: 209
  
  {"has_errors": true, "errors": {"createnetworkinfoaction":
  {"net_profile_id": ["Select a valid choice. <img src=zz
  onerror=alert(1)> is not one of the available choices."]}},
  "workflow_slug": "create_network"}
  
  In the above example if the net_profile_id does not exist, the json
  response contains the user input and Horizon echo's it out. Although it
  would be difficult to exploit this vulnerability because an attacker
  would need to manipulate the hidden HTML net_profile_id parameter or the
  POST body, Horizon should still HTML encode the output.

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https://bugs.launchpad.net/bugs/1417762

Title:
  XSS in network create error reporting

Status in OpenStack Dashboard (Horizon):
  New
Status in OpenStack Security Advisories:
  Won't Fix

Bug description:
  The error reporting in Horizon for creating a new network is
  susceptible to a Cross-Site Scripting vulnerability. Example
  request/response:

  Request

  POST /project/networks/create HTTP/1.1
  ...

  csrfmiddlewaretoken=6MGUvp62x8c6GU7TfRXQLZERmJuN7nXT&net_profile_id=<img
  src=zz
  onerror=alert(1)>&net_name=foobar&admin_state=True&with_subnet=on&subnet_name=&cidr=&ip_version=4&gateway_ip=&enable_dhcp=on&ipv6_modes=none%2Fnone&allocation_pools=&dns_nameservers=&host_routes=

  Response

  HTTP/1.1 200 OK
  Date: Tue, 03 Feb 2015 20:42:28 GMT
  Server: Apache/2.4.10 (Debian)
  Vary: Accept-Language,Cookie
  X-Frame-Options: SAMEORIGIN
  Content-Language: en
  Keep-Alive: timeout=5, max=100
  Connection: Keep-Alive
  Content-Type: application/json
  Content-Length: 209

  {"has_errors": true, "errors": {"createnetworkinfoaction":
  {"net_profile_id": ["Select a valid choice. <img src=zz
  onerror=alert(1)> is not one of the available choices."]}},
  "workflow_slug": "create_network"}

  In the above example if the net_profile_id does not exist, the json
  response contains the user input and Horizon echo's it out. Although
  it would be difficult to exploit this vulnerability because an
  attacker would need to manipulate the hidden HTML net_profile_id
  parameter or the POST body, Horizon should still HTML encode the
  output.

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