Error : Request header is too large in CA Access Gateway (SPS)
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Error : Request header is too large in CA Access Gateway (SPS)

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Article ID: 232317

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Updated On:

Products

SITEMINDER CA Single Sign On Secure Proxy Server (SiteMinder)

Issue/Introduction

 

When Running CA Access Gateway (SPS), when request have large headers,
CA Access Gateway (SPS) returns these errors when sending the request
to the backend server.

    INFO: Error parsing HTTP request header
     Note: further occurrences of HTTP request parsing errors will be logged at DEBUG level.
    java.lang.IllegalArgumentException: Request header is too large.

The browser gets error 400.

 

Environment

 

CA Access Gateway (SPS) 12.8SP3 on Windows 2016;

 

Cause

 

The backend application runs on the ProxyUI interface 127.0.0.1:8080,
which is out of support as per documentation (1).

The backend server returns error 400 bad request :

fiddler.saz

  GET http://mysps.mydomain.com:20013/myApp/vars.jsp

  Status 400 Bad Request

  Response size : 510 bytes
  Request size : 6.21kb

  JSESSIONID
  SMNTLMCOOKIE
  SMSESSION
  SWSESSION
  XMSESSION
  XSWSESSION

SPS sends the full data correctly :

httpclient0.log :

  Dec 20, 2021 10:19:33 AM org.apache.http.wire wire
  FINE:  >> "GET /myApp/vars.jsp HTTP/1.1[\r][\n]"
  Dec 20, 2021 10:19:33 AM org.apache.http.wire wire
  FINE:  >> "host: mysps.mydomain.com:20013[\r][\n]"

  FINE:  >> "SM_SERVERSESSIONSPEC: 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[\r][\n]"
  Dec 20, 2021 10:19:33 AM org.apache.http.wire wire
  FINE:  >> "cookie: JSESSIONID=B9B6DF3EC0E17F7175FD61825FE309F3; SMNTLMCOOKIE=3BL5w2/XqLTypfworOokSqCdUoVUVCUofyc3K1Rs2A4ib/V51741dUfqrVHqsZqEcR4G/H/+ktGWEyI8n516L9dui5myGxoS;  SWSESSION=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; 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XSWSESSION=n+NiYbnnZwquoBLPHBlW1ihQqFwAOesjELLyZjTaUOktuztDZhH1uG3uVCe4/Vq5laUS8KVQPOTAvJ9BpC1ey4yoR2KbclKwQmXrePIocKQ88ff0mR0b/mQLhFs8kx31maen9mmxTnitby9gC3lojeoimNNKPD3Y7lRPpmKWObcNU8Sj0uGy5lzO6fJIXIO1ipDPjxzTez+nVZ5wBZGvRrLuF5A9+XyegwGitWtemRmnvKloClNkKtuL7lcMSWjHR/OQ/o6TbO7pIqoU9AfmQBLe2BU20RoF3hgKJiYsFLu8lMWLag44q/AF0iPcpHUQ/ameoX1lgeEqZqkTqvl6zUzChAoRkTvO/mDj3ocb5/ZJZI4TkdJTVlrhGQDZRqLc+oApwFo3Z+qkX4ylKfDboLxya1t3j6bGmc27bDUvmLTWRoiZYbetfmpvJs/4EC/lQPotbQgKCnBQWkwglDjishDt8sNg5YxFsQimk3nAjjoVKAxF2TnHxV3kIe2K5rUFp4l5ylTiGZ73QZdcW0wJPAyHdqG6ScryA3pdpFEy07vPT6o3+1mOX9Cj2YMM11UwiUzm28EF4wU8HJDHjCr23gux34zxpHSrqvlGOzQCkfBuCdN39K8en68cPBGI5As9GEif/g5nL59qdTxoFQ41UP9bmxraBtlhp2FSbMc+pOKIOH0WsCH5hf0X0odSoJwwk8Ejt1OcOAmwquXeUz/YpzWmOMyKaZrpFIG49Jle7VmrUu5I2QmmwIkJahzwO1UnCKx0P7/xy27celDSuaHPskSpdfGnr/TBcQ3vPkat6o+6e5jiAZgeW+2c8vOL1Xho1lwOF6J+mD0sqn1DT9rET31CPoxD0OB/z4IaIvijpkUjkpGeXiAEH5whT7i2cSq03sBJyP5ByXHAPAVggSFF2/XDcmGWvnZOfYDR2Ul6y5IeS2FTxBXbDw8Kc2s3BAGS5Ow0ZLcbdPrX7F03U3HW2JwPBblf7rU2Qg/IUwXmoh9/58DFDrwlmGmPXRzq/ywOoltKLj3bPLu2KWVrFGQFxuzFC9bQluzQ3XnLwanpFb04mDr1ZRZXUlL59tSNLcyZI1ctPMPlzq8c+pvHqHgRYLZ7PFhO8/kOxYDS4Whk9EdCjw6zqwlGiOUiNXA0vx3iybfqlAWiMT2UOmb8f2+2Dl/AZAI5Pu9DUtokBAkYKQxfgZYE/gPkdVrBtEcWaKTmA/EVuEgP0LbpkDq7CiisQFtbXQiq/f7njlVpnOuqwL/2ANFP7FYvOhef0D5xGgXt9liHhagM0enJjHHQw9Sf5sQZiN6rOZOEvYOAVA3QzlRDX3otiQKmNnPmSmpyCJByAWFXSNryBsavfhnhZiobjtiTtOXfgMWer2mqSITKgJosoB6pIAZ427yfu/7i7ccjOndpmv2VR12y19pEKBtJPvsNqm2YxYxYiArtjJjEvcDJkQokV2vc+Rj/gaVVOoXh; SMSESSION=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[\r][\n]"

  Dec 20, 2021 10:19:33 AM org.apache.http.headers sendRequestHeader
  FINE: >> SM_SERVERSESSIONSPEC: 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
  Dec 20, 2021 10:19:33 AM org.apache.http.headers sendRequestHeader
  FINE: >> cookie: JSESSIONID=B9B6DF3EC0E17F7175FD61825FE309F3; SMNTLMCOOKIE=3BL5w2/XqLTypfworOokSqCdUoVUVCUofyc3K1Rs2A4ib/V51741dUfqrVHqsZqEcR4G/H/+ktGWEyI8n516L9dui5myGxoS;  SWSESSION=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; 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  Dec 20, 2021 10:19:33 AM org.apache.http.wire wire
  FINE:  << "HTTP/1.1 400 Bad Request[\r][\n]"
  Dec 20, 2021 10:19:33 AM org.apache.http.wire wire
  FINE:  << "Transfer-Encoding: chunked[\r][\n]"
  Dec 20, 2021 10:19:33 AM org.apache.http.wire wire
  FINE:  << "Date: Mon, 20 Dec 2021 09:19:33 GMT[\r][\n]"
  Dec 20, 2021 10:19:33 AM org.apache.http.wire wire
  FINE:  << "Connection: close[\r][\n]"
  Dec 20, 2021 10:19:33 AM org.apache.http.wire wire
  FINE:  << "Server: Apache-Coyote/1.1[\r][\n]"
  Dec 20, 2021 10:19:33 AM org.apache.http.wire wire
  FINE:  << "[\r][\n]"
  Dec 20, 2021 10:19:33 AM com.ca.proxy.apache.httpclient.conn.SPSConnection receiveResponseHeader
  FINE: Receiving response: HTTP/1.1 400 Bad Request
  Dec 20, 2021 10:19:33 AM org.apache.http.headers receiveResponseHeader
  FINE: << HTTP/1.1 400 Bad Request
  Dec 20, 2021 10:19:33 AM org.apache.http.headers receiveResponseHeader
  FINE: << Transfer-Encoding: chunked
  Dec 20, 2021 10:19:33 AM org.apache.http.headers receiveResponseHeader
  FINE: << Date: Mon, 20 Dec 2021 09:19:33 GMT
  Dec 20, 2021 10:19:33 AM org.apache.http.headers receiveResponseHeader
  FINE: << Connection: close
  Dec 20, 2021 10:19:33 AM org.apache.http.headers receiveResponseHeader
  FINE: << Server: Apache-Coyote/1.1
  Dec 20, 2021 10:19:33 AM org.apache.http.wire wire
  FINE:  << "0[\r][\n]"
  Dec 20, 2021 10:19:33 AM org.apache.http.wire wire
  FINE:  << "[\r][\n]"

The backend application is the ProxyUI application listing on port 8080 : 

trace.log :

  [12/20/2021][10:19:33][3044][33104][7622a208-ee226d21-11686ce3-e7b00ca5-b1dd336d-5b]
  [SmProxyRules.processRules][Dispatching to service FORWARD with url 
  http://127.0.0.1:8080/myApp/vars.jsp][][][][][]

  [12/20/2021][10:19:33][3044][33104][7622a208-ee226d21-11686ce3-e7b00ca5-b1dd336d-5b]
  [Noodle::service][Method is: GET Content length is: 0][][][][][]

  [12/20/2021][10:19:33][3044][33104][7622a208-ee226d21-11686ce3-e7b00ca5-b1dd336d-5b]
  [execute][Got protocol version HTTP][][][][][]

  [12/20/2021][10:19:33][3044][33104][7622a208-ee226d21-11686ce3-e7b00ca5-b1dd336d-5b]
  [execute][Sending request to backend = 127.0.0.1:8080 url = 
  http://127.0.0.1:8080/myApp/vars.jsp][][][][][]

  [12/20/2021][10:19:33][3044][33104][7622a208-ee226d21-11686ce3-e7b00ca5-b1dd336d-5b]
  [requestConnection(): ][Get connection: {}->http://127.0.0.1:8080, timeout = 180000]
  [][][][][]

  [12/20/2021][10:19:33][3044][33104][7622a208-ee226d21-11686ce3-e7b00ca5-b1dd336d-5b]
  [openConnection()][Connecting to /127.0.0.1:8080][][][][][]
 
  [12/20/2021][10:19:33][3044][33104][7622a208-ee226d21-11686ce3-e7b00ca5-b1dd336d-5b]
  [execute][Response status code from backend webserver is 400][][][][][]

  [12/20/2021][10:19:33][3044][33104][7622a208-ee226d21-11686ce3-e7b00ca5-b1dd336d-5b]
  [Noodle::doGet][Noodle.proxyRequest succeeded.  Writing out response data if available]
  [][][][][]

  [12/20/2021][10:19:33][3044][33104][7622a208-ee226d21-11686ce3-e7b00ca5-b1dd336d-5b]
  [releaseConnection(): ][Released connection is not reusable.][][][][][]

server.conf :

 <localapp>
  enablelocalapp="yes"

  #Define the http & https listeners for LocalApplications 
  #Default Value for local.host=*,local.http.port=8080
  #* indicates to listen on all available interfaces present
  # on local system
  #Note: If ipadress / host name typed incorrectly or provided
  #input is not resolvable by java then SPS listens on all 
  #interfaces available on local system
  local.host=*
  local.http.port=8080

 

Resolution

 

- Set up the application on a backend server not on the CA Access Gateway itself as it isn't designed for that sake:

 

Additional Information

 

(1)

    Product Limitations

      Access Gateway does not support local content. The ability to place
      content on Access Gateway is not exposed, and Access Gateway does not
      support proxy rules for providing access to local content.

      Access Gateway does not support having the Web server on the same
      system as Access Gateway. If the two are set up on the same system,
      the Web server is accessible from the Internet. Security is not sure
      with this configuration.

    https://techdocs.broadcom.com/us/en/symantec-security-software/identity-security/siteminder/12-8/implementing/implementing-access-gateway/access-gateway-architecture-introduced.html