Cisco Bug: CSCtd54234 - Chunked encoding in HTTP POST method not handled properly
Nov 09, 2016
- Cisco ASA 5500-X Series Firewalls
Known Affected Releases
Symptom: Two issues with this case - 1. CSC does not support chunked encoding when used with POST message 2. iwss-process runs into an infinite loop when a POST with chunked message is used. Conditions: Procedure to reproduce the problem 1. From netcat paste the following from a client machine- % nc cometservp1.pb.com 80 POST /t3cometserver.asp HTTP/1.1 Host: cometservp1.pb.com Transfer-Encoding: chunked Content-Type: text/xml Expect: 100-continue CSC HTTP proxy process can go into a loop pegging CPU usage to 100%.
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