[
https://bro-tracker.atlassian.net/browse/BIT-1235?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jon Siwek updated BIT-1235:
---------------------------
Fix Version/s: 2.4
> HTTP multipart POST request alters file contents
> ------------------------------------------------
>
> Key: BIT-1235
> URL: https://bro-tracker.atlassian.net/browse/BIT-1235
> Project: Bro Issue Tracker
> Issue Type: Problem
> Components: Bro
> Affects Versions: 2.3
> Environment: CentOS 6.5, file extract analyzer
> Reporter: Brian O'Berry
> Fix For: 2.4
>
> Attachments: bro-2.3-HTTP.patch, gdb.log, upload-api-http.pcap
>
>
> HTTP POST multipart processing converts bare CR or LF chars to CRLF pairs,
> corrupting most files when extracted with Files::ANALYZER_EXTRACT. This is
> clear in the attached gdb.log, which has a backtrace that shows a buffer with
> the start of a PDF file entering MIME/HTTP entity processing at frame 25, and
> emerging with LF chars converted to CRLF at frame 6.
> Also attached are the pcap file associated with the backtrace, and an initial
> patch that we've barely begun to test. A point of concern with the patch is
> that it changes a weird.log entry from "line_terminated_with_single_CR" to
> "http_no_crlf_in_header_list". It does enable Files::ANALYZER_EXTRACT to
> correctly extract the PDF file from the attached pcap.
> Please let me know if we can provide anything else to help with this.
--
This message was sent by Atlassian JIRA
(v6.4-OD-04-006#64001)
_______________________________________________
bro-dev mailing list
[email protected]
http://mailman.icsi.berkeley.edu/mailman/listinfo/bro-dev
