Section 6
The challenge text reads:
This file was recovered from a scavenger.
(Look here for a listing of related files)
Expanding the archive results in a single file, called section6 which appears
to be a zip archive:
$ file section6
section6: Zip archive data, at least v2.0 to extract
$ unzip section6
<inflation text...>
$
I then take a glance at the images, which don’t contain any obvious hints. The page 1 thumbnail appears to be blank, and the page 6 thumbnail has some jumbled dots that might have been text at one point. Let’s see what all of these files are:
$ find . -type f | xargs file
./Documents/1/_rels/FixedDocument.fdoc.rels: XML 1.0 document, ASCII text, with no line terminators
./Documents/1/Metadata/Page1_PT.xml: XML 1.0 document, ASCII text, with very long lines, with CRLF line terminators
./Documents/1/Metadata/Page1_Thumbnail.JPG: JPEG image data, JFIF standard 1.01, resolution (DPI), density 96x96, segment length 16, baseline, precision 8, 181x256, frames 3
./Documents/1/Pages/_rels/1.fpage.rels: XML 1.0 document, ASCII text, with no line terminators
./Documents/1/Pages/1.fpage: exported SGML document, ASCII text
./Documents/1/FixedDocument.fdoc: XML 1.0 document, ASCII text, with no line terminators
./Documents/6/_rels/FixedDocument.fdoc.rels: XML 1.0 document, ASCII text, with no line terminators
./Documents/6/Metadata/Page6_Thumbnail.JPG: JPEG image data, JFIF standard 1.01, resolution (DPI), density 96x96, segment length 16, baseline, precision 8, 181x256, frames 3
./Documents/6/Metadata/Page6_PT.xml: XML 1.0 document, ASCII text, with very long lines, with CRLF line terminators
./Documents/6/Pages/_rels/6.fpage.rels: XML 1.0 document, ASCII text, with very long lines, with no line terminators
./Documents/6/Pages/6.fpage: exported SGML document, ASCII text, with very long lines
./Documents/6/FixedDocument.fdoc: XML 1.0 document, ASCII text, with no line terminators
./Documents/6/Resources/Fonts/E72969B2-88BF-426C-8490-3B3E9F1B3A83.odttf: data
./section6: Zip archive data, at least v2.0 to extract
./_rels/FixedDocumentSequence.fdseq.rels: XML 1.0 document, ASCII text, with no line terminators
./_rels/.rels: XML 1.0 document, ASCII text, with very long lines, with no line terminators
./Metadata/MXDC_Empty_PT.xml: XML 1.0 document, ASCII text, with very long lines, with no line terminators
./Metadata/Job_PT.xml: XML 1.0 document, ASCII text, with very long lines, with CRLF line terminators
./FixedDocumentSequence.fdseq: XML 1.0 document, ASCII text, with no line terminators
./section6.tar.gz: gzip compressed data, last modified: Fri Sep 7 18:28:35 2018, from Unix
./[Content_Types].xml: XML 1.0 document, ASCII text, with very long lines, with no line terminators
Looking through each of the text files, only ./Documents/6/Pages/6.fpage is very
interesting. Right away, at the end of most of the lines appears to be some sort
of ASCII art composed of hashes and periods. I removed all the superfluous text,
and replaced the periods with spaces.
##### ####### ##### ####### ### ###### ### #####
# # # # # # # # # ##### # # # # #
# # # # # # # # # # # # #
##### ##### # # ## ###### # # # # # #####
# # # # # # ##### # # # #
# # # # # # # # # # # # # # # #
##### ####### ##### # ### # # # ### #### #####
##### ####### ### # # #######
# # ##### # # # # # ## ## #
# # # # # # # # # # # #
#### # ##### ###### # # # # ######
# # # # # # # # # #
# # # # # # # # # # # #
# # # ####### ##### ### ##### ##### #####
####### #######
# ##### # ###
##### # # # # # #
# # # # # # #
# # # # ##### # ##
##### ####### # # #
# # # # # # #
# # # ##### ####### ###
#######
It’s a bit hard to read, but the flag is SECT{PR0J3KT_2501_15_R43L}. I
accidentally tried O instead of 0 for a couple of the words, but eventually
figured it out.