Vulnerability Summary for the Week of September 18, 2017
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Vulnerability Report Attacks Bypassing Confidentiality in Encrypted PDF
Vulnerability Report Attacks bypassing confidentiality in encrypted PDF Jens M¨uller1, Fabian Ising2, Vladislav Mladenov1, Christian Mainka1, Sebastian Schinzel2, J¨orgSchwenk1 May 16, 2019 1Chair for Network and Data Security 2FH M¨unsterUniversity of Applied Sciences Abstract In this report, we analyze PDF encryption and show two novel techniques for breaking the confidentiality of encrypted documents. Firstly, we abuse the PDF feature of partially encrypted documents to wrap the encrypted part of the document within attacker-controlled content and therefore, exfiltrate the plaintext once the document is opened by a legitimate user. Secondly, we abuse a flaw in the PDF encryption specification allowing an attacker to arbitrarily manipulate encrypted content without knowing the cor- responding key/password. The only requirement is one single block of known plaintext, which we show is fulfilled by design. By using exfiltration channels our attacks allow the recovery of the entire plaintext or parts of it within an encrypted document. The attacks rely only on standard compliant PDF features. We evaluated our attacks on 27 widely used PDF viewers and found all of them vulnerable. 1 Contents 1 Background4 1.1 Portable Document Format (PDF) . .4 1.2 PDF Encryption . .6 1.3 PDF Interactive Features . .7 2 Attacker Model8 3 PDF Encryption: Security Analysis9 3.1 Partial Encryption . .9 3.2 CBC Malleability . 10 3.3 PDF Interactive Features . 12 4 How To Break PDF Encryption 14 4.1 Direct Exfiltration (Attack A) . 14 4.1.1 Requirements . 15 4.1.2 Direct Exfiltration through PDF Forms (A1) . 15 4.1.3 Direct Exfiltration via Hyperlinks (A2) . -
Volume 108, Issue 12
BObcaTS TEAM UP BU STUDENT WINS WITH CHRISTMAS MCIE AwaRD pg. 2 CHEER pg. 3 VOL. 108 | ISSUE NO.12| NOVEMBER 28TH, 2017 ...caFFEINE... SINCE 1910 LONG NIGHT AG A INST PROCR A STIN A TION ANOTHER SUCCESS Students cracking down and getting those assignments out of the way. Photo Credit: Patrick Gohl. Patrick Gohl, Reporter am sure the word has spread Robbins Library on Wednesday in the curriculum area. If you of the whole event. I will now tinate. I around campus already, ex- the 22nd of November. were a little late for your sched- remedy this grievous error and Having made it this far in ams are just around the cor- The event was designed to uled session you were likely to make mention of the free food. the semester, one could be led ner. ‘Tis the season to toss your combat study procrastination, get bumped back as there were Healthy snacks such as apples to believe, quite incorrectly, amassed library of class notes in and encourage students to be- many students looking for help and bananas were on offer from that the home stretch is more of frustration, to scream at your gin their exam preparation. It all to gain that extra edge on their the get go along with tea and the same. This falsehood might computer screen like a mad- started at 7:00PM and ran until assignments and exams. coffee. Those that managed be an alluring belief to grasp man, and soak your pillow with 3:00AM the following morn- In addition to the academic to last until midnight were re- hold of when the importance to tears of desperation. -
Darktable 1.2 Darktable 1.2 Copyright © 2010-2012 P.H
darktable 1.2 darktable 1.2 Copyright © 2010-2012 P.H. Andersson Copyright © 2010-2011 Olivier Tribout Copyright © 2012-2013 Ulrich Pegelow The owner of the darktable project is Johannes Hanika. Main developers are Johannes Hanika, Henrik Andersson, Tobias Ellinghaus, Pascal de Bruijn and Ulrich Pegelow. darktable is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. darktable is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with darktable. If not, see http://www.gnu.org/ licenses/. The present user manual is under license cc by-sa , meaning Attribution Share Alike . You can visit http://creativecommons.org/ about/licenses/ to get more information. Table of Contents Preface to this manual ............................................................................................... v 1. Overview ............................................................................................................... 1 1.1. User interface ............................................................................................. 3 1.1.1. Views .............................................................................................. -
Living Without Google on Android
Alternative for Google Apps on Android - living without Google on Android Android without any Google App? What to use instead of Hangouts, Map, Gmail? Is that even possible? And why would anyone want to live without Google? I've been using a lot of different custom ROMs on my devices, so far the two best: plain Cyanogenmod 11 snapshot on the Nexus 4[^1], and MIUI 2.3.2 on the HTC Desire G7[^2]. All the others ( MUIU 5, MIUI 6 unofficial, AOKP, Kaos, Slim, etc ) were either ugly, unusable, too strange or exceptionally problematic on battery life. For a long time, the first step for me was to install the Google Apps, gapps packages for Plays Store, Maps, and so on, but lately they require so much rights on the phone that I started to have a bad taste about them. Then I started to look for alternatives. 1 of 5 So, what to replace with what? Play Store I've been using F-Droid[^3] as my primary app store for a while now, but since it's strictly Free Software[^4] store only, sometimes there's just no app present for your needs; aptoide[^5] comes very handy in that cases. Hangouts I never liked Hangouts since the move from Gtalk although for a little while it was exceptional for video - I guess it ended when the mass started to use it in replacement of Skype and its recent suckyness. For chat only, check out: ChatSecure[^6], Conversations[^7] or Xabber[^8]. All of them is good for Gtalk-like, oldschool client and though Facebook can be configured as XMPP as well, I'd recommend Xabber for that, the other two is a bit flaky with Facebook. -
Vabavaralise Isemajutatava Pilvsalvestustarkvara Juurutamine Taltech It Kolledži Näitel
TALLINNA TEHNIKAÜLIKOOL Infotehnoloogia teaduskond Daniel Proode 178972IAAB VABAVARALISE ISEMAJUTATAVA PILVSALVESTUSTARKVARA JUURUTAMINE TALTECH IT KOLLEDŽI NÄITEL Bakalaureusetöö Juhendaja: Edmund Laugasson, MSc Tallinn 2020 Autorideklaratsioon Kinnitan, et olen kirjutanud oma bakalaureusetöö iseseisvalt ning seda ei ole kellegi teise poolt varem kaitsmisele esitatud. Kõik töö koostamisel kasutatud teiste autorite tööd, olulised seisukohad, kirjandusallikatest ja mujalt pärinevad andmed on töös korrektselt viidatud. Autor: Daniel Proode 18.05.2020 2 Annotatsioon Bakalaureusetöös uuritakse nelja erinevat isemajutatavat pilvsalvestustarkvara ning võrreldakse nende omadusi. Töö raames uuritakse üksnes antud tarkvarade tasuta versioone. Lisaks annab töö ülevaate isemajutatavate pilvsalvestustarkvarade olemusest ja hetkel TalTech IT Kolledžis kasutusel olevast pilvsalvestuslahendusest. Ühe uurimismeetodina on töös kasutusel küsitlus, mille käigus selguvad IT Kolledži üliõpilaste ning õppejõudude nõuded ja ootused uuele pilvsalvestuslahendusele. Töö analüüsiosas kirjeldatakse tarkvarade Nextcloud, ownCloud, Pydio ning Seafile omadusi ja võrreldakse neid tabelis. Samuti selgitatakse välja IT Kolledžile sobivaim pilvsalvestustarkvara, lähtudes küsitluses selgunud kooli üliõpilaste ning õppejõudude nõudmistest ja soovidest. Sobivaim tarkvara juurutatakse prototüübina virtuaalmasinale, mis asub IT Kolledži võrgus olevas serveris. Prototüüp ühendatakse Uni-ID ja IT Kolledžis kasutusel oleva pilvsalvestusteenusega. Küsitluses osalenud üliõpilastel -
Ghostscript and Mupdf Status Openprinting Summit April 2016
Ghostscript and MuPDF Status OpenPrinting Summit April 2016 Michael Vrhel, Ph.D. Artifex Software Inc. San Rafael CA Outline Ghostscript overview What is new with Ghostscript MuPDF overview What is new with MuPDF MuPDF vs Ghostscript MuJS, GSView The Basics Ghostscript is a document conversion and rendering engine. Written in C ANSI 1989 standard (ANS X3.159-1989) Essential component of the Linux printing pipeline. Dual AGPL/Proprietary licensed. Artifex owns the copyright. Source and documentation available at www.ghostscript.com Graphical Overview PostScript PCL5e/c with PDF 1.7 XPS Level 3 GL/2 and RTL PCLXL Ghostscript Graphics Library High level Printer drivers: Raster output API: Output drivers: Inkjet TIFF PSwrite PDFwrite Laser JPEG XPSwrite Custom etc. CUPS Devices Understanding devices is a major key to understanding Ghostscript. Devices can have high-level functionality. e.g. pdfwrite can handle text, images, patterns, shading, fills, strokes and transparency directly. Graphics library has “default” operations. e.g. text turns into bitmaps, images decomposed into rectangles. In embedded environments, calls into hardware can be made. Raster devices require the graphics library to do all the rendering. Relevant Changes to GS since last meeting…. A substantial revision of the build system and GhostPDL directory structure (9.18) GhostPCL and GhostXPS "products" are now built by the Ghostscript build system "proper" rather than having their own builds (9.18) New method of internally inserting devices into the device chain developed. Allows easier implementation of “filter” devices (9.18) Implementation of "-dFirstPage"/"-dLastPage" with all input languages (9.18) Relevant Changes to GS since last meeting…. -
Book-Of-Abstracts-Ordered-14.Pdf
Cloud Services for Synchronisation and Sharing (CS3) Book of Abstracts 28 - 30 January 2019 Roma, Italy https://doi.org/10.5281/zenodo.2545482 Cover page photo by DAVID ILIFF. License: CC-BY-SA 3.0 Editor: Belinda Chan (CERN) Publication date: 2019-01-24 Introduction This is the "Book of Abstracts" of the 5th CS3 (Cloud Services for Synchronisation and Sharing) conference (28-30 January 2019, Rome). The 5th edition of this conference marks an important milestone and there are some reflections that we would like to share with you. Five years ago, the CS3 community simply did not exist. Cloud storage technologies were a convenient extension of traditional storage technologies. Universities, National Research and Education Networks, and Research Centres were all exploring this area by adopting solutions proposed by a few innovative emerging companies, many of them from Europe. Cloud storage was immediately a success: all the installations have grown by leaps and bounds as the number of active users and number of files per user increased. More importantly though, cloud storage has become a vital part of our day-by-day activities. This success triggered the need for reflection on scalability, data durability and overall sustainability – all of these areas are still progressing, as illustrated by the abstracts collected at this conference. At the time of the first conference, the actual potential was probably not entirely clear but the conference became the forum to exchange experiences and ideas, and to advance together in this new and exciting domain. Five years hence, and the understanding of cloud storage technology, its maturity and the extension of its usage is continuously increasing. -
Web Vulnerabilities (Level 1 Scan)
Web Vulnerabilities (Level 1 Scan) Vulnerability Name CVE CWE Severity .htaccess file readable CWE-16 ASP code injection CWE-95 High ASP.NET MVC version disclosure CWE-200 Low ASP.NET application trace enabled CWE-16 Medium ASP.NET debugging enabled CWE-16 Low ASP.NET diagnostic page CWE-200 Medium ASP.NET error message CWE-200 Medium ASP.NET padding oracle vulnerability CVE-2010-3332 CWE-310 High ASP.NET path disclosure CWE-200 Low ASP.NET version disclosure CWE-200 Low AWStats script CWE-538 Medium Access database found CWE-538 Medium Adobe ColdFusion 9 administrative login bypass CVE-2013-0625 CVE-2013-0629CVE-2013-0631 CVE-2013-0 CWE-287 High 632 Adobe ColdFusion directory traversal CVE-2013-3336 CWE-22 High Adobe Coldfusion 8 multiple linked XSS CVE-2009-1872 CWE-79 High vulnerabilies Adobe Flex 3 DOM-based XSS vulnerability CVE-2008-2640 CWE-79 High AjaxControlToolkit directory traversal CVE-2015-4670 CWE-434 High Akeeba backup access control bypass CWE-287 High AmCharts SWF XSS vulnerability CVE-2012-1303 CWE-79 High Amazon S3 public bucket CWE-264 Medium AngularJS client-side template injection CWE-79 High Apache 2.0.39 Win32 directory traversal CVE-2002-0661 CWE-22 High Apache 2.0.43 Win32 file reading vulnerability CVE-2003-0017 CWE-20 High Apache 2.2.14 mod_isapi Dangling Pointer CVE-2010-0425 CWE-20 High Apache 2.x version equal to 2.0.51 CVE-2004-0811 CWE-264 Medium Apache 2.x version older than 2.0.43 CVE-2002-0840 CVE-2002-1156 CWE-538 Medium Apache 2.x version older than 2.0.45 CVE-2003-0132 CWE-400 Medium Apache 2.x version -
Accessibilité & Adaptabilité Des Ressources Numériques Pour L'école
Accessibilité & Adaptabilité des Ressources Numériques pour l’École 1 - FORMATS, NORMES, STANDARDS, LANGAGES Version 1 Date : novembre 2015 A2RNE : Accessibilité et Adaptabilité des Ressources Numériques pour l’École Version 1 Formats Normes Standards Langages Novembre 2015 1 - FORMATS, NORMES, STANDARDS, LANGAGES ............................................................................................. 1 1. INTRODUCTION ................................................................................................................................ 4 1.1. Contexte ............................................................................................................................ 4 1.2. Objectif du document ............................................................................................................ 4 1.3. Organisation du document ...................................................................................................... 4 2. STANDARDS INTERNATIONAUX ............................................................................................................. 6 2.1. W3C et WAI ........................................................................................................................ 6 WCAG 1.0 ........................................................................................................................... 6 WCAG 2.0 ........................................................................................................................... 6 ARIA .................................................................................................................................. -
Iq-Analyzer Manual
iQ-ANALYZER User Manual 6.2.4 June, 2020 Image Engineering GmbH & Co. KG . Im Gleisdreieck 5 . 50169 Kerpen . Germany T +49 2273 99 99 1-0 . F +49 2273 99 99 1-10 . www.image-engineering.de Content 1 INTRODUCTION ........................................................................................................... 5 2 INSTALLING IQ-ANALYZER ........................................................................................ 6 2.1. SYSTEM REQUIREMENTS ................................................................................... 6 2.2. SOFTWARE PROTECTION................................................................................... 6 2.3. INSTALLATION ..................................................................................................... 6 2.4. ANTIVIRUS ISSUES .............................................................................................. 7 2.5. SOFTWARE BY THIRD PARTIES.......................................................................... 8 2.6. NETWORK SITE LICENSE (FOR WINDOWS ONLY) ..............................................10 2.6.1. Overview .......................................................................................................10 2.6.2. Installation of MxNet ......................................................................................10 2.6.3. Matrix-Net .....................................................................................................11 2.6.4. iQ-Analyzer ...................................................................................................12 -
File Transfer Protocol Mini Project
File Transfer Protocol Mini Project Zacherie feminize alfresco while outstretched Ernesto vesicates haggishly or scrumps barbarously. Sudanese existingand repand and Shaunresolvable always Eugene monopolises overtired authentically quite hereditarily and burble but devolves his metamorphism. her concubine Wanier perchance. Aloysius still inflict: Tanum earth station in an application can you are usually intended for usability reasons, file transfer protocol mini project for all of this section: page of understanding and! Normally goes beyond make have access to view general status codes should be an existing files with dynamicallygenerated html pages can open. Fully correspond to provide control of the solution. Later development on the use the task depends on the functionality of data nodes exchange of os, or personal emails and. This command lines are not likely a byte size and conduct file. Some systems consortium, the file transfers are just simple way that file transfer protocol mini project is open source system, copy of these funs have. The discussion of data transfer of new file management programs communicating data applications do not have record keys: a program written as a basic client. It should be transferred to server is distributed between people who need a series of. Should not have a number of the other flags in web server able to. The build artifacts and demands resources for file transfer protocol mini project. Api management and hides its contents from duplicate files easily implemented in implementations without copying files. The service and its host computers would send requests as file transfer protocol mini project. The desktop widgetsis also required available to a look at marginal cost of data between computers often an experiment in mobile devices, etc by default. -
CODE by R.Mutt
CODE by R.Mutt dcraw.c 1. /* 2. dcraw.c -- Dave Coffin's raw photo decoder 3. Copyright 1997-2018 by Dave Coffin, dcoffin a cybercom o net 4. 5. This is a command-line ANSI C program to convert raw photos from 6. any digital camera on any computer running any operating system. 7. 8. No license is required to download and use dcraw.c. However, 9. to lawfully redistribute dcraw, you must either (a) offer, at 10. no extra charge, full source code* for all executable files 11. containing RESTRICTED functions, (b) distribute this code under 12. the GPL Version 2 or later, (c) remove all RESTRICTED functions, 13. re-implement them, or copy them from an earlier, unrestricted 14. Revision of dcraw.c, or (d) purchase a license from the author. 15. 16. The functions that process Foveon images have been RESTRICTED 17. since Revision 1.237. All other code remains free for all uses. 18. 19. *If you have not modified dcraw.c in any way, a link to my 20. homepage qualifies as "full source code". 21. 22. $Revision: 1.478 $ 23. $Date: 2018/06/01 20:36:25 $ 24. */ 25. 26. #define DCRAW_VERSION "9.28" 27. 28. #ifndef _GNU_SOURCE 29. #define _GNU_SOURCE 30. #endif 31. #define _USE_MATH_DEFINES 32. #include <ctype.h> 33. #include <errno.h> 34. #include <fcntl.h> 35. #include <float.h> 36. #include <limits.h> 37. #include <math.h> 38. #include <setjmp.h> 39. #include <stdio.h> 40. #include <stdlib.h> 41. #include <string.h> 42. #include <time.h> 43. #include <sys/types.h> 44.