Open source is a term used for software whose source code is made available. Software distributed under Open source license allow the users to study, debug and improve the software with certain rights preserved for the copyright holder.

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Open Source vs Closed Source Systems

My understanding is that open source systems are commonly believed to be more secure than closed source systems. Reasons for taking either approach, or combination of them, include: cultural norms, ...
31
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Can you prove that an open source program is running the same code that it claims to be? [duplicate]

So if a group has made open source software, and the source code is available on github, and is bundled with an executable in their main download, can it be proven that the executable is compiled from ...
28
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8answers
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Is it safer to use less heard of software than popular software?

Is it good policy to use non-mainstream applications, or does it depend? For example is it better to use a less popular browser, media player or operating system as it is less likely a target for ...
26
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11answers
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What is the point of using an open source and secure OS if you are running it on a machine with closed source firmware?

I'm very interested in the OpenBSD OS, as it currently seems to me to be the option that takes security more seriously than its contemporaries. But as I was reading about it, it occurred to me that ...
18
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2answers
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FOSS Enterprise Password Management Solution [closed]

Can anyone recommend a F/OSS enterprise password management solution on/around the same level as something like Cyber-Ark? Specifically, something along the lines of a standard password manager, ...
13
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8answers
898 views

Trust Issues Relative to Open Source

Two separate discussions have very recently opened my eyes to an issue I had not considered – how to confirm the Open Source binary one uses is based on the published source code. There is a large ...
13
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3answers
321 views

open source software security rating — 3rd-party authority

A client is asking my company to write up internal standards that open source software must meet before we will approve it for use on our workstations. Our policy has always been subjective and hard ...
13
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3answers
896 views

What are the security implications of 'open-source' vs. 'source-available'?

In light of the current fiasco surrounding TrueCrypt, I have received considerable criticism from current clients and peers in the IT industry for my continued support of the open-source model. Such ...
12
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3answers
9k views

Free/Libre software to handle TCG OPAL 2.0-compliant Self-Encrypting Drives (SEDs)?

I'm in search of a free/libre software that is able to handle OPAL (2.0)-compliant SEDs (i.e. manage the setting of Pre-Boot Authentification (PBA) environment, encryption keys...). It could be a ...
11
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3answers
2k views

Security related code in Open Source projects?

I have recently heard that most of the PHP code is confidential, because if attackers know your database structure or the hash function used to encrypt the passwords, there is higher chances of a ...
11
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7answers
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How are open-sourced operating systems and software kept secure?

I have been wondering about his for awhile. I have Linux running on a PC at home. I had a jailbroken iPhone. They both have attributes that make them very attractive, and they are also FREE! But I ...
11
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4answers
3k views

Tool for public key cryptography where password is the private key?

Is there any free & open source tool for public key cryptography, where the private key is just a chosen password? Here is what I need: I want to make backups every hour using a script I want ...
9
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4answers
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How is Tor secure despite being open source?

If Tor is open source (and thus its process of concealing your IP is known), then how does it keep anything secure? Couldn't someone look at the source code and figure out how to reverse the routing ...
9
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4answers
197 views

How to trust ICs?

While it is theoretically possible to thoroughly examine the source code of Open Source Software to check for backdoors (neglecting a Ken Thompson hack), and given sufficiently adequate knowledge in ...
9
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1answer
5k views

What is real-world impact of CVE-2016-0728 (Linux Kernel Vulnerability)

Today emerged report about another serious vulnerability in opensource world, CVE-2016-0728. It is local privilege escalation in Linux kernel 3.8+. What are the the possible real-world exploitation, ...
8
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2answers
3k views

How do open source projects handle secure artifacts?

Specifically, how are things like keystores handled, or other items needed to build or run an app? In my case, I have a Chrome OS app that requires a keystore to build and publish to the Chrome Web ...
8
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2answers
1k views

Looking for an open risk assessment methodology

I'm looking for a fully open quantitative risk assessment methodology. Most of the methodologies have usage or licensing restrictions placed upon them. I define open as methodology covered by ...
7
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5answers
674 views

Is it safer to compile open source code vs simply running the binary?

I understand that with OpenSource software, my milage may vary based on the trust of the author and the distribution platform they use (Codeplex, Git, or private server). Oftentimes a FOSS website ...
7
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3answers
568 views

I work on an open source project. Is there a “standard” to reporting security vulnerabilities that we can use?

I work on an (intentionally undisclosed) open source project. To the best of my knowledge, we do not have a discoverable policy on reporting security vulnerabilities. Rails has their own policy ...
7
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2answers
70 views

Searching vulnerabilities via similar code comparison. Is it a viable attack vector?

Consider the following scenario: the attacker scans (optimally automatically) open codebases (eg. GitHub) for vulnerable code fragments by checking bug reports and patches. the attacker scans for ...
6
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3answers
584 views

Making database code open source

I am building a web app. It is currently not open source, but I am considering making it open source, so that others can fix bugs, improve it, so that others are not suspicious of my motives (fun to ...
6
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3answers
265 views

How much can we trust open source implementations of crypto (security) libraries?

In one of my projects I was choosing bcrypt or PBKDF2 for the KDF for passwords. I have read that bcrypt is generally more advanced and scrypt is even better. But I am using .NET platform where ...
6
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3answers
249 views

How could one detect if Apple/Google/etc. has modified a third party application distributed through their App Stores?

Are there any realistic methods for verifying that Apple or whoever has not tampered with third party application distributed through their App Store? You might for example have an open source ...
5
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3answers
642 views

Does (J-)SOX Forbid the Use of Open Source Software?

With Regard to Sarbanes Oxley and particularly The Japanese version thereof: Is it true that in order to comply with (J-)SOX you must have a support contract - and therefore a responsible party - for ...
5
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3answers
862 views

Open source web application penetration testing community

I do web development for a living but my real passion is security. I have worked with countless open source web application/framework and I have found vulnerabilities in most of them. The main cause ...
5
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4answers
893 views

Is compiling source code from github a big security risk?

I have several programs (Emacs el-get, oh-my-zsh and Homebrew) that occasionally load source code from github and compile it on my machine. Is this a big security concern? What can I do to prevent ...
5
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2answers
342 views

Drupal Disputed CVE Five Year Tempest – Open Source Security Shortfall?

Can someone add context to the subject issue? At first glance it appears to me this issue represents a fundamental shortfall in the forces encouraging secure coding in open source development. Is ...
5
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2answers
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How secure is EncFS compared to TrueCrypt?

If I choose the paranoia option for EncFS and for TrueCrypt I create containers using the encryption algorithm AES-Twofish-Serpent and the Hash Algorithm Whirlpool. Are both methods equally secure, ...
5
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2answers
1k views

What are good free opensource tools for helping in manual source code reviews? [closed]

I know tools that help in identifying security vulnerabilities in source code (static analysis tools), like Findbugs for Java or Pixy for PHP, but I would like to know good free opensource tools that ...
5
votes
1answer
52 views

Quantitative Security Analysis of Open Source Repos like CRAN and NPM

Is anyone aware of any quantitative analysis or research on the security of CRAN or NPM? e.g. How much malware is hosted, rate of compromise, speed to close, number of attack vectors, CERT reports ...
4
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3answers
174 views

How can you know what is distributed with your Linux

I'm curious, in theory, how can one know if for example kernel that is distributed with Ubuntu Linux is really what is on https://github.com/torvalds/linux and not some modified kernel which contains ...
4
votes
3answers
4k views

Could I delete .csr files when the key is signed by CA

I'm creating my own openvpn server. The Certificate authority is located on a separated host. There is two kind of clients: which that just send a .csr and to which i send the .crt as an answer and ...
4
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1answer
211 views

auditing open source compiler binaries for trojans

It is a well known vulnerability that a properly altered compiler binary can transfer itself to new binaries of the compiler, and still be entirely absent from the source code. But how real is this ...
4
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2answers
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Is there any way to use Nuget securely?

Visual Studio now includes a Package Manager that downloads and updates software packages from the internet. The common name for this is "Nuget" The problem I have is that anyone can pretend to be ...
3
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4answers
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Is it secure to have source code for website public? [duplicate]

I am working on a website and would like to have it under revision control. I have used git for earlier projects before and I like it. This project though is a website written in Django. I am totally ...
3
votes
5answers
4k views

Building a Security Training Simulation environment

My university is keen to build a security training simulation environment/platform and it will be a good learning experience for students. I Googled around to find out how it is built, but I only ...
3
votes
3answers
240 views

OAuth in open-source plugin

I'm designing an API server and client pair. Typically, I want the client to be in a WordPress plugin. I'd like to use OAuth or something similar to secure the requests. However, as you know, OAuth ...
3
votes
2answers
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Are there any free static analysis tools for C# / .NET code

A client recently asked me to perform a code review on C# code. As an independent contractor I was wondering what are the automated solutions out there where I would not have to break the bank to ...
3
votes
1answer
85 views

Is it more or less secure when an entity shares it's security procedures?

Right now I'm doing a work term through my school and they want me to write a report on something I've worked on. They are really serious about "proprietary reports" and reports requiring destruction ...
3
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3answers
1k views

failed login attempts analysis

Is there any open source project that logs all the failed login attempts over a period of time and gives me analysis of the same, the login failure is at windows or unix or mac user authentication ...
3
votes
1answer
38 views

Solution for Enterprise SW Eng. with Github and NPM [closed]

Can anyone share an architecture or framework that supports the use of Open Source software in enterprise software development environments? I'm seeking solutions to manage and mitigate the risk of ...
3
votes
1answer
480 views

Is it bad practice to add an encrypted private key to source control?

I understand that it is bad practice to add passwords and secret tokens to source control, with obvious implications arising if you are working on an open-source or related project. Rather, you ...
3
votes
2answers
845 views

In Visual Studio, what are the risks of simply opening an untrusted project? What are the mitigations?

I'm looking at the source code of some potentially hostile code. As usual, VS 2012 is giving me the security warning: "You should only open projects from a trustworthy source" ... "ask me for every ...
2
votes
7answers
1k views

Chrome vs Explorer - how to explain in plain words that open-source is better?

Why open-source is better in plain words? Yesterday I had a talk at a DIY bicycle workshop. There is a PC (running XP) that main application is checking emails (nothing really serious). I found it ...
2
votes
5answers
3k views

Website vulnerability scanner in Java && Open Source [closed]

I am working on a Web platform that must-need-should have a good level of security. Therefore, I am interested in a good quality tool to test my Web platform QA on security. My main programming ...
2
votes
1answer
310 views

How much are security tools audited?

Just an open question to the security community at large because... well... the phpMyAdmin thing has made me more paranoid than usual... Specifically, I'm thinking about Kali Linux (ex-BackTrack). ...
2
votes
2answers
154 views

Is it possible for an open-source website be secure?

Lets say I want to develop a website with a community, and so I want it to be open source. However, this website isn't going to be static. However, it seems that revealing the database connections ...
2
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2answers
64 views

Security updates FOSS/upstream policies: how are they chosen?

As you might know, with PEP 476, since Python 3.5 (backported to 3.4.3 and 2.7.9) tls certificates are now checked for their validity. Lack of validation leaves software exposed to mitm, so I think ...
2
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3answers
219 views

Browser as Honey-Pot, is there?

I'm watching all this movement around Metasploit project, the great number of different exploitation plugins, and thousands of exploit packs. Now, it is real truth, anyone could configure his own ...
2
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2answers
121 views

Risks associated with compiling open source projects

After reading this question about if it's safer to download and compile the source for an open source project or download and run the installer, I thought of another possible vulnerability: is it ...