Questions tagged [source-code]

Security relative to source-code edition, protection and management.

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0answers
40 views

What coding language is used to make malware? [duplicate]

What coding language is used the most to make malware?
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2answers
85 views

Solutions for backing-up my codebase

I have a codebase that I've been keeping on Github that I don't want to worry about losing. I've intermittently backed up all the repos to an S3 instance, but this doesn't feel secure. If my Github ...
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40 views

How to prevent azure pipelines (yaml) from being used as an attack vector?

Let's say the following scenario exists: A git repository exists on Azure DevOps Repos. The repository uses yaml pipelines (azure-pipelines.yml). The repository has branch policies to ensure that ...
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1answer
55 views

What is the difference between “secure code review” and “secure static code analysis”?

What are the subtle differences in both - as one could say that both are almost the same... Static Code Analysis (also known as Source Code Analysis) is usually performed as part of a Code ...
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2answers
87 views

Does removing features from a library increase or reduce security risks?

Software libraries targetting resource constrained environments like embedded systems use conditional compilation to allow consumers to shave space and thus increase performance by removing unused ...
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1answer
40 views

Proving a software deployment's origin sourcecode [duplicate]

Is there a mechnism that can ensure a deployment (server that can give https responses) is built from the actual (public) sourcecode provided by another https URL? sourcecode from commit #10020 at ...
86
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6answers
20k views

How am I ever going to be able to “vet” 120,000+ lines of Composer PHP code not written by me? [duplicate]

I depend on PHP CLI for all kinds of personal and (hopefully, soon) professional/mission-critical "business logic". (This could be any other language and the exact same problem would still stand; I'm ...
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2answers
330 views

Is there a standard way to check if a requirements.txt has potential security issues? [closed]

Every open code repository has security issues. Attackers can use three ways to sneak malware in: Abuse typos: Create a package with a similar name, but the package is malware Malware + useful code: ...
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1answer
1k views

Path Manipulation Vulnerability

Currently I am working in code review process. I have few doubts regrading Path Manipulation Vulnerability. Some portion of the Path is already hard coded and with extension public class ReadFile { ...
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1answer
316 views

Exploit include_once in PHP Code

For a project we were asked to find and exploit the "Remote Code Injection" vulnerability of a web application. After hours of search (we have the source code of the web application as it is running ...
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3answers
409 views

Ken Thompson's compiler hack

I have gone through Ken Thompson's compiler hack paper; can't we just go through the compiler's source code and check for any backdoor, what was the article's point? Can we be sure that there are no ...
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1answer
1k views

PHP assert code injection

Not sure if in this case if it is possible to inject malicious code in $entityId and if it will be processed by php. $entityId = $_GET["name"]; public function getMetaData($entityId) { assert('...
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0answers
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Found possible malware code on site - contacted owner - what does it do? [duplicate]

Small question. I'm trying to figure out what a piece of code does that I came across on a website I visited. The website has obviously been hacked into, as there's a bunch of minified PHP code up ...
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5answers
6k views

How should source code security be checked?

How to check whether the source code of an open-source project contains no malicious content? For example, in a set of source code files with altogether 30,000 lines, there might be 1-2 lines ...
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1answer
146 views

How is compiling a program from source more secure?

When downloading compiled binaries for programs it is very important to check GPG signatures, Authenticode, hashes, etc. However, I often see people who say that compiling the code from source is the ...
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2answers
173 views

How to explain to our developer manager the benefits of using a linter also as a security feature?

Someone mentioned that linters would have helped not only for keeping the code looking better and friendlier, but also safer. ESlint has a rule to indicate, for example, to use {} which would have ...
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3answers
492 views

cases where companies suffered losses due to leaks of source code?

The damage associated with data breaches apparently caused Equifax to lose $4 billion in value and Facebook to lose about $50 billion, and even if not every dollar of those losses was due to the ...
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1answer
93 views

How curl provided source code that the browser did not?

I was playing a CTF and got stuck. When seeing the source code through web browser reveals nothing but when we send the request through curl it reveals out HIDDEN directory. How is it even possible? ...
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1answer
193 views

ISO 27001 and copying code from stackoverflow

So ever since we got certified, every time some code from stackoverflow is shown the ISO 27001 argument comes up "we can't copy code". As a dev, I have to say not allowing code form stackoverflow is ...
124
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8answers
22k views

Why is storing passwords in version control a bad idea?

My friend just asked me: "why is it actually that bad to put various passwords directly in program's source code, when we only store it in our private Git server?" I gave him an answer that ...
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1answer
335 views

Is hiding my Java desktop app inside a VM the best way to protect my Java source code?

I need to distribute a Java desktop app to the user. I am looking at different ways to protect my source code from reverse engineering. One method is to distribute a Virtual Machine (says Linux) ...
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2answers
149 views

Restricting source code exposure

Say you do not trust the data center technicians (or management) but have no other option than hosting your web application with them. Also, say you want to keep certain files inaccessible to people ...
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4answers
313 views

Is it possible to verify if a website is vulnerable to SQLi by viewing its source code?

I've heard the eval() function is vulnerable to SQLi. Can I check for vulnerabilities by simply viewing the website source code?
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0answers
74 views

Single-Page Application authentication and ISO 27001

I have a single-page javascript application that communicates with a .NET API running in IIS. Authentication is done after loading the application frontend, using an OAuth token from Office 365, ...
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2answers
1k views

Protecting Python source code on physical product?

How would you protect Python source code on a physical product (like a IoT device), which comes with Ubuntu installed on a mini-PC running Python code? Few methods we thought about: Compiling the ...
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1answer
466 views

How to secure PHP code for uploading avatar images?

I can bypass an avatar upload image verification process and upload a PHP file or any other extension binding a valid jpeg image. This is the code: if ($image->valid()) { $mimeType = $...
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2answers
760 views

How to make a well-known malicious programs undetectable by anti-virus solutions? [closed]

I want to make well-known malicious programs, like Mimikatz and Incognito, undetectable by anti-virus solutions. I have already tried various approaches myself, like packing the binary with UPX or ...
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1answer
859 views

How to Check Open Source Code for Vulnerabilities? [closed]

I am a member in bug bounty platform. There are some programs that make their source code available to the hackers to find vulnerabilities. For example, their PHP, JS, C++, or ruby code. I want to ...
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1answer
120 views

Secure PHP coding without frameworks

I am very new to PHP and some people said that writing PHP code without a framework is insecure. I am not sure about that! Is it possible to write highly secure code without any frameworks? If so, ...
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1answer
799 views

How to perform taint analysis on Java source code? [closed]

I want to perform taint analysis on java programs. I want to do this by finding functions calls, variable being modified, variable being accessed. So my question is how do I do this? I think Java ...
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2answers
745 views

Source Code analysis tools available? [closed]

In the near future I have to check the source code of a web application on security vulnerabilities. The web application mainly consists of PHP files and contains more than 300 files. Do you know ...
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1answer
171 views

Is it safe to commit ascii-armored symmetric private key to VCS?

What is the risk of committing an ascii-armored symmetric private key to VCS where the password lives outside of source control? This is a private closed-source repo. Two helpful topics: When can I ...
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0answers
25 views

Can files be retrieved from a VM instance state that was initially encrypted on a disk?

If I were to make a VM disk that was encrypetd, boot it, enter the encrypted passphrase and save the resulting 'image state' (of the running VM). Would this image have the 'encrypted' files easily ...
3
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1answer
207 views

How protected are files within a running encrypted VM on a possibly non secure hypervisor / host?

I've got a set of source code files (compiled C#) that I want to prevent direct read access to. The program will be running on the VM. I was thinking of storing these in an encrypted hard disk VM, the ...
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1answer
103 views

Making an API repository private vs public

So I am currently working on the API of an application that will be serving many users. Currently the only "sensitive" information being stored using the API is user emails and names. The application ...
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1answer
345 views

NodeJs app files integrity security check [closed]

What are the recommended methods or approaches to check NodeJs application (hosted on Linux server) files integrity check for security check? There are usually huge number of files in node_modules/, ...
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2answers
3k views

Buffer overflow due to strlen, strcpy, strcat

I'm new to secure code review. I know that strlen will calculates the length until it finds a null character. This is a part of a larger code. char* executeMount(char* password, char* path, int ...
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0answers
103 views

What web application vulnerabilites are most likey to be found in a source code review vs a grey box pentest?

What type of vulnerabilities would be found additional in a source code review vs a pentest? If my organization performs regular grey box pentests, do we really require to perform source code reviews?...
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2answers
285 views

Is it safe to open virus infected EXE with Telerik JustDecompile?

My antivirus software has detected an EXE downloaded from Internet as infected with virus Malwr.Heur.MSILPerseus. It has quarantined it. However, I wanted to decompile & study it's code. Will it ...
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2answers
102 views

What are the security trade-offs of using reproducible builds?

From reproducible-builds.org: Reproducible builds are a set of software development practices that create a verifiable path from human readable source code to the binary code used by computers. In ...
3
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1answer
5k views

WannaCry Source Code

Maybe this is a stupid question: Is the WannaCry source code public? https ://github.com/svenvdz/wannacry https: //github.com/Hackstar7/WanaCry https: //github.com/fadyosman/WannaCrySample I didn'...
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1answer
4k views

CVE-2017-7529 - Exploit details? [closed]

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7529 Where can I find the exploit details for this CVE? Usually sites like exploit-db.com include the PoC exploit for a given vuln but I can't ...
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1answer
114 views

Job applicants submit code, how do companies securely test it?

Applicants for software engineering jobs sometimes go through coding challenges as part of the interview process. The company may send applicants code and a development task with a deadline, and ...
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0answers
364 views

Was double pulsar's source code ever released?

Double Pulsar I can only see a binary at this address: https://github.com/x0rz/EQGRP_Lost_in_Translation News articles seem to not discriminate between the source code and the binary
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1answer
232 views

What are methods against code leakage for web applications?

I like to see the server-side web application layer as independent as possible, from the OS, from the server software like (Apache, nginx, IIS, et cetera). In order to easily grab the application and ...
0
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1answer
101 views

secure the code of a server physically rented to the client

My company rents a Debian server to the clients, that they have to connect to their own network. The server provides various services, an administration interface, and connects to the online service ...
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2answers
1k views

C++ standard library use in malware

I was recently analyzing the sources of ZeuS, ZeroAccess, Carberp and other professional malware and there was one thing which I found weird: The authors did not use the standard library std::-...
2
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2answers
2k views

Manually exploiting blind SQL injection in SELECT statement in X-Forwarded-For header

I am struggling exploiting this vulnerability in the code below: <?php ini_set('display_errors', 0); define("INDEX", 1); include '../db.php'; if(isset($_SERVER['HTTP_X_FORWARDED_FOR']) &&...
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1answer
39 views

Ensuring security for SharePoint hosted app (Office 365) [closed]

What strategy/approach/method should I use to ensure that programmers aren't deliberately including backdoor or accidentally creating security flaws? This is in regards to SharePoint hosted app in ...
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0answers
114 views

Is there a public malware sample of WannaCry? [duplicate]

Google security researcher Neel Mehta has famously identified code similarities between a sample of WannaCry and code used by North Korean hacker group Lazarus in 2015. Around the same time, another ...

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