Questions tagged [secure-coding]

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Why do I have to store a refresh token in db

As far as I know, JWT tokens are used for implementing 'stateless server'. But as I try to apply Jwt to my website that uses sessions and cookies for authentication, I found that most people store ...
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Lesser known security pitfalls in Python [closed]

I recently came across this article: https://blog.sonarsource.com/10-unknown-security-pitfalls-for-python, which describes security pitfalls in the python programming language that are less well known ...
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8 votes
6 answers
3k views

Does having no 'if' blocks in code mitigate side-channel attacks?

Looking through descriptions of Spectre and Meltdown it seems that speculative execution - the basis for these attacks - occurs only with branched code. Therefore, it seems logical to conclude that ...
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1 vote
1 answer
117 views

How to secure a code preview function?

Suppose there is an application which contained preview functionality, that means whatever the code (if it is PHP, HTML Python) the user writes, the user can preview the code. For ex: <?php echo &...
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3 answers
125 views

Security issues of exposing CRUD operations through a single API endpoint?

Imagine an API where all CRUD operations are done through the same POST HTTP Request but with different "action" values from request body. { "action":"[create|read|update|...
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111 views

What are the security considerations for coding a website with interactive scripts but no backend?

I am developing a simple grammar study website with Bootstrap 5, JQuery and Javascript. It will have interactive grammar quizzes and flashcards. I would like users to be able to type in answers to ...
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2 votes
1 answer
89 views

Sharing account verification tokens to third parties

This is a brief sanity check for myself to confirm whether or not the premise of the title is a good idea or not. Suppose we have an internal system for password reset or account verification. When a ...
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1 answer
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The difficulty of securely storing a password

We have an open source software that allows users to be created. The users are saved in an LDAP directory. The software connects to the LDAP as an administrator to write a new entry for a new user, or ...
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89 views

Allowing users to add arbitrary JavaScript in published articles

It would be nice if sites like Medium or Substack allowed users to not only add text, images, code snippets, etc., but also custom scripts that allowed readers to run a little piece of code. For ...
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What are reasonable level of security for a interal-use organization application hosted on the cloud?

I'm working on an small web application (Flask). The application is only for distributed internal usage, e.g. only users with credentials created by the organization will have access to the services ...
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How is .NET Core isolated storage "secured" on various OS's?

I'm looking for a consolidated list of how and where isolated storage is managed on each operating system... (Windows, MacOS, Linux, (mobile?), ...) Does such a list exist? What considerations might ...
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2 answers
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allowing users to add custom html/js code and show it only under another domain

I have a web app where I allow users to create a one-page portfolio using drag and drop, also I allow them to add custom HTML freely (basically any html or js code) I'm aware that I shouldn't allow ...
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1 answer
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Impact of the System Information Leak

Our application stored **e.printstacktrace()** in a log file, which is accessible to a specific user group. We need such detailed information for debugging purposes. As per the security team, they are ...
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40 votes
2 answers
29k views

Why is there no web client for Signal?

I’ve read about E2EE (end to end encryption) of Signal in web clients on a Signal Community discussion forum, and wonder why they say that the browser is insecure for E2EE and native apps are secure. ...
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0 answers
118 views

Secure code makes exploitation easier with CPU vulnerabilities?

I researched CPU vulnerabilities in the past, such as Specter and Meltdown. I read that one of those attacks is made easier if the code is a certain way. I cannot remember if it was related to being ...
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1 answer
112 views

Who (Designer or User) Should be Resposible for the Correct/Secure Usage of a Tool Intended for Developers/Admins? [closed]

There is a healthy debate around a series of stack overflow posts that refer to the "RunAs" command. Specifically the discussion is in reference to design decision that the folks at ...
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2 answers
142 views

How to find vulnerabilities in a program by looking at it's source code [closed]

Hello I have recently started learning Reverse Engineering. I often hear that it's much easier to find vulnerabilities in a program by looking at it's source code, but i don't know how to find them or ...
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1 answer
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Is my code safe enough to be publish on the server side? [duplicate]

I'm new here to ask a question. Sorry if my question had miss explanation. I just wanna ask if my PHP code is secure enough. Please find below is the source code: Get the ID for choosing the Value ...
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1 vote
2 answers
113 views

Regenerating CSFR token in AJAX requests

I would like to create a new token for each request and would like to us the following template- <script> var current_token=<?php echo $_SESSION['csrf_token']; ?> $....
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1 vote
0 answers
122 views

HSM: How multiple users are supported (using SAM)?

So far, I knew that traditional HSMs (Hardware Security Module) can be used to store key of a single user. But, recently, I came to know that newer HSMs have the capability to store keys of multiple ...
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1 vote
0 answers
113 views

Would my Java web application be vulnerable if I use a netty version that is vulnerable to CVE-2019-20444 and CVE-2019-20445?

These has been fixed in later versions of Netty ... but what is the risk of using an older (can't upgrade now) version that is vulnerable to to CVE-2019-20444 and CVE-2019-20445 ... is there really a ...
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44 votes
8 answers
9k views

Does an application purely for intranet use by employees need secure software design or to follow OWASP guidelines?

I'm developing an application over an intranet and is used only by an internal employee. There wouldn't be any external parties involved here and no external communication would be used by the ...
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1 vote
0 answers
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SQLMAP with single URL application

I have a local application which will be accessible only after login. Its single URL application, URL of application won't change, just it use 'XMLHttpRequest' to refresh the content of screen based ...
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0 answers
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Counterintuitive remediation cost scale within SEI CERT Coding Guidelines for priority

The SEI CERT Coding Guidelines assign a priority to each rule, formed from the product of three factors: severity, likelihood, and remediation cost. Each of these three factors is assigned a value ...
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2 votes
1 answer
93 views

Code Change That Resulted in Database Fields and Values Exposed

At my company, we have a new development team that has been completely rewriting all of the code for different parts of the system. I've noticed that with one of the recent changes, you can now see ...
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-1 votes
2 answers
1k views

"Reflected XSS"-like attack on chatbot AI

This is a theoretical question. I just watched a certain video in which the author apparently unmasks a chatbot AI that is likely trying to harvest data and spread influence in a cult-like manner on a ...
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1 vote
2 answers
533 views

How do we secure image parsing libraries against buffer overflow?

New to buffer overflow through image parsing. How can one design a secure library that parses images, and ensure there are no security vulnerabilities in it? It is common knowledge that image parsing ...
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2 votes
1 answer
554 views

Buffer Overflow in the C program

I'm preparing for an introductory information security examination in university and this is one of the examination questions on Secure Programming. Here is the question. Sorry the original condition ...
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0 votes
1 answer
331 views

Exploiting vulnerabilities in the C code

I'm preparing for an introductory information security examination in university and this is one of the examination questions on Secure Programming. In such questions, I would usually catch for ...
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1 vote
0 answers
112 views

Calling Powershell script from external program passing an argument

I have an external program which calls a PowerShell script with a random secret identifier as a single argument. The PowerShell script needs to return the same random secret id when it calls the REST ...
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2 votes
0 answers
217 views

How can an attacker use SQL injection in ALTER query?/What can an attacker do with an injectable ALTER statement? [closed]

Let's say you have a Java app which has a query which can unlock/reset passwords for users like: ALTER USER " + iD_Of_User.toUpperCase() + " IDENTIFIED BY " + password_Of_User + " ACCOUNT UNLOCK ...
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1 answer
295 views

Securing exec against executing adversary shell commands

I have to execute my .o or .out binary file pre-compiled with gcc, it should be intended to let the user execute the small program so an action is made that connects with the app installed on the user'...
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1 answer
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Securing a website for my school project [closed]

I have been given a task to secure a website which will be done by my group mates, but I have no clue. Could someone give my ideas? and how I am going to protect? what code can I use to secure login ...
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587 views

What is the risk of allowing user input in Python's 're' module

Some context I'm currently building an application which lets user's set up dynamic, queries they can execute later. A great addition to this seems like a regex module, in which users can filter ...
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0 votes
1 answer
406 views

Hiring an AppSec Engineer - What to look for?

I am in the process of trying to hire an AppSec Engineer to review our source code manually and have only been able to find those using appscan tools for secure code reviews. Is there something in ...
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1 vote
1 answer
464 views

Secure coding standards and guidelines

I was trying to research on available secure coding guidelines of server-side and client-side languages. There are online documentation from Oracle for Java, Microsoft for asp.net, and w3 for html5 ...
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2 answers
333 views

What factors should I consider when choosing the key for encryption and decryption?

We have an application that uses cookies to transmit employee personal data over from the front end to the server. We have planned to use TLS 1.2 for the encryption in transit. However once the java ...
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1 vote
1 answer
215 views

When to perform secure code review?

OWASP recommends that secure code review to be performed throughout the SDLC process. Although it makes sense to perform secure code review before moving codes to production, could anyone here help ...
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6 votes
1 answer
620 views

Username Enumeration in 2018 - How serious is this

I am looking at an application redesign and one of our business team research says that we are not getting or losing customers because they are not able to login. While I don't really care about the ...
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2 votes
1 answer
120 views

InfoSec consultancy - infrastructure vs development

I work for a company that has done in house application development (for our internal systems) since its inception decades ago. Recently, however, the rise of APIs and real-time data transfer has ...
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24 votes
4 answers
8k views

Can I trust public code versioning platforms when building a social platform?

We are developing a kind of social platform. It starts as a closed beta for a limited number of users, but the goal is to reach millions of subscriptions. We are currently limited on resources, both ...
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1 vote
1 answer
544 views

How can a git repository be sanitized efficiently and effectively?

A git repository will contain information on every previous commit and all the information in that commit. That means that if you have a git repository that contained any information such as secret ...
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0 votes
1 answer
1k views

Key Encryption / Obfuscation

I got a GUI Program, which loads the Logic from a webserver if the entered License Key is valid. The actual connection string I hexed and xor'd with a secret key. (which is unfortunately static) The ...
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0 answers
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How should I secure my database in Microservice architecture

Can someone tell me whether I should secure may connections to the database from my microservice? Should I worry about the communication between my microservice and database?
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0 votes
1 answer
183 views

security of swoopnow integration on website [closed]

We are planning to use swoopnow site apis (no-password) integration for our website. (swoopnow provide apis which give user to login on site without any password) However we are not sure about its ...
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  • 103
0 votes
1 answer
717 views

Secure file encryption with OpenSSL and a little trick?

I try to really securely encrypt a file with OpenSSL. I´m new to OpenSSL and just read here, that it´s not very secure due to it´s behavior in generating salt & IV, and storing it within the ...
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1 vote
2 answers
3k views

Is there a secure way to run a bat file from a Java program without command injection vulnerability?

Since using Runtime.exec() and ProcessBuilder trigger command injection vulnerability in static analyzing tools, is there any other recommended secure way to execute a bat file from a Java program? ...
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1 vote
2 answers
268 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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4 votes
2 answers
471 views

Is it a security defect to display the secure api_key in travis.yml file of source code of a web application in Github

I have been working on a code review of a project. The source code is publicly available on Github. I came across a file "travis.yml". In that file, I am able to see the secure api_key as shown in ...
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1 vote
0 answers
311 views

Veracode still reports OS command injection issue after I have applied the solution as recommendations from OWAPS and Roslyn Security Guard [closed]

Current code in my project is shown below and Veracode reports there is an OS command injection filename = Regex.Replace(filename, "[^a-zA-Z0-9_]", "_") & ".svg" ProcessStartInfo startInfo = ...
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