Node.js third-party modules: Prototype pollution attack (merge.recursive)

I would like to report prototype pollution in merge. It allows an attacker to inject properties on Object.prototype. Module module name: merge version: 1.2.0 npm page: https://www.npmjs.com/package/merge Module Description Merge multiple objects into one, optionally creating a new cloned object...

Slack: SSRF in api.slack.com, using slash commands and bypassing the protections.

Bypassing the reports 61312 and 356765 Tutorial: Go to api.slack.com and create an application with your own slash command. F320014 Enter your own domain: in your own domain: index.php location: http://:::22/ F320019 And save. Go to your Slack and type /youslash Try with my server...

Node.js third-party modules: Prototype pollution attack (defaults-deep / constructor.prototype)

I would like to report a prototype pollution vulnerability in defaults-deep. It allows an attacker to inject properties on Object.prototype. Module module name: defaults-deep version: 0.2.4 npm page: https://www.npmjs.com/package/defaults-deep Module Description Like extend but recursively copies...

Fresh Spectre Variants Come to Light

Two new speculative execution bugs have earned researchers a $100,000 bug bounty from Intel. MIT’s Vladimir Kiriansky and independent researcher Carl Waldspurger uncovered what they call Spectre1.1 and a subset, Spectre1.2, collectively referred to as Variant 4 of Spectre by Intel and ARM. Like t...

HackerOne: Team object exposes amount of participants in a private program to non-invited users

Summary: Hello. Similar to other reports, suddenly after the update with ordering users, the GraphQL API is exposing the amount of participants in a private program to non-invited users. This allows an attacker to retrieve the amount of participants in a private program, as well as their details...

HackerOne: Ajouter le même utilisateur que celui déjà inscrit dans les équipes

Description: Possibilité d'ajouter le même utilisateur que celui déjà inscrit dans les équipes. Steps To Reproduce 1. Aller sur https://hackerone.com/teamname/teammembers 2. Observer les emails des utilisateurs. 3. Utiliser le même email que celui précédemment inscrit, mais varier les majuscules ...

HackerOne: HackerOne customer submitted sensitive link to VirusTotal, exposing confidential information

Hi There, Steps To Reproduce 1- open this site: https://www.virustotal.com//domain/hackerone.com ------------------------- 2- Then Go down to the end of this page and you will see this: ████ https://hackerone.com/reports/334677?invitationtoken=███████ -------------- 3- when i open it, i see this:...

HackerOne: Content spoofing and potential Cross-Site Scripting vulnerability on www.hackerone.com

Summary: Hackerone.com using following script file https://js.driftt.com/include/1530431100000/hp9revvwkk62.js you can see the below script on page this.handleMessage=functioneife&&e.datavar t=document.getElementByIdSi;ift&&e.source===t.contentWindow||e.source===window.opener handleMessage method...

HackerOne: Blind SSRF on errors.hackerone.net due to Sentry misconfiguration

Summary: When setting up Sentry you should turn off "source code scrapping". If it is turned on, then server that has Sentry on it will make blind get requests everywhere controlled from outside via error reporting. Description: Hello Hackerone team. In your CSP I found ?sentrykey parameter, so i...

OX App Suite 7.8.4 XSS / Privilege Management / SSRF / Traversal

Dear subscribers, we've migrated our public disclosure workflow to full-disclosure and are catching up on publishing recent vulnerabilities through this channel. Feel free to join our bug bounty programs open-xchange, dovecot, powerdns at HackerOne. Yours sincerely, Martin Heiland, Open-Xchange...

Information Exposure on Case Insensitive File Systems

Overview Versions of serve before 7.0.0 are vulnerable to information exposure, bypassing the ignore security control, but only on case insensitive file systems. Recommendation Update to version 7.0.0 or later. References - HackerOne Report - GitHub Advisory...

Cross-Site Scripting

Overview All versions of sexstatic are vulnerable to stored cross-site scripting xss. This is exploitable if an attacker can control a filename that is served by sexstatic. Recommendation As there is no fix is currently available for this vulnerability it is our recommendation to not install or...

Command Injection

Overview Versions of pdf-image before 2.0.0 are vulnerable to command injection. This vulnerability is exploitable if the attacker has control over the pdfFilePath variable passed into pdf-image. Recommendation Update to version 2.0.0 or later. References - HackerOne Report - GitHub Advisory...

Liberapay: Current CSP Policy chained with HTML Injection can lead to Data Exfiltration

Hi Team, Summary While reviewing the CSP headers for en.liberapay.com i noticed that img-src has a source set to which means any source on the internet. The following is found in the current CSP Header config. img-src blob: data: Description: If the site is vulnerable to HTML Injection its possib...

GitLab: Potensial SSRF via Git repository URL

Duplicate: Fixed in 8.17.4, 8.16.8, and 8.15.8 Original report: https://hackerone.com/reports/135937 SSRF when importing a project from a Repo by URL GitLab instances that have enabled project imports using "Repo by URL" were vulnerable to Server-Side Request Forgery attacks. By specifying a...

Zomato: [www.zomato.com] SQLi on `order_id` parameter

@saltedfish found that a parameter orderid was vulnerable to SQLi. POC for everyone to learn from this disclosed report - There was an endpoint which had orderid as one of the parameters. - Requesting '-if1=2,'0','1'-' in orderid parameter changed the Response Length and upon further investigatio...

HackerOne: Exposing hackerone users personally identifiable information by abusing sandbox with swag reward enabled

Hi HackerOne Team, Summary: I have found a critical bug but this will require a bit user interaction, BUT please take note that once exploited, a hackerone user's PII - personally identifiable information can be exposed. I have found this bug by using the sandbox with swag reward enabled . --- Le...

HackerOne: Hacktivity of a private program visible to banned user if he gets invited to a program by hackbot

Summary: The hacktivity of a private program is visible to banned user if he gets invited to a program by hackbot. Description: Back in 2016 i was banned by █████'s private program ███ due to some conflict between me and their security team, i think they manually put me in banned users list, but...

HackerOne: HackerOne support disclosing report state without checking user identity

How was i able to to know the state of report using Hackerone Support: I was able to know the state of report using different email address by contacting Hackerone Support. So the thing is this is my report https://hackerone.com/reports/344238 which is not even disclosed and closed as informative...

Cross-Site Scripting

Overview All versions of react-marked-markdown are vulnerable to cross-site scripting XSS via href attributes. This is exploitable if user is provided to react-marked-markdown Proof of concept: import React from 'react' import ReactDOM from 'react-dom' import MarkdownPreview from...