BlockDev Sp. Z o.o: Steal all MKR from `flap` during liquidation by exploiting lack of validation in `flap.kick`

Summary: The flap contract provides the ability to auction DAI for MKR. That's a fundamental functionality of the MCD system, invoked usually from the vow contract. A flaw in the validation of calls to flap.kick, however, allows a malicious user to create "fake' auctions that can be later used to...

X (Formerly Twitter): Periscope-all Firebase database takeover

Hello, I found one public Firebase database of periscope.tv and I can able to insert data to this database and i only used it once for the testing purposes, so other database queries also possible. Please follow the below link to check the inserted test data. Periscope-all Firebase URL :-...

BlockDev Sp. Z o.o: Steal ALL collateral during liquidation by exploiting lack of validation in `flip.kick`

Summary: The flip contract allows for the MCD system to auction collateral in exchange for DAI. A lack of validation in the method flip.kick allows an attacker to create an auction with a fake bid value. Since the end contract trusts that value, it can be exploited to issue any amount of free DAI...

U.S. Dept Of Defense: Authentication bypass and RCE on the https://████ due to exposed Cisco TelePresence SX80 with default credentials

Description Hello. I was able to identify Cisco TelePresence SX80 device located on the https://█████ According to the IP Info: https://ipinfo.io/████████it belongs to ASN with ID ███████ so it's likely in scope of the program. The mentioned instance has default credentials ████ POC https://█████...

Central Security Project: Unrestricted File Upload Leading to Remote Code Execution

Description As an administrator user it is possible to create files and directories in any location on the file system of the server. This can be abused to write files to any sensitive location on the Windows file system because the Nexus process runs with SYSTEM privileges. This can allows an...

Mail.ru: [ RCE ] Through stopping the redirect in /admin/* the attacker able to bypass Authentication And Upload Malicious File

Combination of improper access control and unrestricted files upload in non-production service led to RCE possibility...

Kartpay: Referer issue in Kartpay.com

on https://Kartpay.com. The Issue of Referer was Fixed earlier before reporting this issue again but on finding the root cause it was found that the Code is perfect but the Sequence of code / Priority of code has changed which leads to Referer issue again. So The Sequence of Code has changed to...

Vanilla: XSS through chat messages

vulnerability name: cross site scripting through chat messages vulnerability description: cross site scripting is a vulnerability that allows an attacker to send malicious codeusually in javascript form to another user Because a browser cannot know if the script should be trusted or not, it will...

Internet Bug Bounty: Windows builds with insecure path defaults (CVE-2019-1552)

Advisory: https://www.openssl.org/news/secadv/20190730.txt Severity: Low OpenSSL has internal defaults for a directory tree where it can find a configuration file as well as certificates used for verification in TLS. This directory is most commonly referred to as OPENSSLDIR, and is configurable...

X (Formerly Twitter): XSS and Open Redirect on MoPub Login

Summary: I found open redirect at the MoPub login page, https://app.mopub.com/login?next=https://google.com. It also allows javascript URIs, leading to XSS. Description: You can modify the "next" URL parameter to redirect to any website upon logging in on MoPub. Steps To Reproduce: 1. Take this...

U.S. Dept Of Defense: Unrestricted File Upload

Summary: The endpoint at https://███████/ui/core/index.html required authentication, but navigating to https://█████/ui/core/index.html?mode=publicexpl-tabl./SHARED/rpchllmd/CSAT allow for read/write access. Description: The endpoint at...

Valve: Arbitrary file creation with semi-controlled content (leads to DoS, EoP and others) at Steam Windows Client

The vulnerability allows to create arbitrary file with some crafted text or append to existing file. Tested on actual version 5.31.28.21 SteamService.exe filevesion info. At start of the report I describe how to trigger vulnerability, than describe how to cause any consequences. How to trigger - ...

Starbucks: Improper handling of payment callback allows topping up a Swiss Starbucks Card bypassing actual payment via a crafted success message

khovansky uncovered that an attacker could register on https://xtras.starbucks.ch and utilizing that registration, subsequently generate a reset password email via https://card.starbucks.ch After resetting the password for the account, khovansky noticed this process auto generates a virtual Swiss...

GitLab: Git flag injection - Search API with scope 'blobs'

As requested from @hackerjuan, breaking this out of https://hackerone.com/reports/658013 for easier tracking. Summary Gitlab 12.1.6 fixed the wikiblobs scope of the search api, but the blobs scope is still vulnerable to git flag injection and allows reading any file in /var/opt/gitlab/gitaly...

WordPress: Parameter tampering : Price Manipulation of Products

Hello Security Team, I have found that you can buy any products in less amount or even we can say as free by changing the price of the product!! POC : 1 go to https://mercantile.wordpress.org/ 2 choose any product and add to cart 3 Now go to cart add your billing details 4 Intercept request with...

Node.js third-party modules: [node-red] Stored XSS within Flow's - "Name" field

NOTE! Thanks for submitting a report! Please replace all the square sections below with the pertinent details. Remember, the more detail you provide, the easier it is for us to triage and respond quickly, so be sure to take your time filling out the report! I would like to report Stored XSS in...

ZEIT: Unauthorized admission to any team in zeit.co

step no.1: open : https://zeit.co/teams/invite/ XXXX and this is a code "CzKyCgbB" of joining in a team called "maxhacker" if we generate a list consists of 8 capital and small letters with any generate tools F565462 knowing that the invitation code of any team is constant...

Brave Software: Stored XSS in localhost:* via integrated torrent downloader

Summary: Due to filename of downloading torrent file isn't sanitized, an attacker is able to execute arbitrary JavaScript on localhost: by abusing crafted torrent file. Products affected: Brave 0.68.131 Chromium: 76.0.3809.100 Official Build Steps To Reproduce: 1. Open...

Pornhub: IDOR allows any user to edit others videos

The researcher was able to change the password of private videos, edit other videos data such as title and description, publish private videos by successfully exploiting an IDOR...

Nextcloud: The password recovery let users know whether an email address exists or not in the website

URL: https://apps.nextcloud.com/password/reset/ I have tried to recover the password for some emails: [email protected] exists [email protected] does not exists After I clicked the "reset my password"'s button, the website informed that the email did not exist. Impact This is a bad practice, and it ...

New Relic: User can run monitors at private locations, which he has no access to

@skavans discovered that insufficient validation was performed when configuring Synthetics monitors allowing deployment to arbitrary private locations with knowledge of the location ID: POST /accounts//validation.json HTTP/1.1 Host: synthetics.newrelic.com...

U.S. Dept Of Defense: Command Injection (via CVE-2019-11510 and CVE-2019-11539)

Summary: The Navy has a Pulse Secure SSL VPN https://████████/dana-na/auth/urldefault/welcome.cgi that is vulnerable to: CVE-2019-11510 - Pre-auth Arbitrary File Reading CVE-2019-11539 - Post-auth Command Injection vulnerable hostname from ssl certificate: ██████████.navy.mil The pre-auth arbitra...

Internet Bug Bounty: mod_http2, read-after-free in h2 connection shutdown (CVE-2019-10082)

Using fuzzed network input, the http/2 session handling could be made to read memory after being freed, during connection shutdown. This is made possible by a race condition in which nghttp2 maintains a reference to a stream after modhttp2 has destroyed it. This vulnerability has been fixed in...

New Relic: Stored XSS at Synthetics private locations (planted through location label or description)

Hey team, I've discovered stored XSS at Synthetics private locations list. The Private locations page contains a script with private locations metadata inside and the user-input of location label and description aren't properly escaped as you can see below: html window.nr =...

Slack: CSS Injection to disable app & potential message exfil

Tested on Slack for MacOS v4.0.2 - I've marked this as code injection since there was no "css injection" 1. In the app go to Preferences - Sidebar 2. Enable custom theming 3. Set the column BG to FFFFFF; html display:none; 4. The app will no-longer render this survives re-installs If this theme...

Roblox: Malformed string sent through FireServer leads to server freezing/hanging

This was found an hour ago so if I get any information wrong, please comment and I'll get back to you! A cheater/exploiter can hang any Roblox gameserver due to a 5 line script which sends a big malformed string through SayMessageRequest resulting in the server to hang itself. This works in any...

MyCrypto: The twitter accounts are linked on page but unclaimed.

Hey team! There is two unclaimed social media account on "https://about.mycrypto.com" Accounts https://twitter.com/rikasukenik https://twitter.com/sharonmanriquej Proof Of Concept POC For account one: F562323 For account two: F562307 F562308 F562310 Note Yes you noticed that like "Social...

Node.js third-party modules: [crypto-js] Insecure entropy source - Math.random()

Module module name: crypto-js version: 3.1.9-1 npm page: https://www.npmjs.com/package/crypto-js Module Description JavaScript library of crypto standards. Module Stats Replace stats below with numbers from npm’s module page: 184959 downloads in the last day 912568 downloads in the last week...

Nextcloud: potential RCE and XSS via file upload requiring user account and default settings

potential RCE and XSS via file upload requiring user account and default settings Requirements 1. User account that can upload files NO admin 2. User account name on creation usually the same as on creation/displayed name 3. data directory inside of nextcloud server folder suggested by...

U.S. Dept Of Defense: Arbitrary File Reading leads to RCE in the Pulse Secure SSL VPN on the https://███

Description Hello. Some time ago, researcher Orange Tsai from DEVCORE team had a talk on Defcon/BlackHat regarding Pulse Secure SSL VPN vulnerabilities fixed on 2019/4/25: CVE-2019-11510 - Pre-auth Arbitrary File Reading CVE-2019-11542 - Post-auth Stack Buffer Overflow CVE-2019-11539 - Post-auth...

Node.js: Hostname spoofing

Summary: I found that url.parse is vulnerable to hostsplit that causes hostname spoofing. Description: Steps To Reproduce: url.parse'http://evil.c℀.victim.test/?' returns evil.ca/c.victim.test as hostname, so this hostname matches .victim.test but will access evil.ca. Welcome to Node.js v12.9.0...

Liberapay: Invalidate session after password reset

Website doesn't invalidate session after the password is reset which can enable attacker to continue using the compromised session. Steps: 1 Open same accounts in two different browsers 2 Change password in one browser and you will see that another browser still validate the session after passwor...

Node.js third-party modules: `indexFile` option passed as an argument to node-server can lead to arbitrary file read

Hi Guys, I would like to report Path Traversal vulnerability in indexFile parameter passed as an option tonode-server. This vulnerability affects both CLI --indexFile and options.indexFile passed as an argument to Server.prototype.serveDir function in node-static.js Module module name: node-stati...

ZEIT: Open Redirect on Gitllab Oauth leading to Acount Takeover

Summary: When an Open Redirect is used in a phishing attack, the victim receives an email that looks legitimate with a link that points to a correct and expected domain. What the victim may not notice, is that in the middle of a long URL there are parameters that manipulate and change where the...

Internet Bug Bounty: mod_http2, memory corruption on early pushes (CVE-2019-10081)

HTTP/2 very early pushes, for example configured with H2PushResource, could lead to an overwrite of memory in the pushing request's pool, leading to crashes. The memory copied is that of the configured push link header values, not data supplied by the client. Scenarios where an attacker may be ab...

GitLab: Container scanning and Dependency scanning report leaked to unauthorized users

Hi GitLab Security team Summary GitLab makes the container scanning and dependency scanning information available as part of a JSON endpoint for merge requests. These reports are output of the CI job and should only be displayed if the visiting user has access to CI. However, right now GitLab...

Node.js: Http response is not ended although underlying socket is already destroyed

Summary: When node server receives http request and hooks to end, finish and error events are attached on response object to handle cases when response is closed/ended but underlying socket is abruptly terminated then none of those events is fired. This leads to state when response seems to be...

Coda: Use Github pack with Coda employee github account (search code of Coda's private repositories)

Summary: When you use the Github formula, the information from the Github API is returned by the endpoint https://coda.io/coda.CalcService/InvokeFormula. From what I understand, this endpoint expects a gRPC request. In the request is sent: the formula Github..CodeSearch, the version of the Github...

Semrush: Github information leaked

Researcher has found the third-party repository with test data for internal services development...

Valve: [GoldSrc] Remote Code Execution using malicious WAD list in BSP file

Summary TEXInitFromWad function calls COMFileBase to get file name from a path into a buffer on the stack. Since COMFileBase does not have boundary checks and the buffer is small, long WAD file name can trigger a Stack Buffer Overflow, leading to arbitrary code execution. Steps to reproduce...

Mail.ru: Delete images of users with clickjacking in https://pw.mail.ru

Researcher found site-wide Clickjacking on https://pw.mail.ru which potentially could be used to trick user to delete avatar or change his/her profile data...

Internet Bug Bounty: Out of Bounds Memory Read in exif_process_user_comment

I have found and reported an out of bounds memory read in PHP exifprocessusercomment When PHP EXIF extension is parsing EXIF information from an image, e.g. via exifreaddata function, in PHP versions 7.1.x below 7.1.31, 7.2.x below 7.2.21 and 7.3.x below 7.3.8 it is possible to supply it with dat...

Internet Bug Bounty: Out of Bounds Memory Read in exif_scan_thumbnail

I have found and reported an out of bounds memory read in PHP exifscanthumbnail When PHP EXIF extension is parsing EXIF information from an image, e.g. via exifreaddata function, in PHP versions 7.1.x below 7.1.31, 7.2.x below 7.2.21 and 7.3.x below 7.3.8 it is possible to supply it with data wha...

WakaTime: [invalid][false-positive] csrftoken on profile page

step of reproduce- 1. Go to https://wakatime.com and create account. 2. login account after that go public profile. 3. after that change the full name and intercept brup suite and delete csrftoken. 4. After forward then you see name was changed. Impact Violation of Secure Design Principles...

Vanilla: Conversation API Leaks Details Of UnAuthorized Conversations

Summary: If a user creates a conversations, and then leaves, all API calls and web access to that conversation is locked down. Except for one particular API call which allows you to see details about ongoing conversations you have since left as long as you created the conversation in the first...

U.S. Dept Of Defense: SQL Injection - https://███/█████████/MSI.portal

Summary: https://███████/███████/MSI.portal has a form page which is vulnerable to SQL injection. Description: URL: https://████/██████/MSI.portal?nfpb=true&pageLabel=msiportalpage61query The above url has a form where the field MSIqueryType is vulnerable to time based blind SQL injection. I...

Valve: /applications/dpc_(get|post) provide full access to api.steampowered.com with the Dota2 API key

The vulnerability allowed attackers to call arbitrary API methods using an API key with elevated privileges for Dota2...

X (Formerly Twitter): AppLovin API Key hardcoded in a Github repo

Hello, I found a Sensitive Data Exposure in github/mopub-android-mediation project, the AppLovin UI API key is hardcoded in source code. And in the comment it's mentioned that "This is a unique SDK Key from AppLovin. Get yours from the AppLovin UI". Github Link:-...

HackerOne: Total Paid Bounty Paid can be disclose

Summary: Hello HackerOne Bug Bounty Team, I noticed that HackerOne recently updated their interface. Indeed, when a hacker hover his mouse over a program, it now disclose some new information : F556858 The one that interested us is "Bounties sent in the last 90 days" value Description: This new...

U.S. Dept Of Defense: Examples directory is PUBLIC on https://████████mil, leading to multiple vulns

Description: Hello, In an effort to consolidate reporting. I have located 4 issues with having the Examples Directory openmy require just 1 solution to mitigate The following URLs that show concern are the following: 1. https://█████mil/examples/servlets/servlet/SessionExample --Will lead to...