Node.js third-party modules: Filesystem Writes via `yarn install` via symlinks and tar transforms inside a crafted malicious package

I would like to report an arbitrary filesystem write vulnerability in Yarn when installing a malicious package from the default repositories. This vulnerability has the potential for RCE -- even if --ignore-scripts is disabled. It allows a malicious package, upon install, to write to any path on...

8x8: Publicly accessible .svn repository - aastraconf.packet8.net

The server contained artifacts from an old SVN repository. The files were removed...

New Relic: Host Header Injection

Reproduction 1- open reset link https://login.newrelic.com/passwords/forgot 2- Enter the victim's email address and click Reset and Email Password 3- Intercept the HTTP request in Burp Suite & add X-Forwarded Host Header and write attacker.com/.newrelic.com link will be like...

Paragon Initiative Enterprises: Github wikis are editable by anyone https://github.com/paragonie/password_lock/wiki

submitted a misconfiguration in some of our GitHub repositories to us. Wikis are inherently editable for all users, but for some repositories an organization may want to restrict this access. In some cases it was possible for GitHub users . Github wikis on the following project...

Mail.ru: XSS при загрузке изображения на [games.mail.ru]

Do-it-yourself XSS self-XSS via crafted file name in support request on games.mail.ru Insufficient filtering of dangerous tags when uploading images on games.mail.ru in technical support tickets...

Shopify: XSS on services.shopify.com

Hy security, i Got a stored xss in one of your sub-domain "services.shopify.com" steps: 1- Go to https://yourstore.myshopify.com/admin/apps/expertsmarketplace/servicesmarketplace 2- Then Go to All servicesMarketing and salesemail marketing Design custom email templates click select 3- fill al the...

Mail.ru: Source code disclosure

PHP configuration file was available for download on few terrhq.ru subdomains...

Monero: Computing hash of crafted block leads to crash in tree_hash()

I'm not sure how to test this against against an actual Monero instance, so I'm instead showing an isolated PoC: c include int mainvoid cryptonote::block b = AUTOVALINITb; for sizet i = 0; i baoss; std::string s; if ::serialization::serializeba, b == true s = oss.str; else return 0; / Uncomment t...

Mail.ru: Rails application running in development mode

autodiscover.staging.geekbrains.ru was running Ruby on Rails in development mode...

Phabricator: Issue:Form does not contain an anti-CSRF token

============================= Form does not contain an anti-CSRF token ============================= -------------------------------------------------------------------------------------------------------------------- There are 15 instances of this issue == / /Z1336 /applications/ /auth/start/...

Capital One: Heartbleed Bug

The Heartbleed Bug is a serious vulnerability in the popular OpenSSL cryptographic software library. This weakness allows stealing the information protected, under normal conditions, by the SSL/TLS encryption used to secure the Internet. SSL/TLS provides communication security and privacy over th...

X (Formerly Twitter): Twitter ID exposure via error-based side-channel attack

Twitter ID Confirmator === Summary Recently I discovered a privacy-related vulnerability in Twitter. An attacker exploiting this vulnerability can identify a user when they visit a malicious website. Description Threat model: The attacker knows the victim’s Twitter ID/username and aims at...

Internet Bug Bounty: DOS in stream filters

see bug report https://bugs.php.net/bug.php?id=76249 as simple as one process running in an endless loop Impact DOS, process ends up in an endless loop, CPU or available php processes or both of affected system get easily exhausted...

Algolia: Web Cache Deception Attack (XSS)

@testingforbugs identified an issue related to web caching which could lead to XSS attacks...

WePay: Active mixed content issues on the site https://stage-go.wepay.com.

Hello. Summary: Page https://stage-go.wepay.com/static/ contains active mixed content: Description: Passive mixed content is content sent over HTTP that is contained on the HTTPS page, but which can not change other parts of the page. For example, an attacker can replace a picture sent via HTTP...

VLC (European Commission - DIGIT): Access Violation Reading in libfaad_plugin

1 Basic info of application 1.1 Info of application Application Name VLC media player for Windows Application Version 4.0.0-dev Otto Chriek Download Address http://nightlies.videolan.org/ Testing OS Windows 8 2 Info of test file 2.1 Test file info Normal file name normal.mkv Normal file type...

Upserve : Open redirect on https://hq-api.upserve.com/

The returnto parameter on https://hq-api.upserve.com/auth/auth0?prompt=none&returnto= was not validated and allowed an open redirect...

GitLab: Blocked user Git access through CI/CD token

Summary A blocked user does not have the ability to utilise Git client operations, GitLab UI access or API access. However, a blocked user can still use Git clone/Git pull client commands if they are able to obtain a CI/CD token before being blocked. This allows them to access projects they are...

Internet Bug Bounty: [bower] Arbitrary File Write through improper validation of symlinks while package extraction

Hi, I want to submit my report https://hackerone.com/reports/473811 for the Internet Bug Bounty. Snyk's writeup: https://snyk.io/blog/severe-security-vulnerability-in-bowers-zip-archive-extraction My assessment on why this report might be eligible: To qualify, vulnerabilities must meet the...

Node.js third-party modules: [bower] Arbitrary File Write through improper validation of symlinks while package extraction

I would like to report file write in arbitrary locations via install command in bower It allows attackers to write arbitrary files when a malicious package is extracted. Module module name: bower version: 1.8.4 npm page: https://www.npmjs.com/package/bower Module Description Bower offers a generi...

VK.com: доступ к com.vk.usersstore.UsersContentProvider, возможна утечка exchange_token на android < 21

Подмена разрешений на старых версиях Android...

Zomato: Open Redirect On Your Login Panel

Summery Hey There are a open Redirect on your login panel Platforms Affected: Website Browsers Verified In If Applicable: Chrome For Android Firefox For Android Steps To Reproduce: 1. Go To This Url :- https://www.zomato.com/login?redirecturl=https://askdcodes.org 2. Then login there 3. boom you...

Kaspersky: Web protection component in Anti-Virus products family uses predictable links for certificate warnings

Summary Websites can predict links used in certificate warnings, Safe Money prompts, anti-phishing warnings and similar pages. This allows them to initiate actions without the user's knowledge. Description The links used to override certificate warnings have the following format: https:///?kiscup...

RubyGems: 65534 times efficient, Brute-force attack for api_key

I have found that type checking for apikey is insufficient in rubygems.org's source code. https://github.com/rubygems/rubygems.org/blob/master/app/controllers/applicationcontroller.rbL63 ruby def authenticatewithapikey apikey = request.headers"Authorization" || params:apikey @apiuser =...

Mail.ru: Open Redirect In passport.maps.me/logout/?next=//fb.com/

Open redirect on passport.maps.me page...

BOHEMIA INTERACTIVE a.s.: Stealing Users OAUTH Tokens via redirect_uri

Hi, I would like to report an Open redirection on oauth redirecturi which can lead to users oauth tokens being leaked to any malicious user. Detail During the OAUTH flow, the redirecturi on https://accounts.bistudio.com is not properly validating that the URL given is proper, as such a bypass of...

Khan Academy: SignUp With Fake Email

Hello KhanAcademy Security Team, I'm rootbakar, I found an oddity that allows a user to register with Khanacademy using an invalid or fake email. In this trial I used the email '[email protected]' and after pressing the SIGN UP button it will automatically enter the user dashboard pag...

GitLab: Unauthenticated blind SSRF in OAuth Jira authorization controller

The Oauth::Jira::AuthorizationsControlleraccesstoken endpoint is vulnerable to a blind SSRF vulnerability. The vulnerability allows an attacker to make arbitrary HTTP/HTTPS requests inside a GitLab instance's network. Proof of concept To reproduce the vulnerability, follow the steps below. - spin...

Shipt: Subdomain Takeover at test.shipt.com

A researcher identified a stale DNS record that pointed to an abandoned test Heroku instance. This allowed for subdomain takeover. This was not an actively used subdomain and was not linked in any of our production applications. Nonetheless, Shipt Security immediately addressed the issue and...

Mail.ru: Вывод значений переменных Nginx в теле страницы

При обращении к url вида: https://biz.mail.ru/$имяпеременнойnginx Значение этой переменной попадет в страницу ответа 404, во все места вида: e.mail.ru/login?lang=ruRU&Page=https%3A%2F%2Fbiz.mail.ru%2Fзначениепеременнойnginx Примеры запросов: 1 https://biz.mail.ru/test$realpathroot в ответе:...

Reverb.com: Api token exposed in Reverb.com's public github repository

An access token of a user account was available in a public github repo. The token was tied to an experimental project, and the account was only used for that project, so no sensitive information was able to be obtained...

Mail.ru: LFI in beta.mail.ru

Local file read via file:// URI in report's image in beta.mail.ru. beta.mail.ru is not currently covered by bug bounty program. Чтение произвольных файлов сервера путем недостаточной проверки прикрепленных изображений...

Ruby: Invalid URL parsing '#'

URI is not correctly parsed when "" is included in the URL. Therefore, could instead be tricked into connecting to a different host. PoC bash $ ruby --version ruby 2.4.1p111 2017-03-22 revision 58053 x8664-darwin16 ruby require 'uri' uri = URI"http://[email protected]/test" = p...

Node.js third-party modules: [mcstatic] Server Directory Traversal

I would like to report a Server Directory Traversal in mcstatic. It allows reading local files on the target server. Module module name: mcstatic version: 0.0.20 npm page: https://www.npmjs.com/package/mcstatic Module Description Static Http server for mocking and stuff Vulnerability Steps To...

Internet Bug Bounty: Silent omission of certificate hostname verification in LibreSSL and BoringSSL

Abstract LibreSSL and BoringSSL implemented X509VERIFYPARAMset1host differently than OpenSSL. All applications that use the preferred and documented way to configure a TLS connection for hostname validation, silently neglect to perform hostname validation at all. As a consequence, they are...

U.S. Dept Of Defense: Remote Code Execution (RCE) in a DoD website

SUMMARY: ==================== The DoD https://███/psc/EXPROD/ Web System uses the Oracle PeopleSoft platform which is vulnerable to Remote Code Execution RCE and Denial of Service Attacks DoS over a Java Object Deserialization CWE-502 in the “monitor” service. Thus an attacker can generate and se...

Node.js third-party modules: [general-file-server] Path Traversal vulnerability allows to read content on arbitrary file on the server

Hi Guys, There is Path Traversal in general-file-server module. It allows to read content of arbitrary files on the remote server. Module general-file-server This is a general file server made by nodejs. It will be easy for you to access the files on the server through the browser...

VK.com: Монипулирование на страницах пользоватлей значением "Подсказывать стикеры в полях ввода"

Отсутствовал hash в запросах при изменении настроек стикеров. Ошибочка в репорте включить на конце 1 Включить https://m.vk.com/attachments?ajax=1&act=stickershintsenabled&value=1 CSRF - ОТСУСТВИЕ HASH дает возможность совершать переключение в мобильной версии ВК , подсказок в полях ввода ! Тем...

Deriv.com: Leaking Referrer in Reset Password Link

On 12th Dec flex0geek reported that binary.com was leaking password reset tokens through referer headers . At first this sight the report was closed as we had fixed this earlier and our code base seemed fine . Later on the researcher sent a video POC which did show that we were leaking password...

VK.com: Blind XXE on pu.vk.com

Blind XXE vulnerability in processing of uploaded documents. Blind XXE vulnerability in processing of uploaded XML-documents such as docx. Vulnerability was hard-exploitable, because all data retrieval channels did not work except DNS...

RBKmoney: Open Redirection on auth.rbk.money

An open redirect vulnerability was found in KeyCloak. Find writeup soon in my website ; Edit , Write is here : http://abartandhakal.com.np/main/2018/01/27/open-redirection-on-rbk-money/...

HackerOne: Query parameter reordering causes redirect page to render unsafe URL

Hello hackerone team I want to report I bypass w/c lead to XSS but limited only for IE due to CSP block on chrome Here is the POC ------------------ https://hackerone.com/redirect?signature=c9304cadaeabca0bfb7b92503c0318da5c42a86b&url=http%3A%2F%2Fbuglabs.me&url=JAVASCRIPT:alert%09document.domain...

Inflection: Unsubscribe Any User

Researcher reported that HubSpot's "unsubscribe" feature allows any user to unsubscribe from marketing emails without having to confirm their email address. Inflection does not consider this a vulnerability, as we want to make it as easy as possible for users to stop receiving marketing emails th...

Legal Robot: cross site web socket hijacking

In the below web-socket request successful 101 protocol handshake is working with the origin:https://app.legalrobot.com, but if you place the malicious origin in the place of https://thisdata.com which is http://evil.com or any page containing the malware, the web socket server is still giving 10...

GitLab: [Markdown] Stored XSS via character encoding parser bypass

Hi @briann and team, A carefully crafted injection used against the Markdown input parser can be leveraged to store and execute arbitrary JavaScript on GitLab 10.0 hosts. Given the nature of this injection, which makes use of a rather esoteric filter bypass, the scope for exploitation may vary...

HackerOne: Report Private Links Leaks to Google Analytics via Query String Param

Hello HackerOne Team, According to HackerOne privacy HackerOne sometimes partners with third-party services which may use various tracking technologies to provide certain services or features, including targeted online marketing. These technologies allow a partner to recognize your computer or...

Rockstar Games: dom based xss in http://www.rockstargames.com/GTAOnline/ (Fix bypass)

The researcher was able to bypass a previous fix for a DOM-Based XSS vulnerability 254343 by hashing part of the payload. This showed that our previous fix was insufficient, so we updated it to a more thorough solution...

Quora: XSS through `__e2e_action_id` delivered by JSONP

Summary: The e2eactionid params used with POST requests to /servercallPOST?m= endpoint is not properly escaped when reflected back on a response allowing to inject Javascript. Also, another issue on some methods such as /servercallPOST?m=edit allows - with a strong premise discussed on the...

WakaTime: No notificatoin sent on email after account deletion.

Hi again, Description: I've just noticed that there's no email notification received after successfully removal of account. Fixation: User should be notified by email notification at his email after removal of an account. Cheers Mansoor...

Automattic: SSRF and local file disclosure in https://wordpress.com/media/videos/ via FFmpeg HLS processing

Summary FFmpeg is a video encoding software that appears to be used by wordpress.com for video processing for paid accounts. FFmpeg is known to process HLS playlists that may contain references to external files. I was able to fire this feature using GAB2 subtitle chunks inside an AVI file. After...