curl: krb5: double-free in read_data() after realloc() fail

Summary: In 'lib/security.c', there is a double-free of the reference 'buf-data' on the teardown path if 'Curlsaferealloc' fails. Also, since we read 'len' from the 'fd', the sender might be able to remotely trigger a realloc failure, and then the double-free, by sending the value 0x7fffffff...

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...

GitLab: Git flag injection - local file overwrite to remote code execution

Summary The wikiblobs scope of the Search API can be provided with an arbitrary ref parameter, allowing for additional flags to be injected into the git command. For example the following API call: curl --header "PRIVATE-TOKEN: $TOKEN"...

HackerOne: Total bounties paid amount is disclosed because of redesign of the Program Profiles

Description: On July 2 Hackerone redesigned the Program Profiles.After the new program page design, I noticed that it is disclosing total bounties paid amount. For some program total bounties paid amount was hidden ████. It used to show like $4000 if the bounty was $3990.But after the redesign, i...

Mail.ru: web.icq.com XSS in chat message via contact info

web.icq.com XSS in chat message via contact info...

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...

QIWI: Обход комиссии на переводы

Доброго времени суток. Не так давно мне на кошелек подключили тариф «Активный пользователь кошелька» Этот тариф подразумевает 2% комиссии на переводы. Меня, соответственно, это крайне не устроило и я решил пойти искать обход. После недолгих поисков удалось найти дыру вот здесь...

VK.com: Бесконечный доступ к аккаунту если мы смогли хотя бы раз зайти на аккаунт.

Временная возможность продлить сессию после получения полного доступа к странице...

Nextcloud: Linux client is vulnerable to directory traversal when downloading files

Summary The Nextcloud Linux client is vulnerable to directory traversal when downloading files from a Nextcloud server. A malicious Nextcloud administrator can exploit the vulnerability to write arbitrary files to a user computers with the potential for remote command execution under certain...

Trint Ltd: IDOR in changing shared file name

Summary: Hi Trind LTD, I have found a IDOR vulnerability in https://app.trint.com . An user can change shared file names through this IDOR. Steps To Reproduce: 1. Create a file from account B 2. Capture the request of renaming the file as shown in sample request 3. Create a file from account A an...

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/...

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...

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...

RATELIMITED: Server Header disclose The Os and Web server Version

Server header was present and disclosed the version of the web server and OS in HTTP responses. Server header was present and disclosed the version of the web server and OS...

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...

Shopify: H1514 DOM XSS on checkout.shopify.com via postMessage handler on /:id/sandbox/google_maps

Description: The /:id/sandbox/googlemaps and /:id/sandbox/googleautocomplete routes on checkout.shopify.com are used to render the Google Map on the "Order Status" page as well as the address prediction on checkout pages. The page performs origin validation on incoming postMessages making sure th...

BOHEMIA INTERACTIVE a.s.: Weak Password Policy on Signup at https://accounts.bistudio.com/auth

Hi, I found that you are using a weak password policy! Because user can set his password same as Email address! Steps To reproduce: 1. Register an account with Email address "[email protected]" 2. Also password "[email protected]". You can see both values are same. You will become successfully register...

Weblate: flood of comment no rate limit on commnets >> by using different user agent

It was possible to post 200- 300 of comments within minutes, there was no rate limiting applied...

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...

DuckDuckGo: SSRF vulnerability on proxy.duckduckgo.com (access to metadata server on AWS)

Hello, I saw that SSRF on proxy.duckduckgo.com is out of scope but because of the severity I wanted to report this. The payload is simple: curl "https://proxy.duckduckgo.com/iur/?f=1&imagehost=http://169.254.169.254/latest/meta-data/" Response from the server: ami-id ami-launch-index...

Ruby: OpenSSL::X509::Name Equality Check Does Not Work, Patch included

When two OpenSSL::X509::Name objects are compared using ==, depending on the ordering, non-equal objects will return true. When the first argument is one character longer than the second, or the second argument contains a character that is one less than a character in the same position of the fir...

Chaturbate: Homograph attack on redirect URL (https://chaturbate.com/external_link/?url)

Hi There, Hope you are doing good, As i was just playing around with chaturbate.com and found that you guys does not have proper configuration for malicious script injection in website. In Homograph attack basically attacker may able to inject some malicious script with URL. Here i made homograph...

Internet Bug Bounty: linkinfo - openbasedir bypass on Windows PHP

Upstream bug - windows linkinfo lacks openbasedir check === https://bugs.php.net/bug.php?id=76459 Summary == Description: ------------ linkinfo function on windows doesn't implement openbasedir check, it can be seen by reviewing the source code. This could be abused to find files on paths outside...

Vanilla: Bypassing the Trusted Link Alert System

Summary: I have discovered a means of bypassing the system that will alert users of an untrusted link utilizing the Right to Left Overrride unicode character. The alert looks like this: https://i.imgur.com/9rp1K7b.mp4 Description: For this demonstration, I have added "facebook.com" to the trusted...

VK.com: Доступ к администраторским faq

Просмотр некоторых закрытых статей FAQ. Уязвимость позволяла получить доступ к талмудам vk.com/tlmdXXX в которых хранится информация для администраторов и модераторов социальной сети ВКонтакте... Получение доступа к адм. информации... @ 500$...

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:...

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...

Mail.ru: lootdog.io XSS

В данной ссылке можно наблюдать опенредирект: 1. https://lootdog.io/register?next=http://mail.ru?https%3A%2F%2Flootdog.io%2F Заполняем эту форму, подтверждаем номер: F290679 Нас перекидывает на http://mail.ru Impact open redirect...

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...

Slack: Information leakage and default open port

@freem0 found Prometheus plugin output that was exposed at one of our servers. The information exposed including some OS information metrics about memory usage, but no customer data was at risk and no exploit was possible. Thank you @freem0!...

ownCloud: OS Command Injection via tainted PATH environment variable in findBinaryPath

The PATH environment variable is passed to the find command in owncloud/core/blob/master/lib/private/legacy/helper.php on line 543 is not sanitized for input. If an adversary is able to taint the PATH environment variable, OS command execution is possible utilizing the find command's execute -exe...

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...

Open-Xchange: SSRF - RSS feed, blacklist bypass (301 re-direct)

FYI - Tested on local installation of App Suite 7.8.4 REV 17 Hello, There appears to be another SSRF re-direct vulnerability, similar to my earlier reports that will allow scanning of the App Suite local ports or internal hosts, regardless of blacklist protection in place. The endpoint is the...

Rockstar Games: Blind SSRF in emblem editor (2)

Hello, As per your recommendation in 233301, I'm submitting a PoC for another blind SSRF in the emblem editor. To oversight here is allowing absolute url values for the fill attribute: path fill="urlhttps://requestb.in/15rxmgv1test" stroke="a1a1a1" ... Upon publishing an emblem containing such an...

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...

Automattic: woocommerce - prevent_caching() bug / bypass

As guest visit the following links and look at the headers. Yup there are not caching headers in the response. https://woocommerce.com/.cart/https://woocommerce.com/.cart/ https://woocommerce.com/+cart/https://woocommerce.com/+cart/ https://woocommerce.com/-cart/https://woocommerce.com/-cart/...

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...

Automattic: Unauthenticated RCE in Vaultpress

Hitting wordpress instalattion with vaultpress on it with get parameter vaultpress=true attacker is one method away from RCE and that method is validateapisignature. In this method we have the following constraints: 1. Firewall 2. Usage recomended of openssl to validate API call In case of disabl...

HackerOne: WannaCrypt “Killswitch”

WannaCrypt a.k.a. WannaCry is the name of a malware used in the May 2017 global ransomware attack targeting Microsoft Windows operating systems via known vulnerabilities leaked by The Shadow Brokers. In MalwareTech’s research, it was found that the malware sends an HTTP request to a seemingly...

Weblate: Rate Limit Bypass on login Page

Hi, Your web authentication endpoint, https://demo.weblate.org/accounts/login/ POST, currently protects against credentials brute-force attacks only by requests rate-limiting based on IP. It was found that if an attacker sends login requests faster than every 4 seconds from the same IP address, i...

Homebrew: Host header Injection

HI SECURITY TEAM Here is host header injection. Request changing host to www.google.com GET / HTTP/1.1 Host: www.google.com User-Agent: Mozilla/5.0 Windows NT 6.1; rv:24.0 Gecko/20100101 Firefox/24.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8 Accept-Language:...

Shopify: XSS in $shop$.myshopify.com/admin/ via twine template injection in "Shopify.API.Modal.input" method when using a malicious app

Description The Shopify Embedded App SDK is used to facilitate limited interactions with parent page /admin/apps/$id from an embedded app within the shop admin interface. The SDK has multiple methods which allow an app to interact with the user which execute in the context of the admin domain and...

Mail.ru: Stored XSS in e.mail.ru (payload affect multiple users)

Hi, We have found a high risk level STORED XSS in e.mail.ru chat, the status change function allow to inject malicious payload in javascript & HTML, The attack affect multiple users and run in auto mode, no need a user interaction. Vulnerability affect any user that have been invited to your chat...

Ruby: Arbitrary heap exposure in JSON.generate

Running this snippet can expose arbitrary memory: ruby require 'json' state = JSON.state.new state.space = "\0" 1024 puts JSON.generatea: :b, state "a": psych/handlers/recorder.rb tensi0 reeze Gem::Specification.new do |s| to objects of the same type as the original delegate...

Zomato: Unauthorised Access to Anyone's User Account

When we do Login with Facebook on the Zomato app, you're doing zero authentication of the user. I'm able to hack into the targeted user's accounts by just using the Facebook ID. Affected API raw request: POST...

Uber: Reflected XSS in lert.uber.com

Due to a lack of input validation from the search field on lert.uber.com, it was possible to obtain a Reflected XSS from the URL path, e.g. https://lert.uber.com/s/search/All/Home"PAYLOAD. Thanks, @hussain0x3c!...

Udemy: Completed Compromise & Source Code Disclosure via Exposed Jenkins Dashboard at https://jenkins101.udemy.com

Howdy, @udemy! Summary: ======= I am writing to inform you of a critical information disclosure bug via an exposed Jenkins dashboard located at https://jenkins101.udemy.com. Upon navigating to this address, I was asked to authenticate with my Github account. After authenticating, I was surprised ...