Open-Xchange: Pre-auth Denial-of-Service in Dovecot RPA implementation

Hi, Dovecot security team. I am Orange from DEVCORE security team. We just did a little security audit on the authentication mechanism of Dovecot, and found a buffer over-read in RPA implementation. In the mech-rpa.c, the function rpareadbuffer doesn't check that the length could be zero, and pas...

HackerOne: GraphQL node interface for ActiveResource models lacks encoding for resource identifier, enabling parameter injection in Payments backend

HackerOne exposes a small number of ActiveResource objects through its GraphQL node interface. ActiveResource objects use HTTP as transport layer in order to fetch data. Four of these models, TaxForm, Payout, Payment, and PayoutPreference are fetched from an internal Payments backend system with ...

MTN Group: OTP bypass - Unintended disclosure of OTP to client allows attacker to manage users' subscriptions

Summary: https://play.mtn.co.za/ authenticates subscribers via OTP before their subscriptions to be changed. However, the request which sends the OTP also returns the OTP in the network response, allowing an attacker to manage a user's usbscriptions. Steps To Reproduce: 1. Visit...

Mail.ru: Account TakeOver at my.33slona.ru

Logon via SMS code validation was not sufficiently protected against bruteforce in my.33slona.ru Common flaws of SMS auth: https://blog.deteact.com/common-flaws-of-sms-auth/...

Pornhub: Self-XSS to Good-XSS - pornhub.com

The researcher was able to bypass the site-wide clickjacking protection X-Frame-Options header in order to fully automate the exploitation of a self-xss vulnerability, allowing attackers to execute arbitrary javascript payloads on the pornhub domain through iframes hosted on a third-party website...

Mail.ru: SSRF in filtering on relap.io

Relap fetcher used to access external resources in relap.io project was not properly isolated from the production networks leaving potential for non-blind SSRFs. relap.io was in Ext.B scope on the moment of reporting...

Clario: XSS in https://affiliates.kromtech.com

Summary XSS in https://affiliates.kromtech.com Vulnerable URL: https://affiliates.kromtech.com/monetize-mac-traffic/adgroup/affiliatefixhello%22%3Ehello/type/affiliate Vulnerable Parameter: "URL Path" XSS Payload: hello"hello Steps To Reproduce: Navigate to the Vulnerable URL Notice the pop-up...

Mail.ru: Open Redirect

Hello Team Mail.ru Open Redirect on http://aw.mail.ru/ There is an Open Redirect on http://aw.mail.ru/dynamic/auth/?forumreg= due to the application not checking the value passed by the user to the "forumreg" parameter. User can be redirect to malicious site PoC: Open Redirect...

Internet Bug Bounty: Tcpdump before 4.9.3 has a buffer over-read in print-802_11.c (CVE-2018-16227)

Versions of tcpdump before 4.9.3 are vulnerable to a buffer over-read in print-80211.c. This vulnerability was disclosed to the tcpdump maintainers and was recently patched in version 4.9.3 and disclosed as CVE-2018-16227. I was credited with finding and disclosing this vulnerability:...

HackerOne: Disclosure of `payment_transactions` for programs via GraphQL query

Summary: payment transactions count of programs exposed Description: payment transactions details can be only accessed by program team members, but there is an flaw, with that, an unauthorized user can get payment transactions count of any program i have confirmed only with public program Steps T...

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...

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...

GitLab: Uncontrolled Resource Consumption in any Markdown field using Mermaid

Summary I found a bypass for the mitigation of DoS via Mermaid CVE-2019-9220. As the mitigation for CVE-2019-9220, the input limit of 5000 characters is currently applied to a Mermaid code block, but it can be bypassed by simply splitting the longer payload to many code blocks. Steps to reproduce...

Lark Technologies: Server Side Request Forgery

A SSRF server side request forgery vulnerability was found in the chat feature of Lark Suite on MacOS, which could have potentially been used to access services and web applications running on the internal network. We thank @jin0ne for reporting this to our team and confirming the resolution...

Internet Bug Bounty: Out-of-bounds read in iconv.c:_php_iconv_mime_decode() due to integer overflow

PHP upstream bug report: https://bugs.php.net/bug.php?id=78069 Description: In phpiconvmimedecode function in iconv.c, there's an out-of-bounds read due to an integer overflow vulnerability. MIME encoded string is being parsed and decoded in for loop with following condition: for strleft =...

Node.js third-party modules: environment variable leakage in error reporting

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 the leak of...

Midpoint (European Commission - DIGIT): Attacker can read password from log data

Summary: Attacker can read plain text password from log data. Steps To Reproduce: 1. From application dashboard choose Users section, I simultaneously ran process hacker to see the process disk write and read behavior. 2. change the password of one of the users, and you see in process hacker wind...

curl: libcurl: SMTP end-of-response out-of-bounds read - CVE-2019-3823

libcurl contains a heap out-of-bounds read in the code handling the end-of-response for SMTP. If the buffer passed to smtpendofresp isn't NUL terminated and contains no character ending the parsed number, and len is set to 5, then the strtol call reads beyond the allocated buffer. The read conten...

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...

RATELIMITED: Missing Protection Mechanism in Mail Servers allows malicious user to use staff.ratelimited.me email could lead to identity theft.

Hello ratelimited, I'm not really sure how your mail servers being configured but i guess there is a mis-configuration or missing protection mechanism that fails to verify if the email that is going to be sent are only made by authorized ratelimited staff only. From this point of view a malicious...

Nextcloud: Stored XSS/HTML injection in autocomplete suggestions for sharing

encrypted report, see attached GnuPG file. I tried to send this by mail, but [email protected] told me that I'm forced sic! to signup here. Please use 7F40 5A4F FAA3 F51B FEFD EE2F CE82 B2C8 6DCE BB9F to contact me. Impact encrypted report, see attached GnuPG file...

Internet Bug Bounty: Buffer over-write in finfo_open with malformed magic file.

https://bugs.php.net/bug.php?id=71527 This bug causes a segfault when running with environment variable USEZENDALLOC set to 0, and also when compiled with ASAN with USEZENDALLOC set and unset. To reproduce, run the following PHP file, with the example magic file below. $ cat magic-open.php Magic...

Nextcloud: Retrieval and alteration of exposed media on Android Oreo

Good afternoon. Any media downloaded from the cloud server within the Android app is subject to third party modification and server re-upload without explicit user consent. This happens at least on Android Oreo, as data is automatically stored on shared folder...

Chaturbate: Missing Rate Limitation at /photo_videos/photoset/create

Hello,I discovered that one is able to create an unlimited number of albums Via /photovideos/photoset/create/ Steps To Reproduce: 1.Login And Go to http://fr.chaturbate.co /photovideos/photoset/create/ 2.Fill the form 3.Enable a proxy interception tool e.g Burp Suite 4.Click Save 5.Send the POST...

Mail.ru: ******.*****.my.com open proxy

A proxy host in my.com domain related to partner service located in external network was misconfigured as an open proxy...

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...

Miniclip: xss in miniclip.com

I know this is out of scope but I thought maybe you would like to know about it. video attached Impact Steal session cookies, install keylogger etc etc...

Brave Software: RCE: DnDing shortcut files to chrome://brave allows loading HTML files in Muon's context

Summary: \395737 has shown that Brave supports chrome://brave/ URLs. The Brave team introduced a patch which blocks navigation to chrome://brave and removed chrome.remote.require to prevent command execution on the machine. Navigation to chrome://brave via shortcut files From my understanding: 1...

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...

Chaturbate: Account Takeover via billing

The hacker found that when subscribing to a fanclub the parameters could be manipulated to purchase a fanclub subscription for another user. This will set the email of the target account if they had no email on file. This could then be used to reset the password for the target user. The purchasin...

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...

New Relic: Missing security best practices (leads to further impact)

Vulnerabilities:- 1.Use of old passwords is possiblecurrent password can be used as new password. 2.Email notification is not being sent to linked mail account while changing passwords steps to reproduce the two issues create account with password example badcracker@123 change password to...

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...

Liberapay: A single user can subscribe a community multiple times

There is no proper validation while subscribing for a community. A user can subscribe a single community multiple times. Steps to recreate: Step 1: Open any community Step 2: Click on subscribe button Step 3: Capture the POST request and submit it multiple times Step 4: Check the subscription cou...

Node.js third-party modules: Arbitrary File Write through archive extraction

I would like to report arbitrary file write vulnerability in adm-zip module It allows attackers to write arbitrary files when a malicious archive is extracted. More info here: https://snyk.io/research/zip-slip-vulnerability https://github.com/snyk/zip-slip-vulnerabilityaffected-libraries Module...

Valve: Unfiltered input allows for XSS in "Playtime Item Grants" fields

Enter "test in any of the 3 fields, save it and reload the page. Impact Stored XSS, could possibly break some internal features too as the stored value is not an integer. The hacker selected the Cross-site Scripting XSS - Stored weakness. This vulnerability type requires contextual information fr...

HackerOne: Harvesting all private invites using leave program fast-tracked invitation and security@ email forwarding feature

Hi HackerOne, Summary: I have found a way that it is possible to harvest all private invitation using the new Leave Program feature together with the security@ email forwarding feature without any user interaction. --- Description: First, when the program activated the security@ email forwarding ...

Reverb.com: Persistent XSS in https://sandbox.reverb.com/item/

Description I found a Persistent XSS in a listing page. The flaw is in the SoundCloud link that the listing owner can attachThe parameter is called productsoundcloudlinkattributeslink. There's no encoding on the user input and it looks like there's only client-side validation. PoC The payload:...

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...

Valve: Xss was found by exploiting the URL markdown on http://store.steampowered.com

Hello guys I found an xss vulnerability on store.steampowered.com markdown POC http://store.steampowered.com/widget/386360/?t=url=google.com:/onclick=%27alertdocument.domain%27url=xss/url Here is my exploit url=google.com:/onclick='alertdocument.domain'url=xss/url Steps 1 - go to any product 2 -...

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: error

Useless logs. Сначало был информатиФФФФ потом лог удалили и ресолвед бат ноу баунти...

VK.com: Opcode Cache

Раскрытие имен некоторых файлов...

Internet Bug Bounty: SSL_peek() hang on empty record (CVE-2016-6305)

As described here: https://www.openssl.org/news/secadv/20160922.txt...

RubyGems: Remote code execution on rubygems.org

When parsing a gem POSTed to the /api/v1/gems endpoint, the rubygems.org application immediately calls Gem::Package.newbody.spec inside app/models/pusher.rb. The authors of the application correctly observed that parsing untrusted YAML is dangerous since it can serialize more or less arbitrary...

RubyGems: Request Hijacking Vulnerability in RubyGems 2.6.13 and earlier

We received this report via security@ from [email protected], I'm filing here for tracking and visibility purposes... "I was looking at commit 8d91516fb7037ecfb27622f605dc40245e0f8d32, which was the fix for the DNS hijacking issue CVE-2017-0902. The function still handles the DNS response in ...

Grab: www.drivegrab.com SQL injection

Summary: The website uses a WordPress plugin called Formidable Pro. I found an SQL injection in the plugin code. Description: The plugin allows the site admin to create forms to be filled by users. For this end it implements some AJAX functions, including one to preview or actually just view a...

Aspen: client_secret Token disclosure

Greetings, I think I've discovered a clientsecret token disclosure. Proof of concept: 1. Go to https://github.com/AspenWeb/experimental-javascript-version/blob/master/www/blog/index.html 2. At the line 6, a clientsecret token it's disclosed...

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...

Nextcloud: Banner Grabbing - Apache Server Version Disclousure

Hello Nextcloud, I'd like to report a nice little bug. Banner Grabbing is a technique used to gain information about a remote server. Additionally, this technique is use to get information about remote servers. I've captured the HTTP request while visiting https://customerupdates.nextcloud.com an...