Nextcloud: Group admins can remove arbitrary data from "data" directory (including admin data)

Steps to reproduce: 1. Create a new user and make him an admin of an arbitrary group 2. Log in as this new user 3. Create a new user "filesexternal", "appdatarandom-data", .. 4. Delete this user Result: The data/filesexternal / data/appdata.. folder is removed. Solution: Prevent creation of users...

Mail.ru: ICQ for macOS: lack of `com.apple.quarantine` meta-attribute on downloaded files leads to GateKeeper/Quarantine bypass for downloaded executables

Summary Quarantine & GateKeeper are important macOS security mechanisms, which prevent user/device from running unsigned executables and warn users about executables downloaded from the remote. Conceptually, Quarantine & GateKeeper are similar to MOTW on Windows. Applications that could download...

Mail.ru: сервант статус

Apache server status was available at jw-cn-test-1.ext.terrhq.ru...

Zendesk: Blind XSS via Suspended Ticket Recovery

A cross-site scripting XSS vulnerability was reported to us. We validated the issue, investigated to ensure it wasn't exploited, and implemented a remediation to all customers. Big thanks to @trimatra-sec who was a pleasure to work with!...

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...

Passit: app.passit.io is vulnerable against username enumeration

Summary: The application app.passit.io is vulnerable against username enumeration through the use of error messages and dictionary attack. Description: We noted that the application uses GET request with a rate limit of 60 seconds which is too broad. The application returns an error message that...

Ed: Physical Laptop Takeover

At 6:16PM of August 11th of 2018, during H1-702, right before the sand storm beat the shit out of the rooftop party, we managed to perform a critical attack on Ed's infrastructure. F332214 Report Summary During our analysis and reconnaissance of how Ed program worked during the h1-702 event, we...

Nextcloud: HTML injection with AutoComplete suggestions

As user1 set your displayname to Name 2. As user2 autocomplete the name in the comments input or Talk chat input 3. Click on the user name you just autocompleted User2 is redirected to https://nextcloud.com Only works with HTML, not with script Impact User1 can trick user2 to render any html...

Ed: Session cookie missing SecureFlag on git.edoverflow.com.

Assigned to:-ED Assigned by:- Kirtikumar Anandrao Ramchandani Assigned on:- 01/05/2018 Bug overview:- Session Cookie without secure flag. Cookie Name:- gitlabsession Description:-Risk description: Since the Secure flag is not set on the cookie, the browser will send it over an unencrypted channel...

Unikrn: CSRF logs the victim into attacker's account

Description: There is no session validation while logging in which leads to csrf. Steps To Reproduce: 1. Create a CSRF login POC using the following code. 2. Replace the email and password with the valid credentials. 3. Send the script to the victim to make them click. References: 1. You've...

Shopify: Potential to abuse pricing errors in saved carts

If someone abandons a shopping cart and the price changes between that time and when the abandoned cart recovery email is sent, the saved cart will always show the old price. If saved carts do not expire, this can create a situation where bad actors can fill and save shopping carts with sale pric...

HackerOne: Invalid Phabricator API token revealed through error message when escalating a report

Summary While trying to create a phabricator task by escalating to phabricator, error message contains the API token as a part of the pop up. This is seen when a user tries to enter an invalid API token. Description It was seen that after setting up phabricator integration in a program, when tryi...

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:...

HackerOne: Extra program metrics disclosed via /PROGRAM_NAME json response

Summary: The response to www.hackerone.com/PROGRAM.json includes slamissedcount slafailedcount and researchercount. Description: Viewing the response from a program's json endpoint includes the values for slamissedcount, slafailedcount and researchercount. With regards to the SLA metrics, these a...

U.S. Dept Of Defense: SSRF on █████████ Allowing internal server data access

Summary: An end point on ██████ allows an internal access to the network thus revealing sensitive data and allowing internal tunneling Description: OAuth Plugin allows you to provide a url that gives a snap shot of the web page. We can pass internal URLS and conduct SSRF. Impact Critical...

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 -...

VK.com: Opcode Cache

Раскрытие имен некоторых файлов...

Unikrn: [unikrn.com] Profile updated with error":true,"success":false"

Greetings, We noticed that even if the https://unikrn.com/apiv2/user/updateprofile gave an answer that the code is on error , the post is proceeded : PoC : -- curl 'https://unikrn.com/apiv2/user/updateprofile' -XPOST -H 'Referer: https://unikrn.com/profile' -H 'Content-Type: application/json' -H...

Inflection: Reflected Cross-site Scripting Vulnerability via JSON Error Message

Researcher uncovered a vulnerability where invalid JSON input was reflected back in the server error response. A specially-crafted invalid JSON request could then be used to trigger a reflected XSS on any page where the server error response was rendered in HTML...

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...

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...

Razer US: Reflected XSS on the https://deals.razerzone.com/json/translation endpoint

Thanks to SP1D3RS for the great report and working with the team on this one. This was a trivial POST-XSS, caused by using text/html Content-Type on the JSON endpoint, and ability to control the part of the response using unsanitized input. Why I disclosed it if this is a trivial issue? I pretty...

Coinbase: New Device Confirmation Bug

Device auto-confirmation appeared to be an issue, but was intended functionality...

Slack: The Custom Emoji Page has a Reflected XSS

The Custom Emoji Page has a Reflected XSS in building flash message. The following is the PoC. https://team.slack.com/customize/emoji?added=1&name=vuln"alert0;...

Coinbase: Device confirmation Flaw

Devices being auto-confirmed in an unexpected way looked like a security bug but was intended functionality...

Unikrn: Escaping images directory in S3 bucket when saving new avatar, using Path Traversal in filename

Thanks again @sp1d3rs, also for the summary. Nothing to add from our side except maybe for the wish for more reports having this quality. Final comment: nothing from that bucket was ever exposed to any user except the uploader, also nothing in the bucket is there for real archiving purposes. I wa...

ExpressionEngine: Image lib - unescaped file path

Under ./system/ee/legacy/libraries/Imagelib.php There are function from CodeIgniter to manipulate images. The issue is that the PHP function exec is used two times in two different functions: imageprocessimagemagick and imageprocessnetpbm In both cases the fullsrcpath and fulldstpath are given...

Ubiquiti Inc.: Privilege Escalation with Session Hijacking Having a Non-privileged Valid User

EdgeOS version 1.9.1.1 and prior, consequence of lack of protection if the file-system, exposing sensitive information, an attacker with access to an operator read-only account, can escalate privileges to admin root access in the system...

shopify-scripts: Null pointer dereference with send/method_missing

The following program triggers a null pointer dereference with mruby b200c747: ruby def methodmissingm ensure begin A rescue break rescue end end send '' ASAN report: text ASAN:DEADLYSIGNAL ================================================================= ==12116==ERROR: AddressSanitizer: SEGV on...

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...

Uber: lert.uber.com: Few default folders/files of AURA Framework are accessible

There were a few default folders/files of the AURA Framework accessible on lert.uber.com. The specified files/folders in the AURA framework were supposed to be accessible, so we did not make any changes here. However, we do appreciate the time taken to submit this report and are disclosing per th...

Envoy: Primary Cloning of Envoy web application resulting confidential information disclosure

It is possible to mirror envoy website which exposes internal structure as also client side java-script and CSS . When an attacker makes a copy of your webpages on their local machine, it is possible scan the code for vulnerabilities to exploit without generating additional traffic on your web...

U.S. Dept Of Defense: Remote code execution vulnerability on a DoD website

A remote code execution RCE vulnerability was found on a DoD website which could have enabled an attacker to execute remote commands on the web server. Thank you @korprit for notifying us of this vulnerability!...

LocalTapiola: Reflected XSS and Open Redirect in several parameters (viestinta.lahitapiola.fi)

Basic report information Summary: Hi, The values within the ctx tag, are not filtered, they are reflected inside a javascript code in http://viestinta.lahitapiola.fi/webApp/APP3242, which can be exploited to perform an XSS Attack. The parameter are: ctxothersDrivingmagallupcount...

Coinbase: Window.opener bug at www.coinbase.com

Window.Opener Bug Description: When you open a link in a new tab target="blank" , the page that opens in a new tab can access the initial tab and change it's location using the window.opener property. Browsers Verified In: Mozilla Firefox Steps To Reproduce: 1. Visit https://www.coinbase.com/ 2. ...

Rockstar Games: DOM based reflected XSS in rockstargames.com/newswire/tags through cross domain ajax request

Hi, I have found a reflected XSS issue in http://www.rockstargames.com/newswire/tags which is , IMO , somekinda tricky. PoC: - URL: http://www.rockstargames.com/newswire/tags/?tags=%2e%2e%2e%2e%2e%2e\commentsdal\users\getGlobalLoginSettings%2ejson?callback=alert%2fxss%2f;%2f%2f - Vulnerable...

Internet Bug Bounty: Additional information for CVE-2016-5699

I was not the first to report this issue, but the fix languished for quite some time, since no one realized quite how bad it was. I wasn't aware of the original bug report and discovered the issue independently. I was the first to report the much more serious consequences of it. The vulnerability...

QIWI: [lk.contact-sys.com] SQL Injection reset_password FP_LK_USER_LOGIN

Steps to reproduce 1 Открыть https://lk.contact-sys.com/index.php/LK/login 2 Нажать "Забыли пароль?" 3 Заполнить форму Код Участника: test Логин: ' and @@version=1 and '1'='1 HTTP Request http POST /index.php/LK/resetpassword HTTP/1.1 Host: lk.contact-sys.com Content-Type:...

drchrono: SSL/TLS BEAST ATTACK

Supported versions: TLSv1.0 TLSv1.1 TLSv1.2 Deflate compression: no Supported cipher suites ORDER IS NOT SIGNIFICANT: TLSv1.0 RSAWITH3DESEDECBCSHA RSAWITHAES128CBCSHA RSAWITHAES256CBCSHA TLSECDHERSAWITH3DESEDECBCSHA TLSECDHERSAWITHAES128CBCSHA TLSECDHERSAWITHAES256CBCSHA TLSv1.1: idem TLSv1.2...

Internet Bug Bounty: Adobe Flash Player ContentFactory class Memory Corruption Vulnerability

I. Summary Adobe Flash Player is prone to a vulnerability which leads to memory corruption because of improper validation of ContentFactory.retrieveAdPolicySelector. ------------------------------------------------------------------ II. Description Adobe Flash is a multimedia and software platfor...

Dropbox: Possible SQL injection can cause denial of service attack

Hi there, The https://www.dropbox.com// Double slash request returns Internal Server Error 500 Error and doesn't returns 404 so i believe it may be an injection. https://www.dropbox.com//shell.php any text added after the double slash will cause the same thing . It is a valid bug an should be...

Ruby on Rails: Validation bypass for Active Record and Active Model

Possible Input Validation Circumvention in Active Model There is a possible input validation circumvention vulnerability in Active Model. This vulnerability has been assigned the CVE identifier CVE-2016-0753. Versions Affected: 4.1.0 and newer Not affected: 4.0.13 and older Fixed Versions:...

Coinbase: XXE in OAuth2 Applications gallery profile App logo

upload svg photo XML based as App logo contain XML payload renamed to .jpg server start execute this XML payload or just watch this video "https://www.dropbox.com/s/wkba6f0wrax0wr8/xxe.mp4?dl=0" the same vulnerability was in https://www.coinbase.com/careers and reported by...

ok.ru: Same-Origin Policy bypass on main domain - ok.ru

Hello, I've just found a way to bypass Same-Origin Policy mechanism using vulnerability in one of swf files on your cdn. Let me explain this in details: 1. First of all - your Crossdomain which defines from what domains Flash files can read content on ok.ru. Crossdomain file is located here -...

Radancy: RC4 cipher suites detected

A group of researchers Nadhem AlFardan, Dan Bernstein, Kenny Paterson, Bertram Poettering and Jacob Schuldt have found new attacks against TLS that allows an attacker to recover a limited amount of plaintext from a TLS connection when RC4 encryption is used. The attacks arise from statistical fla...

Shopify: Arbitrary read on s3://shopify-delivery-app-storage/files

Short ==== An attacker is able to read arbitrary files from the delivery app storage if the bucket key is known to him. Vector ==== 1 The victim uploads a.png to a product his shop located at https://myhackeronestore.myshopify.com. 1a The file is stored at...

Envoy: [dashboard.signwithenvoy.com] Open Redirect

Open redirect via Request-URI PoC: https://dashboard.signwithenvoy.com//www.google.com/%2e%2e%2f HTTP Response: HTTP/1.1 303 See Other ... Location: //www.google.com/%2e%2e%2f/...

Automattic: Missing HSTS header in https://app.simplenote.com

Hi, Vulnerable Website: https://app.simplenote.com I tested the website using firefox add-on called: Strict Transport Security Detector https://addons.mozilla.org/en-US/firefox/addon/strict-transport-security-d/ HSTS addresses the following threats: User bookmarks or manually types...

Faceless: Account hijacking possible through ADB backup feature

It was found that if an attacker had access to an unlocked phone, they could take any data from the application's sandbox through ADB's backup feature. Normally ADB backup allows applications to be backed up to the cloud. This means that if a user replaces or wipes their phone, they can restore a...

Phabricator: CSRF token valid even after the session logout of a particular user

Hi, To reproduce the issue: 1 Login to your https://secure.phabricator.com account and copy your Anti CSRF token. 2 Now logout and again login after sometime. 3 Open up your burp suite to modify the request and now submit any form with your old CSRF token. The request will be completed. So let's...