curl: Invalid write (or double free) triggers curl command line tool crash

Summary: Whilst fuzzing libcurl built from git commit a158a09, a crash triggered by an invalid write or maybe a double/invalid free was found. Steps To Reproduce: Run: echo "LVQvCnVyIDA=" | base64 -d test0000 ./curl --verbose -q -K test0000 file:///dev/null Stack: valgrind -q src/curl --verbose -...

Visma Bug Bounty Program: [IDOR]Ability to Pause & Resume the Invoice of other users If GUID is known.

Insecure Direct Object Reference IDOR vulnerability is discovered via a certain endpoint and the application exposes a reference to an internal implementation object. It reveals the real identifier and format/pattern used of the element in the storage backend side...

GlobaLeaks: Since no defined tries for incorrect answer, an attacker can brute the answers and post a submission

Logic of the attack pass 50 answers for per token.. if within the 50 answers this can be increased for more success rate, if there's a valid. the token becomes usable. and then submit the submission POST data. Screenshot of script running F733033 Screenshot of inbox F733034 Mitigation This can be...

Shopify: Reverse Proxy misroute leading to steal X-Shopify-Access-Token header

Hello Shopify team! I found out that on /admin/api/graphql endpoint server fetches content of Host header value $HTTPHost + /admin/api/graphql. If my own host was sent to server, request comes from ██████████or ██████████ your google cloud cluster. Also I can grab all reverse proxy headers...

Zomato: [Zomato's Blog] POST based XSS on https://www.zomato.com/blog/wp-admin/admin-ajax.php?td_theme_name=Newspaper&v=8.2

Issue details: POST based XSS Vulnerable URL: https://www.zomato.com/blog/wp-admin/admin-ajax.php?tdthemename=Newspaper&v=8.2 Vulnerable Parameter: loopStatemoduleId Payload: promptdocument.domain Steps to reproduce: As this is a post based you need to create a html csrf to trigger xss. HTML code...

HackerOne: Hacker.One Subdomain Takeover

Hello HackerOne Sec Team, Description : This report is about domain takeover of hacker.one via instapage 0day issue which i just found . Step To Verify : + Visit : https://www.hacker.one + You will see some html updated by me. Impact : + as its one of offical website of hackerone , so attacker ca...

Internet Bug Bounty: Use After Free Vulnerability in session deserializer

https://bugs.php.net/bug.php?id=70219...

Internet Bug Bounty: Use of uninitialized value of in req_parsebody method of lua_request.c

Software Versions Ubuntu - 18.04 64-bit Apache 2.4.51 - 64 bit Cause of Bug This bug is present in the reqparsebody method of luarequest.c file. Below mentioned lines of code cause this bug. cpp const char data; int i; sizet vlen = 0; sizet len = 0; if luareadbodyr, &data, aprofft &size,...

GitHub Security Lab: [codeql-go]: Add query to find use of constant state parameter in Oauth2 flow

This bug was reported directly to GitHub Security Lab...

Shopify: Shopify Stocky App OAuth Misconfiguration

@vulnh0lic noticed that a staff member without Apps permission was able to access the Stocky app. We determined that this was because of a bug in Stocky's OAuth authentication code, which allowed the user to be granted access to Stocky at the start of the OAuth process rather than the end. This...

Pornhub: Unsecured Grafana instance

The researcher has found a Grafana instance accessible to the public. User sign-up was left open which allowed him to open an account and access charts on various server resource usage. This report is considered out-of-scope but Pornhub chose to reward the researcher due to the severity of the...

HackerOne: Unintended HTML inclusion as a result of https://hackerone.com/reports/110578

Hi, I was just reading https://hackerone.com/reports/110578 and testing out the changes. I had previously noticed that the editor would take something like: test and turn it into : test In other words, the code would recursively look at what should be the title string and use the first single or...

curl: CVE-2023-27534: SFTP path ~ resolving discrepancy

A vulnerability CVE-2023-27534 existed in libcurl's Curlgetworkingpath function, which resolved as remote users' home directory in an undocumented way for the sftp protocol. This could lead to unexpected final paths for sftp access, allowing an attacker with partial path access to gain access to...

U.S. Dept Of Defense: [█████] Bug Reports allow for Unrestricted File Upload

Unrestricted file upload was possible through the bug report feature of a web page, allowing an attacker to attach a malicious file to a bug report and execute malware on the support agent's system. The web server did not validate the extension and size of the uploaded file...

Node.js: Multiple OpenSSL error handling issues in nodejs crypto library

Multiple OpenSSL error handling issues were discovered in the Node.js crypto library up to version 19.2.0. The library did not clear the OpenSSL error stack after operations that may set it, which could lead to false positive errors during subsequent cryptographic operations that happen to be on...

Nord Security: Email address is not validated, No Rate Limit and RCE On Forgot Password Page Of affiliates.nordvpn.com

Go to https://affiliates.nordvpn.com/users/forgotpassword. Enter arbitrary string like %0a or %0a%0d as email. It says, No user account was found for the address given, which proves the query are going till the database. Intercept request using Burp Interceptor, copy to intruder Copy some 300...

Semrush: Open redirect in semrush.com

Summary: There is an open redirect on https://www.semrush.com/login/?redirectto=. By using /\ at the start of the link, you can bypass the open redirect filter. Description: An attacker can control the value of the "redirectto" parameter and make it redirect to a malicious endpoint. Steps To...

ok.ru: Multiple critical vulnerabilities in Odnoklassniki Android application

Hello, I have recently found several critical vulnerabilities in Odnoklassniki Android application, which is one of your projects, thus I am reporting it here. The first vulnerability is so called Intent spoofing. The vulnerability lies in ability to start the video upload activity of Odnoklassni...

U.S. Dept Of Defense: DOM-XSS

A DOM-XSS vulnerability was found on a subdomain of a website, which could allow an attacker with access to the Siteminder CA to perform a cross-site scripting attack and cause information leaks, privilege escalation, and/or denial of service. The vulnerability was assigned CVE-2013-5968 and a...

Internet Bug Bounty: Electron CVE-2022-35954 Delimiter Injection Vulnerability in exportVariable

Describe the summary: The Electron Website provides a set of packages to make creating actions easier. The core.exportVariable function uses a well known delimiter that attackers can use to break out of that specific variable and assign values to other arbitrary variables. Workflows that write...

Internet Bug Bounty: CVE-2021-3711: SM2 decrypt buffer overflow

CVE-2021-3711 In order to decrypt SM2 encrypted data an application is expected to call the API function EVPPKEYdecrypt. Typically an application will call this function twice. The first time, on entry, the "out" parameter can be NULL and, on exit, the "outlen" parameter is populated with the...

GitHub Security Lab: [JAVA]: CWE-347 - Improper Verification of Cryptographic Signature : Potential for Auth Bypass

This bug was reported directly to GitHub Security Lab...

GitHub Security Lab: ihsinme: CPP add query for CWE-788 Access of memory location after the end of a buffer using strlen.

This bug was reported directly to GitHub Security Lab...

GitHub Security Lab: [Java] CWE-489: Query to detect main() method in Java EE applications

This bug was reported directly to GitHub Security Lab...

Weblate: Secret_key in GitHub

hello I have found secretkey in GitHub is public and noticed something this key have comment Make this unique, and don't share it with anybody. and it's public in GitHub also I noticed this file has coding to do the payment.db I think information like this must be private SECRETKEY =...

U.S. Dept Of Defense: Exposed Docker Registry at https://████

Summary: The docker registry at https://██████ has no authentication in place and is therefore exposed to the public. This leads to full disclosure of all available docker containers, the possibility to upload docker container and manipulate and delete existing docker containers. Description: Fro...

U.S. Dept Of Defense: RCE (Remote code execution) in one of DoD's websites

Summary: The targeted website is vulnerable to CVE-2017-1000486, by only running command was whoami to prove that the RCE exist has been run successfully on the target Description: The target uses a vulnerable version of primefaces : Primetek Primefaces 5.x, that is vulnerable to a weak encryptio...

Nextcloud: Nextcloud Clickjacking Vulnerability

hi! Test domain : https://nextcloud.com Summary ====== https://nextcloud.com/ A clickjacking vulnerability was detected because the X-Frame-Options Header was not set.More Steps To Reproduce == 1. Create a new HTML file 2. Include the following payload Trusted web page https://nextcloud.com 3. Op...

Node.js third-party modules: Prototype pollution attack (lodash / constructor.prototype)

I would like to report a prototype pollution vulnerability in lodash. It allows an attacker to inject properties on Object.prototype. Module module name: lodash version: 4.17.10 npm page: https://www.npmjs.com/package/lodash Module Description The Lodash library exported as Node.js modules. Modul...

Discourse: XSS Vulnerability on Image link parser

I found a XSS Cross-Site Scripting vulnerability, and it is present in the markdown parser when it tries to parse an image URL. To reproduce the vulnerability you need to add a fake image url like: http://host/path/to/image'onerror=alert1;//.png As you can see, we have an invalid image URL which...

Trello: Full Sub Domain Takeover at help.trello.com.

Hey The subdomain http://help.trello.com./ uses helpscout to host docs While helpscout does not distinguish between help.trello.com. and help.trello.com Notice trailing dot I created a test page and hosted it for help.trello.com. and since DNS entry is already present http://help.trello.com./ now...

Greenhouse.io: SMTP protection not used (please read carefully )

Details: Companies like Coinbase, Yahoo,Google,Facebook and even hackerone implemented a strict email security policy combining SPF, DKIM, and DMARC but I don't see taht from mailgreenhouse.ioru , You should apply strict SMPT policy to stop spoofed email sending from your domain. POC is attached...

Coinbase: Improper Validation of the Referrer header leading to Open URL Redirection

Using a proxy tool such as Burp, set the Target as https://coinbase.com. Then, send the following request: GET /cdn-cgi/l/chkjschl HTTP/1.1 Host: coinbase.com Referer: http://attacker.com Content-Length: 2 Notice the attacker's domain in the Referrer header. This value is not being validated on t...

U.S. Dept Of Defense: LDAP Server NULL Bind Connection Information Disclosure

The LDAP server allowed anonymous access, which could lead to information disclosure. Attackers could exploit this vulnerability to gain access to sensitive information. The recommended mitigation is to configure the service to disallow NULL BINDs...

curl: CVE-2023-27536: GSS delegation too eager connection re-use

A vulnerability existed in libcurl that could allow the reuse of previously established connections when more strict or no delegation was requested, due to different CURLOPTGSSAPIDELEGATION options not being taken into consideration. An attacker could potentially exploit this vulnerability to...

Nextcloud: nextcloudcmd incorrectly trusts bad TLS certificates

Ref: https://github.com/nextcloud/desktop/issues/4927 Bug description I have a self hosted Nextcloud instance using my own private CA for TLS certs. When running nextcloudcmd without the --trust, it disregards the cert validation failure as "This is not an actual error" and proceeds with the sync...

Node.js: Node.js Certificate Verification Bypass via String Injection

This is a report on behalf of Google, who did not want to report through H1. --- Summary Node’s APIs for reporting certificate fields are ambiguous and allow bypassing certificate verification in some circumstances. Details In light of CVE-2021-3712, I’ve been looking at code which misuses...

8x8: Exposed PHP dependencies at ██.8x8.com

A limited amount of hosts were exposing the PHP vendor directory, which exposed names of internal packages & dependencies. The issue has been rectified...

Mail.ru: Unrestricted file upload on [ambassador.mail.ru]

PHP code execution was possible via file upload functionality in ambassador.mail.ru An attacker was able to execute arbitrary PHP code on the server through the image uploading functionality. The vulnerability was quickly fixed by the Mail.ru team...

Revive Adserver: Open redirection bypass in /www/admin/campaign-modify.php

Description - There is an open redirect on /www/admin/campaign-modify.php?returnurl= F713773 - By using //// at the start of the link, you can bypass the open redirect filter. - example: /www/admin/campaign-modify.php?clientid=&campaignid=&returnurl=%2F%2F%2F%2Fhackerone.com Impact This...

Shopify: Stored XSS in Shopify Chat

1.install app Shopify Chat 2.Click chat on the shop homepage or Shopify Ping to send poc javascript:alert1//https://dqdqdqdqdq.myshopify.com 3.Click url, alert F657395 Impact 1.Front end user Self-XSS 2.Administrator XSS foreground user...

PUBG: RXSS to Stored XSS - forums.pubg.com | URL parameter

René Kroka found a Reflected XSS vulnerability that could be chained to a Stored XSS attack in the Invision Community forums software used by PUBG. By crafting a malicious URL the attacker is able to trigger Javascript to execute on their own page; known as Reflected XSS. The attacker then create...

Nextcloud: WordPress Vulnerabilities: User Enumeration, Vulnerable Akismet Plugin, XML-RPC Interface available

User Enumeration: It is possible to enumerate four WordPress usernames jancborchardt, jos, lukasreschke, frank. An attacker can use these username to carry out brute-force attack in order to forcefully authenticate. 2. Akismet Plugin2.5.0-3.1.4 vulnerable to unauthenticated Stored Cross Site...

Uzbey: Breach Attack Vulnerability

Breach Attack Vulnerability Respected Sir/Madam I Hope Your Cooperate With Me Cause It's Not Easy To Find Vulnerability On Your Official Website. Vulnerability description This web application is potentially vulnerable to the BREACH attack.An attacker with the ability to: Inject partial chosen...

Mozilla: Private Emails of Moz Workers Leaked in Public file

Vulnerability description not provided...

U.S. Dept Of Defense: critical information disclosure

Description: hey all , I have found critical information through this endpoint ████ on ███████ DB credentials such as DBNAME,DBUSER,DBPASSWORD,DBHOST, etc.. Impact full access control on DB service on website System Hosts ███ Affected Products and Versions CVE Numbers Steps to Reproduce Go to...

Node.js third-party modules: Prototype pollution in multipart parsing

I would like to report a prototype pollution attack in fastify-multipart it allows to crash a remote server parsing multipart requests by sending a specially crafted request. Module module name: fastify-multipart version: all versions before Detailed steps to reproduce with all required...

h1-ctf: [h1-415 2020] Multiple chained vulnerabilities lead to leaking secret document

Hi! Summary Multiple chained vulnerabilities lead to leaking secret documents. Improper sanitization in registration allows an attacker to create a QR recover code for any email address. This leads to an account takeover. Using that technique on jobert's account, attacker can access the support...

Snapchat: CRLF Injection at vpn.bitstrips.com

HI I found that the site https://vpn.bitstrips.com/ is vulnerable to a CRLF Injection. By injecting a Carriage Return and Line Feed character, we are able to make the server issue a set-cookie header. GET Request : https://vpn.bitstrips.com/sessionstart/%0aSet-Cookie:maliciouscookie1 Host:...

Nextcloud: Possibility to force an admin to install recommended applications

Summary: Endpoint /nextcloud/index.php/core/apps/recommended is accessible via GET http method and doesn't check anti-csrf token. If an admin visits this endpoint in a browser the process of installation of recommended applications begins immediately. Steps To Reproduce: 1. an attacker creates a...