Vulnerability Scan Result
| Title: | Dropbox |
| Description: | No description found |
| IP address | 162.125.69.18 |
| Country | US  |
| AS number | AS19679 |
| Net name | Dropbox Inc |
No open ports were found.
| Software / Version | Category |
|---|---|
| Canny | Issue trackers |
| HTTP/3 | Miscellaneous |
| PayPal | Payment processors |
| Sentry | Issue trackers |
| DigiCert | SSL/TLS certificate authorities |
| Envoy | Reverse proxies |
| Lodash | JavaScript libraries |
| HSTS | Security |
Web Application Vulnerabilities
Evidence
| URL | Cookie Name | Evidence |
|---|---|---|
| https://www.dropbox.com/scl/fo/sybxcihecaf6i5g5xowpg/aodxpw22dkkmt-czeg31_ry | locale | Set-Cookie: locale=en |
Vulnerability description
We found that a cookie has been set without the Secure flag, which means the browser will send it over an unencrypted channel (plain HTTP) if such a request is made. The root cause for this usually revolves around misconfigurations in the code or server settings.
Risk description
The risk exists that an attacker will intercept the clear-text communication between the browser and the server and he will steal the cookie of the user. If this is a session cookie, the attacker could gain unauthorized access to the victim's web session.
Recommendation
Whenever a cookie contains sensitive information or is a session token, then it should always be passed using an encrypted channel. Ensure that the secure flag is set for cookies containing such sensitive information.
Classification
| CWE | CWE-614 |
| OWASP Top 10 - 2017 | A6 - Security Misconfiguration |
| OWASP Top 10 - 2021 | A5 - Security Misconfiguration |
Evidence
| URL | Cookie Name | Evidence |
|---|---|---|
| https://www.dropbox.com/scl/fo/sybxcihecaf6i5g5xowpg/aodxpw22dkkmt-czeg31_ry | __Host-js_csrf, locale | The server responded with Set-Cookie header(s) that does not specify the HttpOnly flag: Set-Cookie: __Host-js_csrf=myFV6DtYzwvIo-foDnrEEGUw Set-Cookie: locale=en |
Vulnerability description
We found that a cookie has been set without the HttpOnly flag, which means it can be accessed by potentially malicious JavaScript code running inside the web page. The root cause for this usually revolves around misconfigurations in the code or server settings.
Risk description
The risk is that an attacker who injects malicious JavaScript code on the page (e.g. by using an XSS attack) can access the cookie and can send it to another site. In case of a session cookie, this could lead to session hijacking.
Recommendation
Ensure that the HttpOnly flag is set for all cookies.
Classification
| CWE | CWE-1004 |
| OWASP Top 10 - 2017 | A6 - Security Misconfiguration |
| OWASP Top 10 - 2021 | A5 - Security Misconfiguration |
Evidence
| URL | Evidence |
|---|---|
| https://www.dropbox.com/scl/fo/sybxcihecaf6i5g5xowpg/aodxpw22dkkmt-czeg31_ry | Response headers include the HTTP Content-Security-Policy security header with the following security issues: |
Vulnerability description
We noticed that the Content-Security-Policy (CSP) header configured for the web application includes unsafe directives. The CSP header activates a protection mechanism implemented in web browsers which prevents exploitation of Cross-Site Scripting vulnerabilities (XSS) by restricting the sources from which content can be loaded or executed.
Risk description
For example, if the unsafe-inline directive is present in the CSP header, the execution of inline scripts and event handlers is allowed. This can be exploited by an attacker to execute arbitrary JavaScript code in the context of the vulnerable application.
Recommendation
Remove the unsafe values from the directives, adopt nonces or hashes for safer inclusion of inline scripts if they are needed, and explicitly define the sources from which scripts, styles, images or other resources can be loaded.
Classification
| CWE | CWE-693 |
| OWASP Top 10 - 2017 | A6 - Security Misconfiguration |
| OWASP Top 10 - 2021 | A5 - Security Misconfiguration |
Evidence
| URL | Method | Vulnerable Parameter | Evidence |
|---|---|---|---|
| https://www.dropbox.com/scl/fo/sybxcihecaf6i5g5xowpg/aodxpw22dkkmt-czeg31_ry | GET | rlkey (Query Parameter) | Possible session token |
| https://www.dropbox.com/scl/fo/sybxcihecaf6i5g5xowpg/aodxpw22dkkmt-czeg31_ry | GET | rlkey (Query Parameter) | Possible session token |
Vulnerability description
We found a possible session token exposed in an URL.
Risk description
The risk is that exposed session tokens can help an attacker hijack an existing user session. Placing sensible information within URLs increases the chances of it being leaked, as URLs might be logged in unexpected locations, or may be disclosed via the Referer header.
Recommendation
Session tokens should only be transmitted in HTTP cookies, POST submitted hidden form fields, or specialized auth headers.
Classification
| CWE | CWE-200 |
| OWASP Top 10 - 2017 | |
| OWASP Top 10 - 2021 |
Evidence
| Software / Version | Category |
|---|---|
| Canny | Issue trackers |
| HTTP/3 | Miscellaneous |
| PayPal | Payment processors |
| Sentry | Issue trackers |
| DigiCert | SSL/TLS certificate authorities |
| Envoy | Reverse proxies |
| Lodash | JavaScript libraries |
| HSTS | Security |
Vulnerability description
We noticed that server software and technology details are exposed, potentially aiding attackers in tailoring specific exploits against identified systems and versions.
Risk description
The risk is that an attacker could use this information to mount specific attacks against the identified software type and version.
Recommendation
We recommend you to eliminate the information which permits the identification of software platform, technology, server and operating system: HTTP server headers, HTML meta information, etc.
Classification
| OWASP Top 10 - 2017 | A6 - Security Misconfiguration |
| OWASP Top 10 - 2021 | A5 - Security Misconfiguration |
Evidence
Vulnerability description
We found the robots.txt on the target server. This file instructs web crawlers what URLs and endpoints of the web application they can visit and crawl. Website administrators often misuse this file while attempting to hide some web pages from the users.
Risk description
There is no particular security risk in having a robots.txt file. However, it's important to note that adding endpoints in it should not be considered a security measure, as this file can be directly accessed and read by anyone.
Recommendation
We recommend you to manually review the entries from robots.txt and remove the ones which lead to sensitive locations in the website (ex. administration panels, configuration files, etc).
Classification
| OWASP Top 10 - 2017 | A6 - Security Misconfiguration |
| OWASP Top 10 - 2021 | A5 - Security Misconfiguration |
Evidence
Vulnerability description
Website is accessible.
Evidence
| URL | Method | Summary |
|---|---|---|
| https://www.dropbox.com/scl/fo/sybxcihecaf6i5g5xowpg/aodxpw22dkkmt-czeg31_ry?rlkey=lbcw6ezg1xhpr6xr5scjvlq31 | OPTIONS | We did a HTTP OPTIONS request. The server responded with a 405 status code and the header: `Allow: GET, HEAD, POST` Request / Response |
Vulnerability description
We have noticed that the webserver responded with an Allow HTTP header when an OPTIONS HTTP request was sent. This method responds to requests by providing information about the methods available for the target resource.
Risk description
The only risk this might present nowadays is revealing debug HTTP methods that can be used on the server. This can present a danger if any of those methods can lead to sensitive information, like authentication information, secret keys.
Recommendation
We recommend that you check for unused HTTP methods or even better, disable the OPTIONS method. This can be done using your webserver configuration.
Classification
| CWE | CWE-16 |
| OWASP Top 10 - 2017 | A6 - Security Misconfiguration |
| OWASP Top 10 - 2021 | A5 - Security Misconfiguration |
Infrastructure Vulnerabilities
Evidence
| Domain Queried | DNS Record Type | Description | Value |
|---|---|---|---|
| www.dropbox.com | A | IPv4 address | 162.125.69.18 |
| www.dropbox.com | AAAA | IPv6 address | 2620:100:6025:18::a27d:4512 |
| www.dropbox.com | CNAME | Canonical name | www-env.dropbox-dns.com |
Risk description
An initial step for an attacker aiming to learn about an organization involves conducting searches on its domain names to uncover DNS records associated with the organization. This strategy aims to amass comprehensive insights into the target domain, enabling the attacker to outline the organization's external digital landscape. This gathered intelligence may subsequently serve as a foundation for launching attacks, including those based on social engineering techniques. DNS records pointing to services or servers that are no longer in use can provide an attacker with an easy entry point into the network.
Recommendation
We recommend reviewing all DNS records associated with the domain and identifying and removing unused or obsolete records.