Vulnerability Scan Result
| Title: | Instapaper |
| Description: | A simple tool for saving web pages to read later on your iPhone, iPad, Android, computer, or Kindle. |
| ip_address | 52.38.186.143 |
| country | US  |
| network_name | Amazon Inc |
| asn | AS16509 |
| ip_address | 52.35.33.100 |
| country | US |
| network_name | Amazon Inc |
| asn | AS16509 |
| ip_address | 44.235.115.137 |
| country | US |
| network_name | Amazon Inc |
| asn | AS16509 |
80/tcp | http | awselb/2.0 - |
443/tcp | https | awselb/2.0 - |
| Software / Version | Category |
|---|---|
| Amazon Web Services | PaaS |
| AWS Certificate Manager | SSL/TLS certificate authorities |
| Amazon S3 | CDN |
| D3 3.4.8 | JavaScript graphics |
| Adobe Fonts 1.21.0 | Font scripts |
| Google Analytics | Analytics |
| jQuery 1.11.0 | JavaScript libraries |
| Modernizr 2.8.0 | JavaScript libraries |
| Open Graph | Miscellaneous |
| TornadoServer 5.1.1 | Web servers |
| Typekit 1.21.0 | Font scripts |
| Google Tag Manager | Tag managers |
| HSTS | Security |
Web Application Vulnerabilities
Evidence
| Risk Level | CVSS | CVE | Summary | Affected software |
|---|---|---|---|---|
| 4.3 | CVE-2020-11023 | In jQuery versions greater than or equal to 1.0.3 and before 3.5.0, passing HTML containing <option> elements from untrusted sources - even after sanitizing it - to one of jQuery's DOM manipulation methods (i.e. .html(), .append(), and others) may execute untrusted code. This problem is patched in jQuery 3.5.0. | jquery 1.11.0 | |
| 4.3 | CVE-2020-11022 | In jQuery versions greater than or equal to 1.2 and before 3.5.0, passing HTML from untrusted sources - even after sanitizing it - to one of jQuery's DOM manipulation methods (i.e. .html(), .append(), and others) may execute untrusted code. This problem is patched in jQuery 3.5.0. | jquery 1.11.0 | |
| 4.3 | CVE-2019-11358 | jQuery before 3.4.0, as used in Drupal, Backdrop CMS, and other products, mishandles jQuery.extend(true, {}, ...) because of Object.prototype pollution. If an unsanitized source object contained an enumerable __proto__ property, it could extend the native Object.prototype. | jquery 1.11.0 | |
| 4.3 | CVE-2015-9251 | jQuery before 3.0.0 is vulnerable to Cross-site Scripting (XSS) attacks when a cross-domain Ajax request is performed without the dataType option, causing text/javascript responses to be executed. | jquery 1.11.0 |
Vulnerability description
We noticed known vulnerabilities in the target application based on the server responses. They are usually related to outdated systems and expose the affected applications to the risk of unauthorized access to confidential data and possibly denial of service attacks. Depending on the system distribution the affected software can be patched but displays the same version, requiring manual checking.
Risk description
The risk is that an attacker could search for an appropriate exploit (or create one himself) for any of these vulnerabilities and use it to attack the system. Since the vulnerabilities were discovered using only version-based testing, the risk level for this finding will not exceed 'high' severity. Critical risks will be assigned to vulnerabilities identified through accurate active testing methods.
Recommendation
In order to eliminate the risk of these vulnerabilities, we recommend you check the installed software version and upgrade to the latest version.
Classification
| CWE | CWE-1026 |
| OWASP Top 10 - 2017 | |
| OWASP Top 10 - 2021 |
Evidence
| URL | Evidence |
|---|---|
| https://www.instapaper.com/p/16618093 | Response headers do not include the Referrer-Policy HTTP security header as well as the |
Vulnerability description
We noticed that the target application's server responses lack the Referrer-Policy HTTP header, which controls how much referrer information the browser will send with each request originated from the current web application.
Risk description
The risk is that if a user visits a web page (e.g. "http://example.com/pricing/") and clicks on a link from that page going to e.g. "https://www.google.com", the browser will send to Google the full originating URL in the `Referer` header, assuming the Referrer-Policy header is not set. The originating URL could be considered sensitive information and it could be used for user tracking.
Recommendation
The Referrer-Policy header should be configured on the server side to avoid user tracking and inadvertent information leakage. The value `no-referrer` of this header instructs the browser to omit the Referer header entirely.
Classification
| CWE | CWE-693 |
| OWASP Top 10 - 2017 | |
| OWASP Top 10 - 2021 |
Evidence
| URL | Evidence |
|---|---|
| https://www.instapaper.com/p/16618093 | 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 | |
| OWASP Top 10 - 2021 |
Evidence
| Software / Version | Category |
|---|---|
| Amazon Web Services | PaaS |
| AWS Certificate Manager | SSL/TLS certificate authorities |
| Amazon S3 | CDN |
| D3 3.4.8 | JavaScript graphics |
| Adobe Fonts 1.21.0 | Font scripts |
| Google Analytics | Analytics |
| jQuery 1.11.0 | JavaScript libraries |
| Modernizr 2.8.0 | JavaScript libraries |
| Open Graph | Miscellaneous |
| TornadoServer 5.1.1 | Web servers |
| Typekit 1.21.0 | Font scripts |
| Google Tag Manager | Tag managers |
| 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.
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).
Evidence
| URL | Evidence |
|---|---|
| https://www.instapaper.com/p/16618093 | Response headers do not include the X-Content-Type-Options HTTP security header |
Vulnerability description
We noticed that the target application's server responses lack the X-Content-Type-Options header. This header is particularly important for preventing Internet Explorer from reinterpreting the content of a web page (MIME-sniffing) and thus overriding the value of the Content-Type header.
Risk description
The risk is that lack of this header could make possible attacks such as Cross-Site Scripting or phishing in Internet Explorer browsers.
Recommendation
We recommend setting the X-Content-Type-Options header such as `X-Content-Type-Options: nosniff`.
Classification
| CWE | CWE-693 |
| OWASP Top 10 - 2017 | |
| OWASP Top 10 - 2021 |
Vulnerability description
We have noticed that the server is missing the security.txt file, which is considered a good practice for web security. It provides a standardized way for security researchers and the public to report security vulnerabilities or concerns by outlining the preferred method of contact and reporting procedures.
Risk description
There is no particular risk in not having a security.txt file for your server. However, this file is important because it offers a designated channel for reporting vulnerabilities and security issues.
Recommendation
We recommend you to implement the security.txt file according to the standard, in order to allow researchers or users report any security issues they find, improving the defensive mechanisms of your server.
Evidence
Vulnerability description
Website is accessible.
Infrastructure Vulnerabilities
Evidence
| Domain Queried | DNS Record Type | Description | Value |
|---|---|---|---|
| www.instapaper.com | A | IPv4 address | 52.35.33.100 |
| www.instapaper.com | A | IPv4 address | 44.235.115.137 |
| www.instapaper.com | A | IPv4 address | 52.38.186.143 |
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.
Evidence
| Software / Version | Category |
|---|---|
| Amazon Web Services | PaaS |
| TornadoServer 5.1.1 | Web servers |
| reCAPTCHA | Security |
| Google Tag Manager | Tag managers |
| Google Analytics | Analytics |
| HSTS | Security |
| Amazon S3 | CDN |
| AWS Certificate Manager | SSL/TLS certificate authorities |
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.
Evidence
| Operating System | Accuracy |
|---|---|
| Linux 2.6.32 | 90% |
Vulnerability description
OS Detection