Vulnerability Scan Result
Title: | Letterboxd • Social film discovery. |
Description: | Letterboxd is a social platform for sharing your taste in film. Use it as a diary to record your opinion about films as you watch them, or just to keep track of films you’ve seen in the past. Rate, review and tag films as you add them. Find and follow your friends to see what they’re enjoying. Keep a watchlist of films you’d like to see, and create lists/collections on any topic. |
IP address | 172.67.36.95 |
Country | - |
AS number | AS13335 |
Net name | Cloudflare Inc |
IP address | 104.22.63.94 |
Country | - |
AS number | AS13335 |
Net name | Cloudflare Inc |
IP address | 104.22.62.94 |
Country | - |
AS number | AS13335 |
Net name | Cloudflare Inc |
80/tcp | http | Cloudflare http proxy |
443/tcp | https | cloudflare |
8080/tcp | http | Cloudflare http proxy |
8443/tcp | https-alt | cloudflare |
Software / Version | Category |
---|---|
Funding Choices | Cookie compliance |
Google Publisher Tag | Advertising |
Google Analytics GA4 | Analytics |
Gravatar | Miscellaneous |
jQuery 1.6.1 | JavaScript libraries |
Nette Framework | Web frameworks |
PHP | Programming languages |
Prebid | Advertising |
Webpack | Miscellaneous |
Module Federation | Miscellaneous |
Cloudflare | CDN |
reCAPTCHA | Security |
Google Tag Manager | Tag managers |
HSTS | Security |
Web Application Vulnerabilities
Evidence
Risk Level | CVSS | CVE | Summary | Affected software |
---|---|---|---|---|
4.3 | CVE-2011-4969 | Cross-site scripting (XSS) vulnerability in jQuery before 1.6.3, when using location.hash to select elements, allows remote attackers to inject arbitrary web script or HTML via a crafted tag. | jquery 1.6.1 | |
4.3 | CVE-2012-6708 | jQuery before 1.9.0 is vulnerable to Cross-site Scripting (XSS) attacks. The jQuery(strInput) function does not differentiate selectors from HTML in a reliable fashion. In vulnerable versions, jQuery determined whether the input was HTML by looking for the '<' character anywhere in the string, giving attackers more flexibility when attempting to construct a malicious payload. In fixed versions, jQuery only deems the input to be HTML if it explicitly starts with the '<' character, limiting exploitability only to attackers who can control the beginning of a string, which is far less common. | jquery 1.6.1 | |
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 1.6.1 | |
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 1.6.1 | |
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 1.6.1 |
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.
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 | A9 - Using Components with Known Vulnerabilities |
OWASP Top 10 - 2021 | A6 - Vulnerable and Outdated Components |
Evidence
URL | Evidence |
---|---|
https://letterboxd.com/ | Response does not include the HTTP Content-Security-Policy security header or meta tag |
Vulnerability description
We noticed that the target application lacks the Content-Security-Policy (CSP) header in its HTTP responses. The CSP header is a security measure that instructs web browsers to enforce specific security rules, effectively preventing the exploitation of Cross-Site Scripting (XSS) vulnerabilities.
Risk description
The risk is that if the target application is vulnerable to XSS, lack of this header makes it easily exploitable by attackers.
Recommendation
Configure the Content-Security-Header to be sent with each HTTP response in order to apply the specific policies needed by the application.
Classification
CWE | CWE-693 |
OWASP Top 10 - 2017 | A6 - Security Misconfiguration |
OWASP Top 10 - 2021 | A5 - Security Misconfiguration |
Evidence
Software / Version | Category |
---|---|
Funding Choices | Cookie compliance |
Google Publisher Tag | Advertising |
Google Analytics GA4 | Analytics |
Gravatar | Miscellaneous |
jQuery 1.6.1 | JavaScript libraries |
Nette Framework | Web frameworks |
PHP | Programming languages |
Prebid | Advertising |
Webpack | Miscellaneous |
Module Federation | Miscellaneous |
Cloudflare | CDN |
reCAPTCHA | Security |
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.
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 |
Vulnerability description
Website is accessible.
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.
Classification
OWASP Top 10 - 2017 | A6 - Security Misconfiguration |
OWASP Top 10 - 2021 | A5 - Security Misconfiguration |
Evidence
URL | Method | Summary |
---|---|---|
https://letterboxd.com/ | OPTIONS | We did a HTTP OPTIONS request. The server responded with a 405 status code and the header: `Allow: GET, HEAD, POST, TRACE, OPTIONS` 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 |
---|---|---|---|
_dmarc.letterboxd.com | TXT | Text record | "v=DMARC1; p=reject; pct=100; fo=1; rua=mailto:re+xsn92t3toam@dmarc.postmarkapp.com" |
Vulnerability description
We found that the DMARC record for the domain is not configured with sp policy, meaning that no policy is enforced for subdomains. When a DMARC record does not include a subdomain policy (sp directive), subdomains are not explicitly covered by the main domain's DMARC policy. This means that emails sent from subdomains (e.g., sub.example.com) may not be subject to the same DMARC enforcement as the main domain (example.com). As a result, attackers could potentially spoof emails from subdomains without being blocked or flagged, even if the main domain has a strict DMARC policy.
Recommendation
To mitigate the risk, we recommend configuring the DMARC record with a subdomain policy by adding the sp=reject or sp=quarantine directive. This will extend DMARC enforcement to all subdomains, preventing spoofing attempts and maintaining consistent security across both the main domain and its subdomains.
Evidence
Domain Queried | DNS Record Type | Description | Value |
---|---|---|---|
_dmarc.letterboxd.com | TXT | Text record | "v=DMARC1; p=reject; pct=100; fo=1; rua=mailto:re+xsn92t3toam@dmarc.postmarkapp.com" |
Vulnerability description
We found that the DMARC record for the domain is not configured with ruf tag. A missing ruf (forensic reporting) tag in a DMARC record indicates that the domain owner has not enabled the collection of detailed failure reports. Forensic reports provide valuable insights into specific instances where emails fail DMARC authentication. Without the ruf tag, the domain administrator loses the ability to receive and analyze these reports, making it difficult to investigate individual email failures or identify targeted phishing or spoofing attacks that may be exploiting weaknesses in the email authentication setup.
Recommendation
We recommend configuring the ruf tag in the DMARC record. This tag specifies where forensic reports should be sent, providing the domain owner with detailed data on DMARC validation failures. Forensic reports allow administrators to analyze why certain emails failed authentication, making it easier to fine-tune DMARC policies or address potential vulnerabilities. Ensure that the ruf email address belongs to a secure and trusted location capable of handling sensitive email data.
Evidence
Domain Queried | DNS Record Type | Description | Value |
---|---|---|---|
letterboxd.com | A | IPv4 address | 172.67.36.95 |
letterboxd.com | A | IPv4 address | 104.22.62.94 |
letterboxd.com | A | IPv4 address | 104.22.63.94 |
letterboxd.com | NS | Name server | isla.ns.cloudflare.com |
letterboxd.com | NS | Name server | major.ns.cloudflare.com |
letterboxd.com | MX | Mail server | 1 aspmx.l.google.com |
letterboxd.com | MX | Mail server | 10 alt3.aspmx.l.google.com |
letterboxd.com | MX | Mail server | 10 alt4.aspmx.l.google.com |
letterboxd.com | MX | Mail server | 5 alt1.aspmx.l.google.com |
letterboxd.com | MX | Mail server | 5 alt2.aspmx.l.google.com |
letterboxd.com | SOA | Start of Authority | isla.ns.cloudflare.com. dns.cloudflare.com. 2361858822 10000 2400 604800 1800 |
letterboxd.com | AAAA | IPv6 address | 2606:4700:10::ac43:245f |
letterboxd.com | AAAA | IPv6 address | 2606:4700:10::6816:3e5e |
letterboxd.com | AAAA | IPv6 address | 2606:4700:10::6816:3f5e |
letterboxd.com | TXT | Text record | "facebook-domain-verification=rlqrz8ctxk6c5gwg7ofzinsurscjqs" |
letterboxd.com | TXT | Text record | "google-site-verification=2wdFpOSsCNleUqOWpW8bx0gx1_tlr9vxpuARUguKw9s" |
letterboxd.com | TXT | Text record | "google-site-verification=Y-zkjggIRxeVV3sXhXaN7qrdh1PxJkPoJdTuF9MMhrs" |
letterboxd.com | TXT | Text record | "google-site-verification=vr_zjYN3BM6NQE1--g4om5pWdhk8ituDccKJWS274mE" |
letterboxd.com | TXT | Text record | "twilio-domain-verification=e1786b2574779e0531aba8d7470ad271" |
letterboxd.com | TXT | Text record | "yahoo-verification-key=nnwi73eFY9zUGW5MOFMyFuvhxFmPnySFLZyJf4QmNx4=" |
letterboxd.com | SPF | Sender Policy Framework | "v=spf1 include:_spf.google.com ip4:107.182.235.238 ip4:107.182.233.166 ip4:107.182.233.169 ip4:103.14.71.185 ip4:120.138.27.32 ip6:2403:7000:8000:600::b5 include:mail.zendesk.com -all" |
_dmarc.letterboxd.com | TXT | Text record | "v=DMARC1; p=reject; pct=100; fo=1; rua=mailto:re+xsn92t3toam@dmarc.postmarkapp.com" |
Recommendation
We recommend reviewing all DNS records associated with the domain and identifying and removing unused or obsolete records.
Vulnerability description
OS detection couldn't determine the operating system.
Recommendation
Vulnerability checks are skipped for ports that redirect to another port. We recommend scanning the redirected port directly.
Evidence
Domain Queried | DNS Record Type | Description | Value |
---|---|---|---|
letterboxd.com | SPF | Sender Policy Framework | "v=spf1 include:_spf.google.com ip4:107.182.235.238 ip4:107.182.233.166 ip4:107.182.233.169 ip4:103.14.71.185 ip4:120.138.27.32 ip6:2403:7000:8000:600::b5 include:mail.zendesk.com -all" |
Evidence
DKIM selector | Key type | Key size | Value |
---|---|---|---|
rsa | 1422 | "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAjaX1yO6tcAzQEttOMKzeYjVYPHgCacYFf/6/zFN8YKQffb1qsaKpnsGJfWgm3mKthVHzH+Bcr7FWWECWxaCc3Lmf4MFbrJW/7cJE0AfgP2s6BX/wg4Ec23qgpiZ/iCNFLuXwJRSVsrShrfqD9p+ZcVjizQR//phmKSEJUhX9bVeRM3WhEKBEBi0hr7j7Wy8lu" "iUPtkpjUAUDx5H+ZJQsm8kIllKcMdYHQjwK+7wzxueMNwBYFhHJD/HyJcA4cFURqUBeMoYC1bnmLONmxIgJv+6zH+r4yYpdYwJVoa2R+F7wIhovQ+uDCvIhghl1fbMFPCiP2H/tDAOnKc5OsvTLeQIDAQAB" | |
mandrill | rsa | 1296 | "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J/mRwSRMAocV/hMB3jXwaHH36d9NaVynQFYV8NaWi69c1veUtRzGt7yAioXqLj7Z4TeEUoOLgrKsn8YnckGs9i3B3tVFB+Ch/4mPhXWiNfNdynHWBcPcbJ8kjEQ2U8y78dHZj1YeRXXVvWob2OaKynO8/lQIDAQAB;" |
Evidence
Software / Version | Category |
---|---|
Cloudflare | CDN |
Vulnerability description
We noticed that server software and technology details are exposed, potentially aiding attackers in tailoring specific exploits against identified systems and versions.
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.