Vulnerability Scan Result
| Title: | ScreenConnect Remote Support Software |
| Description: | No description found |
| ip_address | 66.118.237.144 |
| country | US  |
| network_name | Krixe Pte. Ltd. |
| asn | AS213122 |
135/tcp | msrpc | Microsoft Windows RPC - |
139/tcp | netbios-ssn | Microsoft Windows netbios-ssn - |
443/tcp | https | Microsoft HTTPAPI httpd 2 |
445/tcp | microsoft-ds | - - |
3389/tcp | ms-wbt-server | Microsoft Terminal Services - |
5357/tcp | http | Microsoft HTTPAPI httpd 2 |
| Software / Version | Category |
|---|---|
| Microsoft HTTPAPI 2.0 | Web servers |
Web Application Vulnerabilities
Evidence
| URL | Evidence |
|---|---|
| https://trysafe.surf/ | 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
| Software / Version | Category |
|---|---|
| Microsoft HTTPAPI 2.0 | Web servers |
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
| CWE | CWE-200 |
| OWASP Top 10 - 2017 | |
| OWASP Top 10 - 2021 |
Evidence
| URL | Evidence |
|---|---|
| https://trysafe.surf/ | 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-1021 |
| OWASP Top 10 - 2017 | |
| OWASP Top 10 - 2021 |
Evidence
| URL | Evidence |
|---|---|
| https://trysafe.surf/ | Response headers do not include the HTTP Strict-Transport-Security header |
Vulnerability description
We noticed that the target application lacks the HTTP Strict-Transport-Security header in its responses. This security header is crucial as it instructs browsers to only establish secure (HTTPS) connections with the web server and reject any HTTP connections.
Risk description
The risk is that lack of this header permits an attacker to force a victim user to initiate a clear-text HTTP connection to the server, thus opening the possibility to eavesdrop on the network traffic and extract sensitive information (e.g. session cookies).
Recommendation
The Strict-Transport-Security HTTP header should be sent with each HTTPS response. The syntax is as follows: `Strict-Transport-Security: max-age=<seconds>[; includeSubDomains]` The parameter `max-age` gives the time frame for requirement of HTTPS in seconds and should be chosen quite high, e.g. several months. A value below 7776000 is considered as too low by this scanner check. The flag `includeSubDomains` defines that the policy applies also for sub domains of the sender of the response.
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.
Classification
| CWE | CWE-1188 |
| OWASP Top 10 - 2017 | |
| OWASP Top 10 - 2021 |
Infrastructure Vulnerabilities
Evidence
We managed to detect a publicly accessible Remote Desktop Protocol (RDP) service. PORT STATE SERVICE VERSION 3389/tcp open ms-wbt-server Microsoft Terminal Services
Vulnerability description
We found that the Remote Desktop Protocol (RDP) service is publicly accessible. Attackers often look for the Remote Desktop Protocol service due to its capability to provide remote access and control of a server, usually one that operates on the Microsoft Windows operating system.
Risk description
Exposing this service online can enable attackers to launch authentication attacks, like guessing login credentials, potentially gaining unauthorized access. Attackers might use publicly available employee information for brute-force attacks. Vulnerabilities, such as unpatched software or protocol flaws, could also be exploited. An example is CVE-2019-0708 (Bluekeep) vulnerability. Additionally, integration with Active Directory Domain Services could allow attackers to move laterally across the network, accessing more systems and sensitive data.
Recommendation
We recommend turning off Remote Desktop Protocol access over the Internet and instead using a Virtual Private Network (VPN) that mandates two-factor authentication (2FA). Avoid permitting direct user authentication to Active Directory over the Internet to prevent attackers from engaging in password guessing or causing the lockout of legitimate domain user accounts. If the Remote Desktop Protocol service is essential for business purposes, limiting access to designated IP addresses is recommended.
Evidence
We managed to detect a publicly accessible Windows Server Message Blocks (SMB) service. PORT STATE SERVICE VERSION 139/tcp open netbios-ssn Microsoft Windows netbios-ssn
Vulnerability description
We found that the Windows Server Message Blocks (SMB) service is publicly accessible. The Server Message Block (SMB) protocol facilitates services like file and print sharing on systems. Older SMB protocol versions operate through NetBIOS to enable application-layer networking for devices within Windows operating systems, including communication with printers and serial ports.
Risk description
Exposing this service online can enable attackers to launch authentication attacks, like guessing login credentials, potentially gaining unauthorized access. Attackers might use publicly available employee information for brute-force attacks. Vulnerabilities, such as unpatched software or protocol flaws, could also be exploited. An example is MS17-010 (EternalBlue) vulnerability. Additionally, integration with Active Directory Domain Services could allow attackers to move laterally across the network, accessing more systems and sensitive data.
Recommendation
We recommend turning off SMB access over the Internet and instead using a Virtual Private Network (VPN) that mandates two-factor authentication (2FA). Avoid permitting direct user authentication to Active Directory over the Internet to prevent attackers from engaging in password guessing or causing the lockout of legitimate domain user accounts. If the SMB service is essential for business purposes, we recommend limiting access only from designated IP addresses using a firewall.
Evidence
We managed to detect a publicly accessible Remote Procedure Call (RPC) service. PORT STATE SERVICE VERSION 135/tcp open msrpc Microsoft Windows RPC
Vulnerability description
We found that the Windows Remote Procedure Call (RPC) service is publicly accessible. RPC is a protocol that one program can use to request a service from a program located on another computer in a network.
Risk description
Exposing this service online can enable attackers to launch attacks, including unauthorized access, remote code execution, information disclosure, denial of service (DoS), and potential lateral movement within the network.
Recommendation
We recommend turning off RPC access over the Internet and instead using a Virtual Private Network (VPN) that mandates two-factor authentication (2FA). If the RPC service is essential for business purposes, we recommend limiting access only from designated IP addresses using a firewall.
Evidence
We found insecure DNS cookie usage on the following nameservers: hal.ns.cloudflare.com, sharon.ns.cloudflare.com
Vulnerability description
We found that the server does not implement DNS Cookies or uses them insecurely. DNS Cookies help prevent DNS-based attacks, such as spoofing and amplification attacks.
Risk description
The risk exists because without DNS Cookies, the server is vulnerable to DNS spoofing and amplification attacks. Attackers can manipulate responses or use the server in distributed denial-of-service (DDoS) attacks, compromising network availability and security.
Recommendation
We recommend enabling DNS Cookies to prevent spoofed DNS responses. Ensure proper cookie validation is implemented to mitigate DNS amplification attacks. Regularly update DNS servers to support the latest DNS security features.
Evidence
| Software / Version | Category |
|---|---|
| Microsoft HTTPAPI 2.0 | Web servers |
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
| Domain Queried | DNS Record Type | Description | Value |
|---|---|---|---|
| trysafe.surf | A | IPv4 address | 66.118.237.144 |
| trysafe.surf | NS | Name server | hal.ns.cloudflare.com |
| trysafe.surf | NS | Name server | sharon.ns.cloudflare.com |
| trysafe.surf | SOA | Start of Authority | hal.ns.cloudflare.com. dns.cloudflare.com. 2404807500 10000 2400 604800 1800 |
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 |
|---|---|
| Microsoft HTTPAPI 2.0 | Web servers |
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 |
|---|---|
| Microsoft Windows Server 2012 R2 | 91% |
Vulnerability description
OS Detection