Free Preparation Discussions
MENU
CompTIA PT0-003 Exam - Topic 3 Question 23 Discussion
Topic #: 3
[Information Gathering and Vulnerability Scanning]
A penetration tester performs a service enumeration process and receives the following result after scanning a server using the Nmap tool:
PORT STATE SERVICE
22/tcp open ssh
25/tcp filtered smtp
111/tcp open rpcbind
2049/tcp open nfs
Based on the output, which of the following services provides the best target for launching an attack?
Based on the Nmap scan results, the services identified on the target server are as follows:
22/tcp open ssh:
Service: SSH (Secure Shell)
Function: Provides encrypted remote access.
Attack Surface: Brute force attacks or exploiting vulnerabilities in outdated SSH implementations. However, it is generally considered secure if properly configured.
25/tcp filtered smtp:
Service: SMTP (Simple Mail Transfer Protocol)
Function: Email transmission.
Attack Surface: Potential for email-related attacks such as spoofing, but the port is filtered, indicating that access may be restricted or protected by a firewall.
111/tcp open rpcbind:
Service: RPCBind (Remote Procedure Call Bind)
Function: Helps in mapping RPC program numbers to network addresses.
Attack Surface: Can be exploited in specific configurations, but generally not a primary target compared to others.
2049/tcp open nfs:
Service: NFS (Network File System)
Function: Allows for file sharing over a network.
Attack Surface: NFS can be a significant target for attacks due to potential misconfigurations that can allow unauthorized access to file shares or exploitation of vulnerabilities in NFS services.
Conclusion: The NFS service (2049/tcp) provides the best target for launching an attack. File sharing services like NFS often contain sensitive data and can be vulnerable to misconfigurations that allow unauthorized access or privilege escalation.
Jacob
2 months agoHassie
2 months agoBrynn
2 months agoAvery
3 months agoKeva
3 months agoMurray
3 months agoKathryn
3 months agoKrissy
4 months agoGlynda
4 months agoNenita
4 months agoFelicitas
4 months agoTesha
4 months agoSamira
5 months agoNohemi
5 months agoFlo
8 months agoEllsworth
8 months agoHubert
8 months agoAngella
9 months agoKris
9 months agoStephanie
8 months agoAlida
9 months agoRosamond
9 months agoMica
9 months agoAsuncion
8 months agoSarah
8 months agoLouvenia
8 months agoCristal
9 months agoFranchesca
10 months agoTalia
10 months agoCristal
9 months agoArt
9 months agoVincent
9 months ago