What Risk Does Opening Firewall Ports for a SaaS System Introduce?
A technician is opening ports on a firewall for a new system being deployed and supported by a SaaS provider. Which of the following is a risk in the new system?
Community Votes
38% of anonymous learners picked answer C. Votes are pick records left by other test-takers — they are not the verified answer.
Community Insight
Tests recognition that relying on external SaaS providers shifts security control to a third party, creating a supply chain risk rather than just a local configuration issue.
This question evaluates understanding of third-party and supply chain risks when integrating external SaaS solutions into an internal network. Community consensus strongly favors supply chain vendor risk due to the inherent dependency on the SaaS provider's security posture.
Candidates frequently select 'Vulnerable software' because opening ports seems to expose application flaws, but this overlooks the broader architectural dependency on the SaaS vendor's infrastructure and practices highlighted in SY0-701 objectives.
Community Discussion (43 comments)
Etc_Shadow28000
👍 22
Selected: B
B. Non-segmented network Opening ports on a firewall for a new system introduces the risk that the new system might be deployed on a non-segmented network. This means that the new system and its traffic could potentially be exposed to other parts of the network, increasing the risk of lateral movement by an attacker if the system is compromised. Network segmentation helps in containing potential breaches and limiting access to sensitive areas of the network. Therefore, the correct answer is: B. Non-segmented network
hasquaati
👍 13
Selected: C
I am thinking that opening firewall ports is a Layer 3 and Layer 4 issue and not a Layer 7 vulnerability, which is where the Vulnerable software would fit in. I would be more concerned about the Cloud provider which is why I am choosing C: Supply Chain Vendor.
JoeRealCool
👍 1
Selected: C
C and D are both correct, but C is more correct simply because it mentions the SaaS. SaaS is, in it's own way, part of the supply chain.
squishy_fishy
👍 1
Selected: C
Since the new system is provided and supported by a SaaS (Software-as-a-Service) provider, the primary risk is third-party security vulnerabilities associated with the supply chain vendor. Why is this a risk? The SaaS provider could have weak security controls, leading to data breaches or unauthorized access. If the SaaS provider is compromised, attackers could use their access to infiltrate your organization's systems. Opening firewall ports increases exposure to potential supply chain attacks, especially if the SaaS vendor has vulnerabilities in their infrastructure.
Strissel
👍 1
Selected: C
Straight from the CompTIA study guide the answer is supply chain vendor. A supply chain vendor can pose a risk to the new system if the vendor has poor security practices.
Oluwatobi4880
👍 2
Selected: D
The correct answer is D. Vulnerable software. Opening ports on a firewall can expose the system to potential vulnerabilities in the software being used, which may be exploited by attackers if the software is not kept updated or if it contains inherent security weaknesses.
Markie100
👍 1
Selected: C
The risk in the new system being deployed and supported by a SaaS (Software as a Service) provider is C. Supply chain vendor. Supply chain vendor (C): When relying on a SaaS provider, the security of the system is partially dependent on the vendor's practices. If the vendor has weak security controls, it could introduce risks such as data breaches, vulnerabilities, or compliance issues. This is a significant concern because the organization has limited control over the vendor's security measures. (A): While default credentials are a risk, they are typically associated with initial setup and configuration, not directly related to the SaaS provider or firewall port configuration. (B): Network segmentation is important for security, but it is not directly tied to the SaaS provider or the act of opening firewall ports. (D): Vulnerable software is a risk, but it is more relevant to the software running on the system rather than the SaaS provider or firewall configuration.
ITExperts
👍 1
Selected: B
B is the answer
beebax
👍 1
Selected: D
This directly points to flaws within the software itself, making it a specific and critical risk in the new system.
760b372
👍 1
Selected: D
Opening ports creates potential entry points into the system. If the system or software being deployed has vulnerabilities, attackers can exploit the open ports to compromise the system.
41c27e6
👍 2
Selected: C
C: Supply Chain Vendor.
Benny_On
👍 1
Selected: D
I think zero-day vulnerability on new system can be out-of-hands Cloud Provider, so i think D will be fit anwser
ProudFather
👍 2
Selected: C
C. Supply chain vendor The primary risk in this scenario is the supply chain vendor. Since the system is a SaaS offering, the security of the underlying infrastructure and applications relies heavily on the vendor's security practices. Here's a breakdown of why the other options aren't as relevant: the most significant risk in this scenario is the potential for vulnerabilities or security breaches within the SaaS provider's infrastructure or applications.
Fourgehan
👍 1
Selected: C
When deploying and supporting a system provided by a SaaS (Software as a Service) vendor, the supply chain vendor risk becomes a primary concern. The organization is relying on the SaaS provider for security, availability, and compliance. Risks include: The SaaS provider's systems being compromised. Lack of transparency in the vendor’s security measures. Potential vulnerabilities in the SaaS platform affecting the organization. These risks emphasize the importance of vendor assessments, contractual security requirements, and regular audits
Dimpo_Oz
👍 1
Selected: C
you are opening firewall for a third party, ie allowing a third party into your network bringing all their vulnerabilities along for the ride. Supply chain vendor by definition
fmeox567
👍 1
Selected: B
B. Non-segmented network GPT
cyberWoof
👍 1
Selected: C
Supply chain vendor
braveheart22
👍 2
Selected: C
I think C is the best choice because, since SaaS solutions are often integrated with core business functions and handle sensitive data, any vulnerabilities, breaches, or lapses in security at the vendor's end can directly impact the organization. This is a key concern in modern enterprise environments, where trust in third-party providers must be carefully managed through security assessments, vendor reviews, and contractual security requirements.
deejay2
👍 1
It's C for me. Supply Chain vendor deals with the management of service providers and tampering with underlying infrastructure, which is what the question is asking.
deejay2
👍 2
I'll say C. This deals with Third Party Risk Management. The third party is the Saas provider and that provider can access the network through those open ports adding their own malicious code.
c7b3ff0
👍 2
Selected: D
Since this specifies that it wants a risk in the new system, B&C are definitely not in the new system (B is an existing network, supply chain should already be analyzed). This leaves A&D. Since it's talking about opening ports in a firewall and potentially exposing this new system, it wants D, Vulnerable Software.
Ty13
👍 4
Selected: D
This is a really terrible question. It could possibly be A because the software on the new system, with ports now being opened to the internet, might have a default username/password that an attacker could exploit. But that would then mean that the software is vulnerable to those attacks to begin with.
2fd1029
👍 5
Selected: D
Given that the question specifically says "which is a risk in the new system" I would say that it can NOT be A or B because those are not risks with the provided system, they are risks with the corporate network in which the system is being deployed. It's a crapshoot between C & D depending on whoever wrote this vague question and decided what they wanted the answer to be. I would hazard to say D, because it most specifically relates to the system itself, and thus also the firewall ports that it will be whitelisted to communicate on.
Hayder81
👍 2
C. Supply chain vendor
_denw
👍 2
Selected: B
B. Non-segmented network
850bc48
👍 2
Chat GPT says: When ports are opened on a firewall, it could expose the system to external threats, especially if the network is not properly segmented. A non-segmented network allows attackers who gain access to one part of the network to potentially move laterally across the network to other systems, increasing the risk of a breach. A. Default credentials: This is a common risk but is not directly related to opening firewall ports. C. Supply chain vendor: While this is an important risk, it is more related to the relationship with the SaaS provider rather than the direct consequence of opening firewall ports. D. Vulnerable software: This is another risk, but it isn't as directly tied to the act of opening ports as network segmentation is. Therefore, Non-segmented network is the most relevant risk in this context.
17f9ef0
👍 1
Selected: B
It’s B
Dakshdabas
👍 2
Selected: C
C. Supply chain vendor When deploying a system supported by a SaaS provider, you are relying on an external party to manage and secure the system. This introduces supply chain risks, as the security of your system now partially depends on the security practices of the SaaS provider. If the SaaS provider is compromised, it could impact your system and data. A. Default credentials: While default credentials are a risk, they are generally more of a concern for the local system or devices rather than a SaaS provider. B. Non-segmented network: This is a valid network security risk, but it is not specific to the SaaS context. D. Vulnerable software: This is always a concern, but in the context of SaaS, the responsibility for managing software vulnerabilities often lies with the provider.
tamdod
👍 3
Every answer is a risk, opening ports allows for lateral movement, default credentials can be found online, supply chain is also a risk, do we know if their infrastructure is secure? Vulnerable software can be used to get into the system. These types of questions are awful.
a4e15bd
👍 1
The correct answer is D. While both Default credentials and Vulnerable Software are significant risk, but considering the specific context of opening ports on a firewall, Vulnerable Software sees to be the most critical because it directly relates to the potential exposure created by the newly opened ports.
Kingamj
👍 1
Selected: B
A non-segmented network poses a risk by potentially exposing a broader range of network resources if the new system is compromised. Proper network segmentation helps mitigate this risk by isolating different parts of the network.
dbrowndiver
👍 2
Selected: D
Vulnerable software is the correct answer because: • Direct Risk Connection: Opening firewall ports directly exposes the system's software to external threats. If the software has vulnerabilities, these can be exploited by attackers, especially when exposed to the internet or external networks. • Exploitation Potential: Known vulnerabilities in software can be easily targeted by attackers using automated tools to scan and exploit open ports. •Immediate Security Concern: The primary concern with opening ports is exposing internal systems to external attacks, making any vulnerabilities in the software a direct threat.
f26ddcd
👍 1
Selected: D
Vulnerable software
geocis
👍 1
C......A supply chain vendor is a third-party entity that provides goods or services to an organization, such as a SaaS provider. A supply chain vendor can pose a risk to the new system if the vendor has poor security practices, breaches, or compromises that could affect the confidentiality, integrity, or availability of the system or its data. The organization should perform due diligence and establish a service level agreement with the vendor to mitigate this risk. The other options are not specific to the scenario of using a SaaS provider, but rather general risks that could apply to any system.
Shaman73
👍 1
Selected: D
I think D
MAKOhunter33333333
👍 3
Selected: D
It asks about the risk inside the new system which makes me think what the new system is deploying,, software.
Th3irdEye
👍 5
Selected: D
I think the question is trying to figure out if you know what SaaS means and if you can figure out it's "Software" as a Service they expect you to pick "Vulnerable software". Even though Supply chain vendor kind of fits too I would pick D.
Abcd123321
👍 1
Selected: D
I think D
AutoroTink
👍 1
Selected: D
I narrowed it down to A and D. But with the open ports, D is the more likely answer because of the increased attackers can scan the open ports and use automated tools to exploit known vulnerabilities in software. With default credentials, the attacker may have to guess or know the specific credentials.
e5c1bb5
👍 1
Selected: D
ammending my answer i thinks its D based on key words
e5c1bb5
👍 3
Selected: C
the question specifically mentions that the system being deployed is supported by a SaaS (Software-as-a-Service) provider. The risk associated with the new system would likely involve the security practices and integrity of the supply chain vendor providing the SaaS solution. This includes concerns such as the vendor's data handling practices, security measures, and potential vulnerabilities in their software or infrastructure.
EOtero
👍 6
Selected: C
Supply chain vectors • Tamper with the underlying infrastructure – Or manufacturing process • Managed service providers (MSPs) – Access many different customer networks from one location • Gain access to a network using a vendor – 2013 Target credit card breach • Suppliers – Counterfeit networking equipment – Install backdoors, substandard performance and availability – 2020 - Fake Cisco Catalyst switches
Yoez
👍 1
Selected: D
D. Vulnerable software Deploying a new system supported by a SaaS (Software as a Service) provider can introduce risks related to vulnerable software. If the software being deployed has known vulnerabilities or weaknesses, it can expose the system to security threats such as exploitation by attackers. Therefore, ensuring that the software is up-to-date with security patches and configurations is crucial to mitigate this risk.
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Expert Analysis
Core Concept: Third-Party and Supply Chain Risk
The scenario describes a classic third-party dependency situation. In the SY0-701 exam framework, any integration of externally managed services (like SaaS) inherently introduces supply chain risk. By opening firewall ports, the organization is extending trust to the SaaS provider, meaning the security, availability, and compliance of that system now partially depend on the vendor’s internal controls.
Why Option C is Correct
Supply chain vendor risk directly addresses the implications of outsourcing functionality to a SaaS provider. As noted by multiple candidates, the SaaS provider manages the underlying infrastructure, patching schedules, and access controls. If the vendor experiences a breach, implements weak security practices, or faces operational disruptions, your organization inherits those consequences regardless of your local firewall rules. CompTIA consistently maps external service dependencies to supply chain management objectives.
Why the Other Options Are Incorrect
- Default credentials (A) are a local misconfiguration risk. While possible, they are not the primary risk introduced by the SaaS deployment model itself.
- Non-segmented network (B) is a valid architectural concern, but the question specifically emphasizes the SaaS provider context. Without explicit mention of flat network design, segmentation is a secondary consideration compared to the direct vendor dependency.
- Vulnerable software (D) is a tactical risk. While open ports can expose application flaws, CompTIA expects test-takers to prioritize the overarching shared responsibility and third-party risk model when a cloud/SaaS context is explicitly stated. Technical vulnerabilities are a subset of the broader supply chain/vendor risk.
Community Insights & Exam Context
The vote distribution shows a split between C, D, and B, reflecting real-world debate. However, candidates who chose C correctly identified the exam’s preference for high-level risk classification over granular technical symptoms. Commenters like Etc_Shadow28000 and hasquaati highlighted that Layer 3/4 port openings do not equate to Layer 7 software flaws, reinforcing why vendor dependency takes precedence in this scenario.
Official Reference
Exam Strategy
When a SY0-701 question explicitly mentions cloud delivery models (SaaS, PaaS, IaaS) or external vendors, immediately map the scenario to third-party risk, shared responsibility, or supply chain management before analyzing technical controls like firewalls or ACLs. CompTIA tests your ability to recognize organizational and architectural risks over isolated technical misconfigurations.
Related Analysis
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