Cloud-Based Phishing Attacks: How Cybercriminals Exploit SaaS and IaaS Weaknesses

By: Gonipalli Bharath Vel Tech University, Chennai, India International Center for AI and Cyber Security Research and Innovations, Asia University, Taiwan, Gmail: gonipallibharath@gmail.com

Abstract:

Business operations moving to cloud platforms have prompted cybercriminals to target the weaknesses present in Software as a Service (SaaS) and Infrastructure as a Service (IaaS) platform. Various cyber technicians utilize phishing software along with API flawed setups together with insufficient authentication methods and social engineering methods to infiltrate cloud protection systems. Phishing schemes which target cloud platform users start with false emails that pretend to be authentic service providers who steal valid access information from their victims. Attackers can manipulate cloud resources because of the exposed APIs and misconfigured access controls that exist in IaaS systems. This paper investigates the ways criminal hackers take advantage of SaaS and IaaS system vulnerabilities while showing which attack strategies they deploy and presenting guidance on protecting against these threats.

Introduction:

Organizations have completely changed their data management methods and application delivery structure and IT infrastructure deployment through cloud computing technologies. The adoption of modern technology brought about cloud-based phishing attacks which represent new security challenges for organizations. Cyber thieves take advantage of cloud system accessibility through attacks launched against users and system weaknesses[1]. Thieves trying to access SaaS environments steal user credentials through the combination of fake login masquerades and deceptive email communications. Unsecured IaaS platforms suffer from both configuration errors and weak API security that provides intruders with entry points to cloud resource systems[2]. It stands essential for organizations to grasp these current cyberattack styles so they can develop advanced security measures to block data stealing incidents.

How Cybercriminals Exploit SaaS and IaaS Weaknesses:

Phishing emails create primary attack paths that cybercriminals use to exploit cloud platforms as they target users of SaaS offerings. Attackers create deceptive emails using the identities of major cloud service providers such as Google Workspace along with Microsoft 365 and Dropbox. The emails direct users to fake login pages through dangerous links which accomplish the goal of obtaining users’ credentials. Attackers who succeed in gaining entry to such systems maintain the ability to retrieve valuable corporate data as well as launch additional phishing exploits inside the organization[3].

Cloud infrastructure unauthorized access occurs when cybercriminals take advantage of APIs with poor security in IaaS deployments. Cloud providers including AWS and Azure together with Google Cloud make available APIs for automation that enable third-party application integration. Cloud resources remain vulnerable to attackers because of incorrectly set up APIs coupled with insufficient authentication security measures[4]. The unauthorized placement of rogue virtual machines and data extraction and service tampering becomes possible through exploiting these vulnerabilities by cybercriminals[5].

Cloud security suffers major damage due to incorrect configurations of storage and access control systems. Organizations that do not establish tight permission controls for their cloud storage buckets and databases make sensitive information accessible to the public. Cyberattacks seeking exposed cloud storage lead to data theft of confidential information delivering exploitable content for financial manipulation or blackmail or competitive advantage purposes[6]. Attackers can obtain unauthorized control over vital cloud infrastructure through inadequate identity and access management (IAM) configurations that occur in IaaS platforms[7].

Certified criminals exploit OAuth token hijacking as a complex method that lets them overcome authentication systems. OAuth serves as the core authentication protocol for single sign-on (SSO) in cloud applications which enables users to avoid password re-entering during cloud authentication[8]. Fraudsters deceive users to approve suspect applications which steal OAuth authentication tokens because of the exploit[9]. A compromised token enables unobstructed entry into cloud accounts because it overrides MFA requirements and eliminates the necessity of passwords. Transference of unauthorized long-term access to sensitive cloud resources makes this method particularly dangerous for cloud security.

Cloud users face substantial dangers from attacks known as Man-in-the-Middle (MitM) assaults. Cybercriminals break into user-cloud platform communication through the use of unauthorized SSL certificates or hacked networks[10]. Through their position in-between cloud users and their systems hackers can steal credentials and modify traffic transfers while also taking control of cloud session functions[11]. Organizations face serious data breaches because MitM attacks modify authorized business-critical files in corporate environments.

Preventive Measures:

Organizations need to establish strong defensive security measures which protect against cloud-based phishing attacks. Multi-Factor Authentication (MFA) stands as one of the best methods to stop unauthorized users because it adds security above conventional passwords. Organizations must conduct routine security audits which help them discover incorrect cloud service configurations to verify proper implementation of access controls with API permissions. Training users effectively combats phishing attacks because it teaches employees to spot unusual mail communication and escape social engineering tactics.

Organizations that want to protect their IaaS environments should implement API security principles by using robust authentication protocols haven’t just users need limited access rights while changing their API access keys at regular intervals. Cloud communication security through encryption defends against MitM attacks because it provided secure data transmission. The implementation of advanced threat detection systems allows organizations to find and stop phishing attempts that could result in cloud system vulnerabilities.

Conclusion:

Phishing attacks persist in cloud environments since they exploit weaknesses found in SaaS and IaaS platforms. Cybercriminals execute complex strategies which involve sending fake emails and stealing OAuth tokens and abusing APIs to break into cloud accounts while acquiring access to confidential information. Various organizations need to keep cloud security ahead of attackers by deploying robust authentication protocols and protecting APIs and running phishing prevention programs for staff. Companies that take action against these security issues can protect their cloud structures together with lowering cyberattack potential.

References:

1. W. Ahmad, A. Rasool, A. R. Javed, T. Baker, and Z. Jalil, “Cyber Security in IoT-Based Cloud Computing: A Comprehensive Survey,” Electronics, vol. 11, no. 1, Art. no. 1, Jan. 2022, doi: 10.3390/electronics11010016.
2. D. Kalla, F. Samaah, S. Kuraku, and N. Smith, “Phishing Detection Implementation using Databricks and Artificial Intelligence,” Int. J. Comput. Appl., vol. 185, no. 11.
3. “Identifying Hacking Failures in the IaaS, PaaS, and SaaS Networks to Secure Cloud Applications | IEEE Conference Publication | IEEE Xplore.” Accessed: Feb. 28, 2025. [Online]. Available: https://ieeexplore.ieee.org/abstract/document/10716053
4. S. Patel, “CLOUD SECURITY BEST PRACTICES: PROTECTING YOUR DATA IN A MULTI- CLOUD ENVIRONMENT,” vol. 9, no. 11, 2024.
5. “A Comprehensive Review of Cyber Security Vulnerabilities, Threats, Attacks, and Solutions.” Accessed: Feb. 28, 2025. [Online]. Available: https://www.mdpi.com/2079-9292/12/6/1333
6. “Internet of Things Meet Internet of Threats: New Concern Cyber Security Issues of Critical Cyber Infrastructure.” Accessed: Feb. 28, 2025. [Online]. Available: https://www.mdpi.com/2076-3417/11/10/4580
7. D. Josic, M. Basic, and L. Zgrablic, “Security Principles in Cloud Computing,” in DAAAM Proceedings, 1st ed., vol. 1, B. Katalinic, Ed., DAAAM International Vienna, 2024, pp. 0210–0215. doi: 10.2507/35th.daaam.proceedings.028.
8. “A Comparative Analysis on Blockchain versus Centralized Authentication Architectures for IoT-Enabled Smart Devices in Smart Cities: A Comprehensive Review, Recent Advances, and Future Research Directions.” Accessed: Feb. 28, 2025. [Online]. Available: https://www.mdpi.com/1424-8220/22/14/5168
9. “An Empirical Analysis of Incorrect Account Remediation in the Case of Broken Authentication | IEEE Journals & Magazine | IEEE Xplore.” Accessed: Feb. 28, 2025. [Online]. Available: https://ieeexplore.ieee.org/abstract/document/10360844
10. “Unveiling Vulnerabilities of Web Attacks Considering Man in the Middle Attack and Session Hijacking | IEEE Journals & Magazine | IEEE Xplore.” Accessed: Feb. 28, 2025. [Online]. Available: https://ieeexplore.ieee.org/abstract/document/10381703
11. “Securing distributed systems: A survey on access control techniques for cloud, blockchain, IoT and SDN – ScienceDirect.” Accessed: Feb. 28, 2025. [Online]. Available: https://www.sciencedirect.com/science/article/pii/S2772918423000036
12. Lu, J., Shen, J., Vijayakumar, P., & Gupta, B. B. (2021). Blockchain-based secure data storage protocol for sensors in the industrial internet of things. IEEE Transactions on Industrial Informatics, 18(8), 5422-5431.
13. Singh, A., & Gupta, B. B. (2022). Distributed denial-of-service (DDoS) attacks and defense mechanisms in various web-enabled computing platforms: issues, challenges, and future research directions. International Journal on Semantic Web and Information Systems (IJSWIS), 18(1), 1-43.
14. Mirsadeghi, F., Rafsanjani, M. K., & Gupta, B. B. (2021). A trust infrastructure based authentication method for clustered vehicular ad hoc networks. Peer-to-Peer Networking and Applications, 14, 2537-2553.
15. KEE S.N. (2024) Blockchain for Decentralized IoT Security: Protection Against Phishing and Data Breaches, Insights2Techinfo, pp.1

Cite As

Bharath G. (2025) Cloud-Based Phishing Attacks: How Cybercriminals Exploit SaaS and IaaS Weaknesses, Insights2Techinfo, pp.1

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