CVE-2025-5777 Scanner
CVE-2025-5777 Scanner - Memory Disclosure vulnerability in Citrix NetScaler
Short Info
Level
Single Scan
Single Scan
Can be used by
Asset Owner
Estimated Time
10 seconds
Time Interval
13 days 12 hours
Scan only one
Domain, Subdomain, IPv4
Toolbox
-
Citrix NetScaler is a widely used application delivery and load balancing solution. It is deployed by organizations that require reliable and scalable delivery of applications and services. NetScaler is commonly utilized in environments ranging from small businesses to large enterprises, providing optimized web application performance. The product is instrumental in maximizing end-user productivity by ensuring efficient delivery of enterprise applications, server farms, and data centers. Organizations use Citrix NetScaler to enhance the efficiency, security, and resilience of their network infrastructure. With its advanced features, organizations can manage traffic, enforce security policies, and handle access to enterprise resources seamlessly.
The vulnerability detected is a memory disclosure issue that occurs due to insufficient input validation. This vulnerability, tagged as CVE-2025-5777, allows for overreading memory on the Citrix NetScaler Management Interface. Such a flaw can potentially expose sensitive data contained within the system memory to unauthorized parties. The vulnerability compromises the confidentiality of the data processed by the NetScaler, making it susceptible to snooping and information leaks. Attackers exploiting this vulnerability can access sensitive memory, leading to exposure of critical data and system information. The flaw necessitates immediate remediation to protect the integrity and confidentiality of the data processed by the NetScaler.
The vulnerability is particularly concerning due to its mechanism, which centers around insufficient validation checks in the data handling processes of NetScaler. An attacker can exploit this flaw by sending specific requests to the exposed endpoint, triggering a memory overread condition. The 'doAuthentication.do' endpoint is identified as the vulnerable target, which, when interacted with using crafted input, permits the attacker to access unintended memory segments. Attackers leverage this flaw by manipulating input parameters to bypass normal memory safeguards. The lack of active policy enforcement during certain authentication processes is a key factor in this vulnerability, highlighting gaps in the security architecture of NetScaler ADC and Gateway.
If exploited, the vulnerability can lead to serious consequences for organizations relying on Citrix NetScaler. Attackers may retrieve confidential information such as authentication tokens, session identifiers, or encryption keys from the exposed memory. Such disclosures could further facilitate lateral movement within the network or unauthorized access to other sensitive systems. The breach of memory confidentiality undermines the trustworthiness of NetScaler services, potentially resulting in data breaches or compliance concerns. Organizations might experience a loss of intellectual property, legal ramifications, and damage to their reputation. The severity of these outcomes necessitates urgent attention to mitigation measures.
REFERENCES
