VMware vCenter contains an SMTP header injection vulnerability. This vulnerability allows a malicious actor with non-administrative privileges on vCenter, who has permission to create scheduled tasks, to manipulate the notification emails sent for scheduled tasks. Given the nature of this vulnerability, attackers may leverage it to execute unintended actions, affecting the integrity of the notifications.
With a CVSS score of 8.5, this vulnerability is classified as high severity. The risk to organizations includes potential unauthorized manipulation of task notifications, which can lead to miscommunication and operational disruption. Organizations should prioritize patching immediately to mitigate this risk.
As of now, there is no known exploit available for this vulnerability. However, its high exploitability score indicates that it is critical to address this issue promptly. Organizations using VMware vCenter are strongly advised to assess their environments and implement necessary security measures.
Given the potential impact, organizations should schedule remediation as part of their immediate security assessments. The focus should be on updating affected systems and ensuring that security controls are in place to detect any abuse of this vulnerability.
Vulnerability Details
The vulnerability allows for SMTP header injection, classified under CWE-77. The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L, indicating that it is network exploitable, requires low attack complexity, low privileges, and does not require user interaction.
Technical Analysis
The root cause of this vulnerability stems from insufficient input validation in the handling of SMTP headers. Attackers may exploit this vulnerability by crafting malicious input that is processed by the SMTP server, leading to the manipulation of email content without proper authorization.
The attack vector is classified as network, allowing remote exploitation. The attack complexity is low, meaning that an attacker can execute the attack without significant effort. The privileges required are low, indicating that a non-administrative user could execute the attack. User interaction is not required, as the attack can be automated.
The confidentiality impact is none, while the integrity impact is high due to the potential manipulation of notification content. The availability impact is low, suggesting that the primary concern is the integrity of the email notifications rather than availability of the service.
Risk & Impact Analysis
Real-world deployment risk is significant, as attackers who gain access to non-administrative accounts can exploit this vulnerability to manipulate scheduled task notifications. This could mislead operational teams and impact decision-making processes. Organizations need to understand that the blast radius of this vulnerability can extend beyond the individual user, potentially impacting multiple systems relying on scheduled tasks.
Urgency assessment based on the CVSS score indicates that this vulnerability should be treated with high urgency. Organizations should address this vulnerability in their priority patch cycle to prevent potential exploitation.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to vendor patch are affected by this vulnerability. Organizations should verify their vCenter deployments for any impacted versions.
Mitigation & Remediation
To remediate this vulnerability, organizations should apply the latest patches provided by VMware. If patches are not immediately available, implementing network controls to limit access to non-administrative users and monitoring email notifications for anomalies are recommended. Organizations should validate remediation through penetration testing to ensure that the vulnerabilities are effectively mitigated.
Detection Guidance
Organizations should monitor logs for unusual SMTP activities and verify the integrity of scheduled task notifications. Behavioral anomalies, such as unexpected changes in scheduled task notifications, should be flagged for further investigation.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability lies in its potential impact on operational integrity. Security teams should recognize that vulnerabilities such as this represent a broader trend in the exploitation of weak input validation mechanisms. One strategic defensive takeaway is to ensure comprehensive input validation across all applications.
Organizations can benefit from reviewing their security measures against common vulnerabilities by implementing a vulnerability management program and adopting best practices in application security.
Additionally, organizations should consider engaging in regular penetration testing to evaluate their defenses against evolving threats and to ensure that they are not vulnerable to similar types of attacks.
In conclusion, understanding and addressing vulnerabilities like CVE-2025-41250 is crucial for maintaining the integrity of organizational operations and preventing potential security breaches.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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