CVE-2001-1211 in IMail
Summary
by MITRE
Ipswitch IMail 7.0.4 and earlier allows attackers with administrator privileges to read and modify user alias and mailing list information for other domains hosted by the same server via the (1) aliasadmin or (2) listadm1 CGI programs, which do not properly verify that an administrator is the administrator for the target domain.
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Analysis
by VulDB Data Team • 09/27/2025
This vulnerability exists in Ipswitch IMail 7.0.4 and earlier versions where administrative access controls fail to properly validate domain ownership boundaries. The flaw resides in the aliasadmin and listadm1 CGI programs that handle user alias and mailing list management operations. These programs lack proper authentication and authorization checks to verify that an administrator is authorized to modify resources within a specific domain. The vulnerability represents a classic privilege escalation issue where legitimate administrative credentials can be abused to access and manipulate data belonging to different domains hosted on the same server instance. This weakness stems from inadequate input validation and insufficient domain boundary enforcement mechanisms within the web-based administrative interfaces.
The technical exploitation of this vulnerability occurs when an attacker with administrative privileges for one domain attempts to manipulate alias or mailing list configurations for another domain hosted on the same IMail server. The CGI programs fail to perform domain-specific authorization checks, allowing cross-domain administrative access. This represents a violation of the principle of least privilege and demonstrates poor access control implementation. The flaw is categorized under CWE-285 which addresses insufficient authorization in software systems, specifically targeting improper access control mechanisms that permit unauthorized domain-level operations.
The operational impact of this vulnerability is significant for organizations relying on IMail server implementations. Attackers can potentially intercept sensitive email communications, redirect email traffic, or disrupt email services for other domains hosted on the same server. This could lead to data breaches, email spoofing, or service disruption affecting multiple customers of the same hosting provider. The vulnerability undermines the security isolation between different domains, potentially allowing attackers to escalate their access within the email infrastructure. Organizations may face compliance violations and reputation damage if email data from multiple domains becomes compromised.
Mitigation strategies for this vulnerability include immediate patching of IMail server installations to versions that properly implement domain boundary checks. Administrators should enforce strict access controls and implement role-based permissions that limit administrative access to specific domains only. Network segmentation and proper firewall rules can help reduce the attack surface by restricting access to administrative CGI interfaces. The implementation of multi-factor authentication for administrative accounts and regular security audits of administrative access logs can help detect unauthorized cross-domain activities. Organizations should also consider implementing centralized logging and monitoring solutions to track administrative operations across different domains. This vulnerability aligns with ATT&CK technique T1078 which covers valid accounts and privilege escalation through unauthorized access to administrative resources, emphasizing the need for proper access control enforcement and monitoring of administrative activities.