CVE-2017-1214 in iNotes
Summary
by MITRE
IBM iNotes 8.5 and 9.0 could allow a remote attacker to send a malformed email to a victim, that when opened could cause an information disclosure. IBM X-Force ID: 123854.
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Analysis
by VulDB Data Team • 09/11/2024
IBM iNotes version 8.5 and 9.0 contains a vulnerability that enables remote attackers to craft and deliver malformed email messages designed to trigger information disclosure when processed by the victim's email client. This vulnerability stems from insufficient input validation within the email parsing and rendering components of the iNotes email application. When a victim opens a specially crafted malicious email, the application fails to properly sanitize or validate the email content, leading to unintended information exposure. The flaw represents a classic case of insufficient sanitization and input validation, which aligns with CWE-20, the weakness category for improper input validation. The attack vector requires the victim to simply open the malicious email message, making it particularly dangerous as it does not require any additional user interaction beyond normal email consumption. This vulnerability can potentially expose sensitive data including but not limited to email headers, internal system information, or other confidential data that might be embedded within the malformed email structure. The impact extends beyond simple information disclosure as the attacker could potentially gather intelligence about the victim's email environment, internal network structures, or system configurations. From an operational perspective, this vulnerability affects organizations using IBM iNotes email services and poses a significant risk to data confidentiality and system integrity. The vulnerability is particularly concerning in enterprise environments where iNotes is widely deployed and where sensitive business communications are regularly exchanged. Organizations may be exposed to reconnaissance activities where attackers systematically test for this vulnerability to identify potential information disclosure opportunities within their email infrastructure. The attack can be executed with minimal technical expertise, as it relies on the standard email delivery mechanism rather than requiring complex exploitation techniques. This vulnerability also aligns with ATT&CK technique T1059 where adversaries leverage email-based attacks to gain access to information, though the specific technique here is information disclosure rather than command execution. The flaw demonstrates a critical gap in the email processing pipeline where the application fails to implement robust content filtering and validation mechanisms to prevent malformed data from being processed and rendered to end users. Organizations should consider implementing email filtering solutions that can detect and block suspicious email patterns, while also ensuring timely patch deployment to address this vulnerability. The vulnerability underscores the importance of maintaining up-to-date email security measures and conducting regular security assessments of email infrastructure components to identify and remediate similar issues. This particular vulnerability represents a significant risk to enterprise email security and highlights the need for comprehensive email security architectures that include multiple layers of protection against both known and emerging threats.
The vulnerability exists within the core email processing functionality of IBM iNotes, specifically in how the application handles incoming email messages that contain malformed content. When the application receives such messages, it fails to implement proper error handling and input validation mechanisms that would normally prevent malicious content from being processed and displayed to users. The attack exploits a fundamental weakness in the email rendering engine where the system does not adequately sanitize the email content before presenting it to the end user. This type of vulnerability falls under the broader category of content injection or manipulation attacks, where malicious data is crafted to exploit processing flaws in the target application. The information disclosure occurs as a result of the application's inability to properly isolate or neutralize potentially harmful email elements during the parsing process. Security researchers have noted that similar vulnerabilities in email applications often stem from inadequate boundary checking and insufficient validation of data structures within the email processing pipeline. The IBM iNotes platform's architecture appears to lack sufficient defensive measures to prevent malformed content from causing unintended information exposure. This vulnerability represents a significant gap in the application's security posture and demonstrates the importance of robust input validation and content sanitization within email processing systems. Organizations should implement additional security controls beyond the standard patch management procedures to protect against this type of information disclosure threat. The vulnerability also highlights the need for regular security testing and vulnerability assessment activities to identify weaknesses in email infrastructure components. The attack scenario is particularly dangerous because it requires no special privileges or complex exploitation techniques, making it accessible to a wide range of potential attackers. This makes the vulnerability particularly attractive for reconnaissance and information gathering activities within enterprise environments where email systems are heavily utilized. The security implications extend beyond immediate information disclosure to include potential for further exploitation if the disclosed information reveals system configurations or network details that could be leveraged in subsequent attacks. Proper mitigation requires both immediate patch deployment and longer-term architectural improvements to email security systems. The vulnerability also demonstrates the importance of maintaining awareness of security advisories from vendors like IBM and implementing timely security updates to protect against known threats in email infrastructure components.