CVE-2014-10031 in Eudora WorldMail
Summary
by MITRE
Buffer overflow in the IMAPd service in Qualcomm Eudora WorldMail 9.0.333.0 allows remote attackers to execute arbitrary code via a long string in a UID command.
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Analysis
by VulDB Data Team • 12/20/2024
The vulnerability identified as CVE-2014-10031 represents a critical buffer overflow flaw within the IMAPd service component of Qualcomm Eudora WorldMail version 9.0.333.0. This security weakness resides in the mail client's internet message access protocol daemon implementation, specifically when processing user identification commands. The flaw manifests when the service receives a malformed UID command containing an excessively long string parameter, which exceeds the allocated buffer space and subsequently triggers unauthorized code execution. Such vulnerabilities fall under the common weakness enumeration CWE-121, which categorizes buffer overflow conditions where insufficient bounds checking allows memory corruption. The attack vector operates entirely over network communication, requiring no local privileges or user interaction, making it particularly dangerous for remote exploitation scenarios.
The technical implementation of this vulnerability demonstrates how improper input validation in network services can lead to complete system compromise. When a remote attacker sends a specially crafted UID command with a string length exceeding the buffer capacity, the service fails to perform adequate bounds checking before copying data into memory. This memory corruption typically results in stack smashing or heap overflow conditions that can be leveraged to overwrite return addresses, function pointers, or other critical program state information. The exploitation process often involves crafting payload data that, when processed, redirects program execution flow to malicious code injected by the attacker. This behavior aligns with attack techniques documented in the attack pattern taxonomy under the MITRE ATT&CK framework, specifically relating to privilege escalation and code injection methods.
The operational impact of this vulnerability extends beyond simple remote code execution, as it fundamentally compromises the integrity and confidentiality of email communications handled by the affected system. Organizations utilizing this version of WorldMail face significant risk of unauthorized access to sensitive email data, potential lateral movement within networks through compromised email servers, and possible establishment of persistent backdoors. The vulnerability affects both the client-side application and any server infrastructure that relies on the IMAPd service for email handling. Given that many organizations still maintained legacy email systems, this flaw represented a substantial risk for enterprises that had not yet migrated to more secure modern email platforms. The vulnerability's classification as remote and executable without authentication makes it particularly attractive to threat actors seeking to establish footholds in enterprise environments.
Mitigation strategies for CVE-2014-10031 primarily focus on immediate patch deployment and network segmentation measures. Organizations should prioritize upgrading to patched versions of Qualcomm Eudora WorldMail or migrating to more secure email solutions such as Microsoft Exchange, Zimbra, or other modern platforms that have addressed similar buffer overflow vulnerabilities. Network-level protections include implementing firewalls that restrict access to IMAP ports, deploying intrusion detection systems to monitor for anomalous UID command patterns, and establishing network segmentation to limit lateral movement. System hardening measures should involve disabling unnecessary IMAP services, implementing strict input validation controls, and regularly monitoring system logs for signs of exploitation attempts. Additionally, security teams should conduct thorough vulnerability assessments to identify any other instances of similar buffer overflow issues within legacy systems, as this vulnerability type often indicates broader architectural weaknesses that may affect other components of the email infrastructure. The remediation process should also include comprehensive incident response planning to address potential exploitation attempts and ensure rapid response capabilities when such attacks occur.