CVE-2019-16237 in Dino
Summary
by MITRE
Dino before 2019-09-10 does not properly check the source of an MAM message in module/xep/0313_message_archive_management.vala.
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Analysis
by VulDB Data Team • 12/19/2023
The vulnerability identified as CVE-2019-16237 affects the Dino instant messaging client version prior to 2019-09-10, specifically within the message archive management module. This flaw resides in the module/xep/0313_message_archive_management.vala file where the application fails to adequately validate the source of MAM (Message Archive Management) messages. The issue represents a critical security weakness that could allow unauthorized parties to manipulate or inject malicious content into the message archive system, potentially compromising the integrity and confidentiality of archived communications.
The technical flaw stems from insufficient input validation mechanisms within the MAM message processing pipeline. When Dino receives MAM messages for archiving, the application does not properly verify the authenticity or legitimacy of the message source before accepting and storing the content. This validation gap creates an opportunity for attackers to craft and inject malicious messages that appear to originate from legitimate sources within the network. The vulnerability specifically targets the XMPP (Extensible Messaging and Presence Protocol) implementation that follows the XEP-0313 standard for message archive management, which governs how message archives are retrieved and managed across XMPP networks.
The operational impact of this vulnerability extends beyond simple data integrity concerns, potentially enabling several attack vectors within XMPP-based communication environments. An attacker could exploit this weakness to inject forged messages into a user's message archive, creating false historical records that might be used for social engineering attacks or to manipulate communication timelines. The vulnerability also poses risks to privacy and audit integrity, as malicious actors could potentially alter or manipulate archived conversations to mislead users or security analysts. Additionally, this flaw could facilitate more sophisticated attacks such as man-in-the-middle operations where attackers intercept and modify archived messages, undermining the trustworthiness of the communication history.
This vulnerability aligns with CWE-20, which describes improper input validation, and represents a specific implementation weakness in the message source verification process. From an ATT&CK framework perspective, this issue maps to techniques involving credential access and privilege escalation through manipulation of communication systems. The flaw could be leveraged as part of broader attack chains where initial access is gained through other means, but the compromised system's message archive management capabilities are then exploited to maintain persistence or cover tracks. Organizations using Dino or similar XMPP clients should prioritize immediate patching to address this vulnerability, as the potential for message manipulation could severely compromise the security posture of communication systems that rely on archived message integrity for compliance, forensic analysis, or operational security purposes.
The remediation strategy should focus on implementing robust source verification mechanisms within the MAM message processing code, ensuring that all incoming messages undergo proper authentication checks before being archived. This includes validating message signatures, verifying source identities through established XMPP authentication protocols, and implementing proper access controls for message archive operations. Security teams should also consider monitoring for anomalous message archive activities and establishing incident response procedures for potential exploitation of this vulnerability. Organizations relying on XMPP-based communication platforms must ensure that all components are regularly updated and that proper security controls are implemented to prevent similar validation weaknesses in other message handling modules.