CVE-2012-2086 in Gajim
Summary
by MITRE
SQL injection vulnerability in the get_last_conversation_lines function in common/logger.py in Gajim before 0.15 allows remote attackers to execute arbitrary SQL commands via the jig parameter.
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Analysis
by VulDB Data Team • 12/20/2021
The CVE-2012-2086 vulnerability represents a critical SQL injection flaw in the Gajim instant messaging client software, specifically within the get_last_conversation_lines function located in the common/logger.py module. This vulnerability affects versions prior to 0.15 and exposes the application to remote code execution through maliciously crafted input. The vulnerability stems from improper input validation and sanitization within the logger component that handles conversation history tracking. When the jig parameter is processed through the get_last_conversation_lines function, the application fails to properly escape or parameterize user-supplied input before incorporating it into SQL queries, creating an avenue for attackers to inject malicious SQL commands. This type of vulnerability falls under CWE-89, which specifically addresses SQL injection flaws in software applications. The attack vector is particularly concerning as it allows remote adversaries to execute arbitrary SQL commands against the underlying database, potentially leading to complete database compromise, data exfiltration, or unauthorized access to user information. The vulnerability demonstrates a fundamental lack of input validation and secure coding practices within the application's data handling mechanisms.
The operational impact of this vulnerability extends beyond simple data theft, as it enables attackers to manipulate the database structure and content directly through the messaging application's logging functionality. An attacker could potentially extract sensitive user information including conversation histories, user credentials, or other personal data stored within the application's database. The vulnerability's remote exploitability means that attackers do not need physical access to the system or local network privileges to carry out the attack, making it particularly dangerous in environments where the messaging client is exposed to external networks. The specific function targeted by this vulnerability is part of the application's logging infrastructure, which suggests that the attack could be used to modify or delete conversation logs, potentially covering tracks of malicious activities or disrupting normal communication patterns. This type of vulnerability aligns with ATT&CK technique T1071.004, which covers application layer protocol manipulation, and T1190, which addresses exploit for client execution through application vulnerabilities.
The mitigation strategy for CVE-2012-2086 requires immediate implementation of proper input validation and parameterized queries within the affected Gajim application components. System administrators should upgrade to Gajim version 0.15 or later, which includes fixes addressing this vulnerability through proper input sanitization and secure database query construction. The fix should implement prepared statements or parameterized queries to ensure that user input cannot be interpreted as SQL commands. Additionally, the application should incorporate comprehensive input validation routines that filter or reject potentially malicious input patterns before processing. Network segmentation and firewall rules should be implemented to limit access to the messaging application where possible, reducing the attack surface. Regular security audits and code reviews should be conducted to identify similar vulnerabilities in other application components, particularly within database interaction modules. Organizations should also implement database monitoring and logging to detect any suspicious SQL activity that might indicate exploitation attempts. The vulnerability serves as a reminder of the importance of secure coding practices and proper input validation in preventing SQL injection attacks, which remain one of the most prevalent and dangerous categories of web and application security flaws.