CVE-2022-2677 in Apartment Visitor Management System
Summary
by MITRE • 08/06/2022
A vulnerability was found in SourceCodester Apartment Visitor Management System 1.0. It has been classified as critical. This affects an unknown part of the file index.php. The manipulation of the argument username with the input ' AND (SELECT 4955 FROM (SELECT(SLEEP(5)))RSzF) AND 'htiy'='htiy leads to sql injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-205665 was assigned to this vulnerability.
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Analysis
by VulDB Data Team • 08/30/2022
The CVE-2022-2677 vulnerability represents a critical sql injection flaw in the SourceCodester Apartment Visitor Management System version 1.0, specifically affecting the index.php file. This vulnerability stems from inadequate input validation and sanitization within the application's authentication mechanism, creating a pathway for malicious actors to execute arbitrary sql commands. The flaw manifests when the application processes the username parameter without proper escaping or parameterization, allowing attackers to inject malicious sql payloads directly into the database query execution flow. The vulnerability's classification as critical indicates its potential for severe impact, including unauthorized data access, data manipulation, and possible complete system compromise.
The technical exploitation of this vulnerability leverages time-based sql injection techniques through the strategic insertion of sleep functions within the malicious payload. The specific payload ' AND (SELECT 4955 FROM (SELECT(SLEEP(5)))RSzF) AND 'htiy'='htiy demonstrates a sophisticated approach to bypassing basic security measures while confirming the vulnerability's existence. This technique relies on the database server's response time to infer whether the sql injection was successful, as the SLEEP(5) function causes the database to pause execution for five seconds before returning results. The attacker can then use this timing-based approach to extract information from the database or execute destructive commands, with the vulnerability being remotely exploitable through the web interface. This method aligns with common sql injection attack patterns documented in the mitre att&ck framework under the technique of command and control through database interactions.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with persistent access to the system's underlying database infrastructure. An attacker could potentially escalate privileges, modify or delete visitor records, access sensitive personal information of residents, or even use the compromised system as a foothold for further network infiltration. The fact that the exploit has been publicly disclosed and is actively used increases the risk profile significantly, as it eliminates the element of surprise that typically protects systems from zero-day attacks. Organizations utilizing this system face immediate risk of data breaches and regulatory compliance violations, particularly if the visitor management system contains personally identifiable information or other sensitive data that falls under privacy regulations such as gdpr or hipaa.
Mitigation strategies for CVE-2022-2677 should prioritize immediate patching of the affected SourceCodester Apartment Visitor Management System to version 1.0 or higher, as this vulnerability has been documented and exploited in the wild. Organizations should implement proper input validation and parameterized queries throughout the application to prevent similar vulnerabilities from occurring in other components. Network-level defenses including web application firewalls and intrusion detection systems should be configured to monitor for sql injection patterns and block suspicious requests containing sleep functions or other time-based injection techniques. Additionally, database access controls should be reviewed to ensure that applications use minimal privilege accounts and that sensitive data is properly encrypted both at rest and in transit. This vulnerability exemplifies the importance of following secure coding practices and maintaining up-to-date software versions as outlined in industry standards such as the owasp top 10 and cwe guidelines for sql injection prevention, specifically addressing cwe-89 which details sql injection vulnerabilities and their remediation strategies.