2.5.18104
2.0.1
1.0.1
CVE-2020-7356 describes a critical SQL Injection vulnerability affecting Cayin xPost versions 1.0 through 2.5.18103. This flaw allows unauthenticated attackers to inject malicious SQL code through the 'wayfinder_seqid' GET parameter, leading to potential SYSTEM command execution. A patched version, 2.5.18104, is now available to address this vulnerability.
The impact of this SQL Injection vulnerability is severe. An attacker can exploit it to bypass authentication and directly manipulate the database. Successful exploitation could lead to unauthorized access to sensitive data, including user credentials, meeting records, and potentially system configuration information. Furthermore, the ability to execute SYSTEM commands opens the door to complete system compromise, allowing attackers to install malware, modify system files, or pivot to other systems on the network. The lack of authentication required for exploitation significantly broadens the attack surface, making it a high-priority concern.
CVE-2020-7356 was publicly disclosed on August 6, 2020. While no active exploitation campaigns have been definitively linked to this specific vulnerability, the ease of exploitation and the potential for SYSTEM command execution make it a likely target for opportunistic attackers. The vulnerability’s severity (CVSS 10.0) underscores the need for prompt remediation. No KEV listing is currently available.
Organizations utilizing Cayin xPost for meeting management, particularly those with publicly accessible instances or those lacking robust input validation measures, are at significant risk. Shared hosting environments where multiple users share the same xPost instance are especially vulnerable, as a compromise of one user's account could potentially lead to a broader system compromise.
• linux / server:
journalctl -u xpost | grep "wayfinder_seqid"• generic web:
curl -s 'http://<xpost_server>/wayfinder_meeting_input.jsp?wayfinder_seqid='; echo $? # Check for unusual response codes or errorsdisclosure
漏洞利用状态
EPSS
61.51% (98% 百分位)
CVSS 向量
The primary mitigation for CVE-2020-7356 is to immediately upgrade Cayin xPost to version 2.5.18104 or later. If upgrading is not immediately feasible, consider implementing a Web Application Firewall (WAF) rule to filter and sanitize the 'wayfinder_seqid' parameter, specifically blocking any input containing SQL injection payloads. Input validation on the server-side is also crucial to prevent malicious data from reaching the database. Additionally, review and restrict database user permissions to minimize the potential damage from a successful SQL injection attack.
Actualizar Cayin xPost a una versión que corrija la vulnerabilidad de inyección SQL. Consultar al proveedor para obtener la versión corregida o aplicar las medidas de seguridad recomendadas para mitigar el riesgo de inyección SQL.
漏洞分析和关键警报直接发送到您的邮箱。
CVE-2020-7356 is a critical SQL Injection vulnerability in Cayin xPost versions 1.0–2.5.18103, allowing attackers to inject malicious SQL code and potentially execute SYSTEM commands.
If you are using Cayin xPost versions 1.0 through 2.5.18103, you are potentially affected by this vulnerability. Immediate action is required.
Upgrade Cayin xPost to version 2.5.18104 or later to remediate the vulnerability. Consider WAF rules as a temporary workaround.
While no confirmed active exploitation campaigns are publicly known, the vulnerability's severity and ease of exploitation make it a potential target.
Refer to the CAYIN security advisory for detailed information and updates regarding CVE-2020-7356.