SQL Injection in Jinher OA

Executive Summary

This vulnerability is a critical SQL injection flaw found in Jinher OA version 1.0, specifically in the file /C6/JHSoft.Web.PlanSummarize/PlanGiveOut.aspx. It arises from improper handling of the httpOID parameter, which is concatenated directly into SQL queries without validation or parameterization.

Because of this flaw, an unauthenticated attacker can inject arbitrary SQL commands remotely by sending a crafted HTTP GET request. This can lead to unauthorized access to sensitive data, privilege escalation, remote code execution, or even complete system compromise.

The affected backend database is Microsoft SQL Server.

Useful 0 Not Useful 0

Impact Analysis

Exploitation of this vulnerability can have severe impacts including unauthorized access to sensitive information, escalation of privileges within the system, execution of arbitrary code remotely, and potentially full compromise of the affected system.

Since the attack requires no authentication and can be performed remotely, it poses a significant security risk to any organization using Jinher OA 1.0.

Useful 0 Not Useful 0

Detection Guidance

This vulnerability can be detected by monitoring for suspicious HTTP GET requests targeting the endpoint /C6/JHSoft.Web.PlanSummarize/PlanGiveOut.aspx with manipulated httpOID parameters that may contain SQL injection payloads.

Network detection can involve capturing and analyzing HTTP traffic for unusual or crafted requests to the vulnerable URL.

Example commands to detect potential exploitation attempts include using tools like curl or wget to test the endpoint, or using network monitoring tools such as tcpdump or Wireshark to filter HTTP requests.

• Using curl to test for SQL injection: curl "http://target/C6/JHSoft.Web.PlanSummarize/PlanGiveOut.aspx?httpOID=1' OR '1'='1"
• Using tcpdump to capture HTTP GET requests to the vulnerable path: tcpdump -A -s 0 'tcp port 80 and (((ip[2:2] - ((ip[0]&0xf)<<2)) - ((tcp[12]&0xf0)>>2)) != 0)' | grep "/C6/JHSoft.Web.PlanSummarize/PlanGiveOut.aspx"
• Using grep on web server logs to find suspicious httpOID parameters: grep "PlanGiveOut.aspx" /var/log/httpd/access_log | grep "httpOID="

Useful 0 Not Useful 0

Mitigation Strategies

Immediate mitigation steps include implementing parameterized queries and strict input validation on the httpOID parameter to prevent SQL injection.

Additional measures involve applying the principle of least privilege to the database user accounts, ensuring they have minimal permissions necessary.

Deploying a web application firewall (WAF) to detect and block malicious SQL injection attempts can also help mitigate exploitation.

Regular security audits and testing of the affected application component are recommended to identify and fix vulnerabilities.

Useful 0 Not Useful 0

Compliance Impact

The SQL injection vulnerability in Jinher OA 1.0 allows unauthenticated attackers to potentially access sensitive data, escalate privileges, and compromise the system. Such unauthorized access and data breaches can lead to violations of data protection regulations like GDPR and HIPAA, which mandate the protection of personal and sensitive information.

Failure to address this vulnerability may result in non-compliance with these standards due to inadequate security controls, exposing organizations to legal and financial penalties.

Useful 0 Not Useful 0