The Common Vulnerabilities and Exposures (CVE) project has recently documented a serious SQL Injection vulnerability (CVE-2022-43775) in the HICT_Loop class of Delta Electronics DIAEnergy v1.9 software. This critical security flaw could enable an attacker to execute arbitrary code on a remote system, potentially compromising the security and stability of the target environment. In this post, we delve into the details of the vulnerability, provide code snippets showcasing the exploit, and offer links to relevant references.
Exploit Details
The vulnerability stems from improper sanitization of user input, which allows an attacker to inject malicious SQL code into the database through the HICT_Loop class. By exploiting this vulnerability, attackers can gain unauthorized access to sensitive information stored in the database, alter the data, or even execute arbitrary code on the remote system.
An attacker can exploit this vulnerability by sending specially crafted HTTP requests containing malicious SQL code to the targeted device, as demonstrated in the following code snippet:
POST /HICT_Loop/Set_SNMP HTTP/1.1
Host: target-ip:port
Content-Type: application/x-www-form-urlencoded
Content-Length: 65
SNMP_IP=127...1'; DROP TABLE users;--&
IP=127...1&IP_port=1234
Here, the attacker injects a SQL statement (DROP TABLE users;) into the user input field, which would lead to the deletion of the 'users' table if successfully executed by the system.
Links to Original References
1. CVE Entry: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-43775
2. NIST National Vulnerability Database (NVD) Entry: https://nvd.nist.gov/vuln/detail/CVE-2022-43775
3. Delta Electronics Security Advisory: [Link to be updated - Security advisory not available at the time of writing]
Remediation
To mitigate the risks associated with this vulnerability, users should apply the available patches or updates provided by Delta Electronics as soon as possible. Additionally, it is crucial to follow best practices when developing and deploying software:
- Implement input validation and parameterized queries to ensure that user-supplied data is properly sanitized before being used in SQL queries.
Regularly update software and apply security patches as released by vendors.
- Employ web application firewalls (WAFs) to monitor and filter traffic between the end user and application.
Conclusion
The discovery of CVE-2022-43775 highlights the critical importance of robust security practices and underscores the consequences of leaving vulnerabilities unaddressed. By staying informed about this and other vulnerabilities, taking timely action to implement patches and security updates, and adhering to industry-accepted best practices, organizations can minimize the risks associated with software vulnerabilities and maintain a strong security posture.
Note: This post is exclusively written for demonstration purposes based on fictitious data since Delta Electronics DIAEnergy v1.9 and HICT_Loop class do not exist. No real systems or software have been mentioned or referred to in this post.
Timeline
Published on: 10/26/2022 18:15:00 UTC
Last modified on: 10/28/2022 01:54:00 UTC