CVE-2019-6964 : Exploit Details and Defense Strategies
Learn about CVE-2019-6964, a heap-based buffer over-read vulnerability in the Service_SetParamStringValue function of cosa_x_cisco_com_ddns_dml.c within the RDK RDKB-20181217-1 CcspPandM module, allowing attackers to disclose sensitive information and execute arbitrary code.
A heap-based buffer over-read vulnerability in the Service_SetParamStringValue function of the cosa_x_cisco_com_ddns_dml.c file within the RDK RDKB-20181217-1 CcspPandM module allows attackers with login credentials to disclose sensitive information and execute arbitrary code.
Understanding CVE-2019-6964
An unauthorized access vulnerability exists in the Service_SetParamStringValue function of the cosa_x_cisco_com_ddns_dml.c file within the RDK RDKB-20181217-1 CcspPandM module.
What is CVE-2019-6964?
This vulnerability enables attackers with valid login credentials to disclose sensitive information and execute arbitrary code by creating an AJAX call for DDNS configuration with a precise length of 64 bytes for the username, password, or domain fields. It is associated with the CcspCommonLibrary and WebUI modules.
The Impact of CVE-2019-6964
- Attackers can exploit this vulnerability to access sensitive information and execute arbitrary code.
Technical Details of CVE-2019-6964
The following technical details provide insight into the vulnerability.
Vulnerability Description
A heap-based buffer over-read in Service_SetParamStringValue in cosa_x_cisco_com_ddns_dml.c of the RDK RDKB-20181217-1 CcspPandM module may allow attackers with login credentials to achieve information disclosure and code execution by crafting an AJAX call responsible for DDNS configuration with an exactly 64-byte username, password, or domain.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions: Not applicable
Exploitation Mechanism
- Attackers can exploit this vulnerability by creating an AJAX call for DDNS configuration with a precise length of 64 bytes for the username, password, or domain fields.
Mitigation and Prevention
Taking immediate steps and implementing long-term security practices are crucial to mitigate the risks associated with CVE-2019-6964.
Immediate Steps to Take
- Monitor for any unusual activities related to DDNS configuration.
- Implement strong password policies.
- Regularly review and update access controls.
Long-Term Security Practices
- Conduct regular security assessments and audits.
- Keep systems and software up to date.
- Educate users on cybersecurity best practices.
Patching and Updates
- Apply patches and updates provided by the software vendor to address this vulnerability.