CVE-2019-5148 : Security Advisory and Response
Learn about CVE-2019-5148 affecting Moxa AWK-3131A Firmware version 1.13. Discover the impact, technical details, and mitigation steps for this denial-of-service vulnerability.
The Moxa AWK-3131A firmware version 1.13 contains a vulnerability that can be exploited for denial-of-service attacks due to an integer underflow in its ServiceAgent functionality.
Understanding CVE-2019-5148
This CVE involves a flaw in the Moxa AWK-3131A firmware version 1.13 that allows attackers to trigger a denial-of-service condition.
What is CVE-2019-5148?
The vulnerability in the Moxa AWK-3131A firmware version 1.13 enables attackers to exploit the ServiceAgent functionality, causing an integer underflow that leads to a memory access issue.
The Impact of CVE-2019-5148
The impact of this vulnerability is rated as high, with a CVSS base score of 7.5. It can result in a denial-of-service condition, affecting the availability of the system.
Technical Details of CVE-2019-5148
This section provides more technical insights into the CVE.
Vulnerability Description
The flaw in the ServiceAgent functionality of the Moxa AWK-3131A firmware version 1.13 allows for an integer underflow, leading to an oversized memcpy operation that accesses out-of-bounds memory.
Affected Systems and Versions
- Product: Moxa
- Version: Moxa AWK-3131A Firmware version 1.13
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- The attacker can exploit this vulnerability without the need for authentication.
Mitigation and Prevention
Protecting systems from CVE-2019-5148 requires specific actions to mitigate risks.
Immediate Steps to Take
- Apply vendor-supplied patches promptly.
- Implement network segmentation to limit the impact of potential attacks.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Regularly update firmware and software to address known vulnerabilities.
- Conduct security assessments and penetration testing to identify and remediate weaknesses.
Patching and Updates
- Stay informed about security advisories from Moxa and apply patches as soon as they are available.