CVE-2017-8414 : Exploit Details and Defense Strategies

A problem has been identified on D-Link DCS-1100 and DCS-1130 devices where a binary called orthrus in the /sbin folder leads to memory corruption due to a vulnerability in the sprintf operation.

Understanding CVE-2017-8414

This CVE involves a vulnerability in the orthrus binary on D-Link DCS-1100 and DCS-1130 devices that can result in memory corruption.

What is CVE-2017-8414?

The orthrus binary on the affected devices mishandles the sprintf operation, leading to memory corruption due to lack of length verification.

The Impact of CVE-2017-8414

The vulnerability allows attackers to corrupt memory, potentially leading to system crashes, unauthorized access, or other malicious activities.

Technical Details of CVE-2017-8414

This section provides more technical insights into the vulnerability.

Vulnerability Description

The orthrus binary on D-Link DCS-1100 and DCS-1130 devices corrupts memory due to improper handling of the sprintf operation.

Affected Systems and Versions

Product: n/a
Vendor: n/a
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Exploitation Mechanism

The issue arises from the sprintf operation in the orthrus binary, specifically at address 0x0000A3E4, which lacks length verification, leading to memory corruption.

Mitigation and Prevention

Protecting systems from this vulnerability is crucial to maintaining security.

Immediate Steps to Take

Disable UPnP on affected devices if possible.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update firmware to patch known vulnerabilities.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Check for firmware updates from D-Link to address the orthrus binary vulnerability.