CVE-2019-1629 : Exploit Details and Defense Strategies
Learn about CVE-2019-1629, a vulnerability in Cisco Integrated Management Controller allowing remote attackers to write and upload arbitrary data. Find mitigation steps and patching details here.
Cisco Integrated Management Controller Arbitrary File Write Vulnerability was published on June 19, 2019, by Cisco. The vulnerability allows an unauthenticated remote attacker to gain write access and upload arbitrary data to the filesystem.
Understanding CVE-2019-1629
This CVE involves a vulnerability in the configuration import utility of Cisco Integrated Management Controller (IMC) that could be exploited by an attacker to upload malicious files.
What is CVE-2019-1629?
The vulnerability in the IMC configuration import utility allows an unauthenticated remote attacker to write and upload data to the filesystem by exploiting the failure to delete temporarily uploaded files.
The Impact of CVE-2019-1629
The vulnerability could enable an attacker to fill up the filesystem or upload harmful scripts, potentially leading to system compromise or disruption.
Technical Details of CVE-2019-1629
The following technical details provide insight into the vulnerability.
Vulnerability Description
The vulnerability in the IMC configuration import utility allows an attacker to gain unauthorized write access and upload arbitrary data to the filesystem due to the utility's failure to delete temporary files.
Affected Systems and Versions
- Product: Cisco Unified Computing System (Management Software)
- Vendor: Cisco
- Version: 4.0
Exploitation Mechanism
- An attacker can create a malicious file and upload it to the affected device, exploiting the vulnerability to fill up the filesystem or upload harmful scripts.
Mitigation and Prevention
To address CVE-2019-1629, consider the following mitigation strategies:
Immediate Steps to Take
- Apply the patches provided by Cisco to fix the vulnerability.
- Monitor filesystem usage for unexpected changes or uploads.
Long-Term Security Practices
- Regularly update and patch all software and firmware to prevent vulnerabilities.
- Implement network segmentation and access controls to limit unauthorized access.
Patching and Updates
- Cisco has released patches to address the vulnerability. Ensure timely installation of these patches to secure the system.