CVE-2019-1889 : Exploit Details and Defense Strategies
Learn about CVE-2019-1889, a high-severity vulnerability in Cisco APIC REST API allowing attackers to escalate privileges. Find mitigation steps and patching advice here.
Cisco Application Policy Infrastructure Controller REST API Privilege Escalation Vulnerability
Understanding CVE-2019-1889
This CVE involves a privilege escalation vulnerability in the REST API for software device management in Cisco Application Policy Infrastructure Controller (APIC) Software.
What is CVE-2019-1889?
An authenticated attacker could exploit a flaw in the REST API of Cisco APIC to elevate privileges to root by uploading malicious software.
The Impact of CVE-2019-1889
- CVSS Base Score: 7.2 (High Severity)
- Attack Vector: Network
- Confidentiality, Integrity, and Availability Impact: High
- Privileges Required: High
Technical Details of CVE-2019-1889
This section provides in-depth technical insights into the vulnerability.
Vulnerability Description
Insufficient validation of file paths during software upload allows an attacker to escalate privileges by uploading malicious software.
Affected Systems and Versions
- Affected Product: Cisco Application Policy Infrastructure Controller (APIC)
- Versions Affected: Less than 4.1(2g)
Exploitation Mechanism
The attacker, with administrator role access, can exploit the vulnerability by uploading malicious software through the REST API.
Mitigation and Prevention
Protect your systems from this vulnerability with the following steps:
Immediate Steps to Take
- Apply vendor-provided patches promptly.
- Restrict access to the REST API to authorized users only.
- Monitor and review REST API activities for suspicious behavior.
Long-Term Security Practices
- Regularly update and patch software and firmware.
- Conduct security training for system administrators to recognize and respond to potential threats.
Patching and Updates
Ensure timely installation of security patches and updates to mitigate the risk of exploitation.