CVE-2019-1854 : Exploit Details and Defense Strategies
Learn about CVE-2019-1854, a vulnerability in Cisco Expressway Series allowing remote attackers to perform directory traversal attacks. Find mitigation steps and impact details here.
Cisco Expressway Series Directory Traversal Vulnerability
Understanding CVE-2019-1854
This CVE involves a vulnerability in the management web interface of Cisco Expressway Series, potentially allowing an authenticated remote attacker to perform a directory traversal attack.
What is CVE-2019-1854?
The vulnerability arises from insufficient input validation on the web interface, enabling an attacker to send a crafted HTTP request to bypass security restrictions and access the web interface of a Cisco Unified Communications Manager linked to the affected device.
The Impact of CVE-2019-1854
If successfully exploited, the attacker could gain unauthorized access to the Cisco Unified Communications Manager interface, although valid credentials are still required for access.
Technical Details of CVE-2019-1854
Vulnerability Description
The vulnerability allows an authenticated remote attacker to engage in a directory traversal attack through the management web interface of Cisco Expressway Series.
Affected Systems and Versions
- Product: Cisco Expressway
- Vendor: Cisco
- Versions Affected: Less than X12.5.2
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: High
- Scope: Changed
- User Interaction: None
- CVSS Base Score: 4.1 (Medium Severity)
Mitigation and Prevention
Immediate Steps to Take
- Apply vendor-provided patches or updates promptly.
- Monitor vendor sources for security advisories and follow recommended actions.
Long-Term Security Practices
- Regularly review and update access controls and authentication mechanisms.
- Conduct security assessments and penetration testing to identify vulnerabilities.
Patching and Updates
- Ensure all systems are updated with the latest security patches from Cisco.