CVE-2021-1354 : Exploit Details and Defense Strategies
Discover the impact of CVE-2021-1354 on Cisco Unified Computing System Central Software, its technical details, affected systems, and mitigation strategies to safeguard against this security flaw.
A vulnerability in the certificate registration process of Cisco Unified Computing System (UCS) Central Software could allow an authenticated, adjacent attacker to register a rogue Cisco Unified Computing System Manager (UCSM). This could lead to unauthorized access to sensitive data.
Understanding CVE-2021-1354
This CVE identifies a security flaw in Cisco Unified Computing System Central Software that could be exploited by an attacker to compromise the integrity of UCSM.
What is CVE-2021-1354?
CVE-2021-1354 is a vulnerability in Cisco UCS Central Software that arises from improper certificate validation, enabling attackers to register a malicious UCSM via crafted HTTP requests.
The Impact of CVE-2021-1354
The vulnerability poses a medium severity risk, with a CVSS base score of 4.3, allowing attackers to gain access to Cisco UCS Central Software data and UCSM inventory data.
Technical Details of CVE-2021-1354
This section will delve into the vulnerability description, affected systems and versions, as well as the exploitation mechanism.
Vulnerability Description
The vulnerability in Cisco UCS Central Software stems from inadequate certificate validation, facilitating unauthorized registration of a rogue UCSM.
Affected Systems and Versions
The vulnerability affects all versions of Cisco Unified Computing System Central Software.
Exploitation Mechanism
An attacker can exploit the flaw by sending a crafted HTTP request to the registration API, thereby registering a malicious UCSM.
Mitigation and Prevention
To protect systems from CVE-2021-1354, immediate steps need to be taken with long-term security practices and timely patching.
Immediate Steps to Take
Ensure that proper certificate validation measures are in place, and closely monitor registration requests to detect potential rogue UCSM registrations.
Long-Term Security Practices
Regularly update and patch the Cisco UCS Central Software to mitigate known vulnerabilities and enhance system security.
Patching and Updates
Apply the latest security patches and updates provided by Cisco to address the vulnerability effectively.