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Security advisories — Feb 27, 2019

Cisco Digital Network Architecture Center Vulnerabilities

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On May 16, 2018, Cisco publicly released information on three vulnerabilities with CVSS scores of 10. The three vulnerabilities, CVE-2018-02221, CVE-2018-02682 and CVE-2018-0271 3, affect Cisco Digital Network Architecture Center. These vulnerabilities are remotely exploitable and do not require authentication. At the time of publishing, exploitation of these vulnerabilities has not been actively seen by eSentire. Due to the ease of potential exploitation, security patches should be applied as soon as a business impact review is conducted.

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CVE-2018-0222 affects all versions of Cisco Digital Network Architecture Center prior to version 1.1.3. Static default credentials in the software may allow a threat actor to log into a system and execute commands with root privileges.

CVE-2018-0268 affects all versions of Cisco Digital Network Architecture Center prior to version 1.1.4. A threat actor that has the ability to access the Kubernetes service port may execute commands with escalated privilege and compromise all affected containers.

CVE-2018-0271 affects versions prior to 1.1.2 of Cisco Digital Network Architecture Center. A failure to normalize URLs prior to servicing requests allows a threat actor to submit a specially crafted URL to gain access to critical services and potentially elevated privileges in the Digital Network Architecture Center.


References:

[1] Cisco Digital Network Architecture Center Static Credentials Vulnerability
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180516-dnac

[2] Cisco Digital Network Architecture Center Unauthorized Access Vulnerability
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180516-dna

[3] Cisco Digital Network Architecture Center Authentication Bypass Vulnerability
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180516-dna2

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