// For flags

CVE-2019-15977

Cisco Data Center Network Manager Authentication Bypass Vulnerabilities

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Multiple vulnerabilities in the authentication mechanisms of Cisco Data Center Network Manager (DCNM) could allow an unauthenticated, remote attacker to bypass authentication and execute arbitrary actions with administrative privileges on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

Múltiples vulnerabilidades en los mecanismos de autenticación de Cisco Data Center Network Manager (DCNM), podrían permitir a un atacante remoto no autenticado omitir la autenticación y ejecutar acciones arbitrarias con privilegios administrativos sobre un dispositivo afectado. Para más información sobre estas vulnerabilidades, véase la sección Detalles de este aviso.

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Cisco Data Center Network Manager. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.
The specific flaw exists within the configuration of the internal database. A hardcoded encryption key allows any user who accesses the encrypted password for the database to obtain the plaintext password. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of SYSTEM.

*Credits: Steven Seeley (mr_me) of Source Incite
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-09-06 CVE Reserved
  • 2020-01-03 CVE Published
  • 2020-02-06 First Exploit
  • 2024-04-27 EPSS Updated
  • 2024-09-17 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-798: Use of Hard-coded Credentials
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
 Data Center Network Manager
Search vendor "Cisco" for product "Data Center Network Manager"
 < 11.3\(1\)
Search vendor "Cisco" for product "Data Center Network Manager" and version " < 11.3\(1\)"
-
Affected