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zdiSteven Seeley (mr_me) of Source InciteZDI-20-008
HistoryJan 03, 2020 - 12:00 a.m.

Cisco Data Center Network Manager SecurityManager Hard-coded Cryptographic Key Authentication Bypass Vulnerability

2020-01-0300:00:00
Steven Seeley (mr_me) of Source Incite
www.zerodayinitiative.com
7

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

10 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C

0.968 High

EPSS

Percentile

99.7%

This vulnerability allows remote attackers to bypass authentication on affected installations of Cisco Data Center Network Manager. Authentication is not required to exploit this vulnerability. The specific flaw exists within the validation of SSO tokens of SOAP packets. The issue results from the use of a hard-coded key to validate the message digest. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of SYSTEM.

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

10 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C

0.968 High

EPSS

Percentile

99.7%