PT-2020-2790 · Cisco · Virtual Device Server+1
Published
2020-06-03
·
Updated
2020-06-10
·
CVE-2020-3234
CVSS v3.1
8.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Cisco IOS Software for Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) (affected versions not specified)
Description
A vulnerability in the virtual console authentication of Cisco IOS Software could allow an authenticated but low-privileged, local attacker to log in to the Virtual Device Server (VDS) of an affected device by using a set of default credentials. The vulnerability is due to the presence of weak, hard-coded credentials. An attacker could exploit this vulnerability by authenticating to the targeted device and then connecting to VDS through the device’s virtual console by using the static credentials. A successful exploit could allow the attacker to access the Linux shell of VDS as the root user.
Recommendations
For Cisco IOS Software releases 15.6(3)M and later, there is a workaround that addresses this vulnerability.
Cisco has released software updates that address this vulnerability.
At the moment, there is no information about specific versions that contain a fix for this vulnerability, but it is recommended to update to the latest software version.
As a temporary workaround, consider restricting access to the Virtual Device Server (VDS) until a patch is available.
Fix
Using Hardcoded Credentials
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Weakness Enumeration
Related Identifiers
Affected Products
Cisco Ios
Virtual Device Server