CVE-2018-0484
Cisco IOS and IOS XE Software Secure Shell Connection on VRF Vulnerability
- State
- Published
- Severity
- 5.3 Medium
- Published
- Jan 10, 2019
- Updated
- Nov 19, 2024
- Reserved
- Nov 27, 2017
Description
A vulnerability in the access control logic of the Secure Shell (SSH) server of Cisco IOS and IOS XE Software may allow connections sourced from a virtual routing and forwarding (VRF) instance despite the absence of the vrf-also keyword in the access-class configuration. The vulnerability is due to a missing check in the SSH server. An attacker could use this vulnerability to open an SSH connection to an affected Cisco IOS or IOS XE device with a source address belonging to a VRF instance. Once connected, the attacker would still need to provide valid credentials to access the device.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.0 | 5.3 Medium | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N | cisco |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
Cisco IOSCisco |
|
References
- 20190109 Cisco IOS and IOS XE Software Secure Shell Connection on VRF Vulnerabilityvendor-advisory
- 106560vdb-entry
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