Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Cisco / Cisco IOS | affected n/a |
CWE
CWE-284
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190109-ios-ssh-vrf
- http://www.securityfocus.com/bid/106560
ADP enrichment
No English description supplied.
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