Vulnerability in Cisco iOS
CVE-2018-0484
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.008 (54.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190109… (vendor-advisory, Vendor Advisory)
- www.securityfocus.com/bid/106560 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-0484?
- CVE-2018-0484 is a medium-severity vulnerability in Cisco iOS, classified under Improper Access Control. CVSS score: 5.3/10. Published 2019-01-10.
- How severe is CVE-2018-0484?
- Medium severity. CVSS v3 base score is 5.3 out of 10.