CVE-2018-0484 (GCVE-0-2018-0484)

Vulnerability from cvelistv5 – Published: 2019-01-10 18:00 – Updated: 2024-11-19 19:18
VLAI
Title
Cisco IOS and IOS XE Software Secure Shell Connection on VRF Vulnerability
Summary
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.
Severity
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-19 17:25 UTC
CWE
Assigner
cisco CNA under the mitre root
CNA scorecard C 66/100 over 395 records in the last 180 days details
References
URL Tags
https://tools.cisco.com/security/center/content/C… vendor-advisoryx_refsource_CISCO
http://www.securityfocus.com/bid/106560 vdb-entryx_refsource_BID
Impacted products
Vendor Product Version CPE status
Cisco Cisco IOS Affected: n/a
guessed Create a notification for this product.
Date Public
2019-01-09 00:00
Show details on NVD website
To clipboard 

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            "defect": [
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            "discovery": "INTERNAL"
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          "title": "Cisco IOS and IOS XE Software Secure Shell Connection on VRF Vulnerability",
          "x_legacyV4Record": {
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}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.