CVE-2018-0484
Cisco SSH VRF Access Control Bypass
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.
INFO
Published Date :
Jan. 10, 2019, 6:29 p.m.
Last Modified :
Oct. 9, 2019, 11:32 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-0484.
| URL | Resource |
|---|---|
| http://www.securityfocus.com/bid/106560 | Third Party Advisory VDB Entry |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190109-ios-ssh-vrf | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-0484 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-0484 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Oct. 09, 2019
Action Type Old Value New Value Added CVSS V3 Cisco Systems, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Added CWE Cisco Systems, Inc. CWE-284 -
CWE Remap by [email protected]
Oct. 03, 2019
Action Type Old Value New Value Changed CWE CWE-284 CWE-20 NVD-CWE-noinfo -
Initial Analysis by [email protected]
Feb. 14, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:S/C:N/I:P/A:N) Added CVSS V3 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190109-ios-ssh-vrf No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190109-ios-ssh-vrf Vendor Advisory Changed Reference Type http://www.securityfocus.com/bid/106560 No Types Assigned http://www.securityfocus.com/bid/106560 Third Party Advisory, VDB Entry Added CWE CWE-284 Added CPE Configuration OR *cpe:2.3:o:cisco:ios:16.6.2:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios:16.6.4:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 16, 2019
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/106560 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-0484 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-0484
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.00%
score
0.14428
percentile