CVE-2020-3364
MEDIUMCisco IOS XR - Unauthenticated Access Control Bypass via Standby Route Processor Management Interface
Title source: llmDescription
A vulnerability in the access control list (ACL) functionality of the standby route processor management interface of Cisco IOS XR Software could allow an unauthenticated, remote attacker to reach the configured IP addresses on the standby route processor management Gigabit Ethernet Management interface. The vulnerability is due to a logic error that was introduced in the Cisco IOS XR Software, which prevents the ACL from working when applied against the standby route processor management interface. An attacker could exploit this vulnerability by attempting to access the device through the standby route processor management interface.
References (1)
Core 1
Core References
Mitigation, Vendor Advisory vendor-advisory
x_refsource_cisco
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xracl-zbWSWREt
Scores
CVSS v3
5.3
EPSS
0.0053
EPSS Percentile
67.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-284
CWE-863
Status
published
Products (6)
cisco/ios_xr
6.7.1
cisco/ios_xr
7.0.2
cisco/ios_xr
7.0.11
cisco/ios_xr
7.0.12
cisco/ios_xr
7.1.1
cisco/ios_xr
7.1.15
Published
Jun 18, 2020
Tracked Since
Feb 18, 2026