Vulnerability Details : CVE-2020-3364
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.
Vulnerability category: BypassGain privilege
Products affected by CVE-2020-3364
- cpe:2.3:o:cisco:ios_xr:7.1.1:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:7.0.11:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:6.7.1:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:7.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:7.0.12:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:7.1.15:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-3364
0.18%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 54 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-3364
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
|
5.3
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
3.9
|
1.4
|
Cisco Systems, Inc. | |
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
3.9
|
1.4
|
NIST |
CWE ids for CVE-2020-3364
-
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.Assigned by: ykramarz@cisco.com (Secondary)
-
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-3364
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xracl-zbWSWREt
Cisco IOS XR Software Standby Route Processor Gigabit Ethernet Management Interface Access Control List Bypass VulnerabilityMitigation;Vendor Advisory
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