Detections
Analytics
Cisco IOS XR Software Authenticated User Privilege Escalation (cisco-sa-iosxr-LJtNFjeN)
high Nessus Plugin ID 140793
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Synopsis
The remote device is missing a vendor-supplied security patch.Description
According to its self-reported version, Cisco IOS XR Software is affected by a privilege escalation vulnerability in task group assignment for a specific CLI command due to incorrect mapping to task groups. An attacker could exploit this vulnerability by first authenticating to the local CLI shell on the device and using the CLI command to bypass the task group–based checks. A successful exploit could allow the attacker to elevate privileges and gain full administrative control of the device. There are workarounds that address this vulnerability.Please see the included Cisco BID and Cisco Security Advisory for more information.
Solution
Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvs12604See Also
Plugin Details
Severity: High
ID: 140793
File Name: cisco-sa-iosxr-LJtNFjeN.nasl
Version: 1.10
Type: combined
Family: CISCO
Published: 9/25/2020
Updated: 9/10/2021
Configuration: Enable paranoid mode
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 5.3
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2020-3473
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 6.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:cisco:ios_xr
Required KB Items: Settings/ParanoidReport, Host/Cisco/IOS-XR/Version
Exploit Ease: No known exploits are available
Patch Publication Date: 9/2/2020
Vulnerability Publication Date: 9/2/2020
Reference Information
CVE: CVE-2020-3473