Detections
Analytics
Cisco IOS XE Software Consent Token Bypass Vulnerability (cisco-sa-20190925-iosxe-ctbypass)
high Nessus Plugin ID 129586
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Synopsis
The remote device is missing a vendor-supplied security patchDescription
According to its self-reported version, Cisco IOS XE Software is affected by a vulnerability it the CLI. The source of the vulnerability is insufficient enforcement of the consent token in authorizing shell access. By authenticating to the CLI and requesting shell access, an attacker could use this vulnerability to run commands on the underlying OS.Please see the included Cisco BIDs and Cisco Security Advisory for more information.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvp34481See Also
Plugin Details
Severity: High
ID: 129586
File Name: cisco-sa-20190925-iosxe-ctbypass.nasl
Version: 1.9
Type: local
Family: CISCO
Published: 10/4/2019
Updated: 1/8/2021
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-2019-12671
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_xe
Required KB Items: Host/Cisco/IOS-XE/Version
Exploit Ease: No known exploits are available
Patch Publication Date: 9/25/2019
Vulnerability Publication Date: 9/25/2019
Reference Information
CVE: CVE-2019-12671