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Cisco Access Point Software Secure Boot Bypass (cisco-sa-ap-secureboot-bypass-zT5vJkSD)

medium Nessus Plugin ID 193334

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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

According to its self-reported version, Cisco Access Point Software Secure Boot Bypass is affected by a vulnerability.

 - A vulnerability in the boot process of Cisco Access Point (AP) Software could allow an unauthenticated, physical attacker to bypass the Cisco Secure Boot functionality and load a software image that has been tampered with on an affected device. This vulnerability exists because unnecessary commands are available during boot time at the physical console. An attacker could exploit this vulnerability by interrupting the boot process and executing specific commands to bypass the Cisco Secure Boot validation checks and load an image that has been tampered with. This image would have been previously downloaded onto the targeted device. A successful exploit could allow the attacker to load the image once. The Cisco Secure Boot functionality is not permanently compromised. (CVE-2024-20265)

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Note that Nessus has not tested for these issues 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 CSCwf62026

See Also

http://www.nessus.org/u?8f22cdd0

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwf62026

Plugin Details

Severity: Medium

ID: 193334

File Name: cisco-sa-ap-secureboot-bypass-zT5vJkSD.nasl

Version: 1.0

Type: combined

Family: CISCO

Published: 4/15/2024

Updated: 4/15/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:N

CVSS Score Source: CVE-2024-20265

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

Vector: CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:ios_xe

Exploit Ease: No known exploits are available

Patch Publication Date: 3/27/2024

Vulnerability Publication Date: 3/27/2024

Reference Information

CVE: CVE-2024-20265