Cisco IOS Software for Cisco 800 Series Industrial Integrated Services Routers Image Verification Bypass (cisco-sa-ios-ir800-img-verif-wHhLYHjK)

medium Nessus Plugin ID 138147

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, IOS is affected by a vulnerability. The vulnerability is due to insufficient access restrictions on the area of code that manages the image verification feature. A successful exploit could allow the attacker to boot a malicious Cisco IOS Software image on the targeted device. To exploit this vulnerability, the attacker must have valid user credentials at privilege level 15.

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

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvq27907

Plugin Details

Severity: Medium

ID: 138147

File Name: cisco-sa-ios-ir800-img-verif-wHhLYHjK-ios.nasl

Version: 1.12

Type: combined

Family: CISCO

Published: 7/7/2020

Updated: 6/3/2021

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-2020-3208

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 5.8

Vector: CVSS:3.0/AV:L/AC:L/PR:H/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

Required KB Items: Host/Cisco/IOS/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 6/3/2020

Vulnerability Publication Date: 6/3/2020

Reference Information

CVE: CVE-2020-3208

CWE: 264

CISCO-SA: cisco-sa-ios-ir800-img-verif-wHhLYHjK

IAVA: 2020-A-0239-S

CISCO-BUG-ID: CSCvq27907

Detections

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