CVE Vulnerabilities

CVE-2020-3208

Published: Jun 03, 2020 | Modified: Oct 26, 2021
CVSS 3.x
6.7
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.2 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu

A vulnerability in the image verification feature of Cisco IOS Software for Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) could allow an authenticated, local attacker to boot a malicious software image on an affected device. The vulnerability is due to insufficient access restrictions on the area of code that manages the image verification feature. An attacker could exploit this vulnerability by first authenticating to the targeted device and then logging in to the Virtual Device Server (VDS) of an affected device. The attacker could then, from the VDS shell, disable Cisco IOS Software integrity (image) verification. 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.

Affected Software

Name Vendor Start Version End Version
Ios Cisco 12.2(60)ez16 (including) 12.2(60)ez16 (including)
Ios Cisco 15.0(2)sg11a (including) 15.0(2)sg11a (including)
Ios Cisco 15.3(3)jaa1 (including) 15.3(3)jaa1 (including)
Ios Cisco 15.3(3)jpj (including) 15.3(3)jpj (including)
Ios Cisco 15.5(3)m0a (including) 15.5(3)m0a (including)
Ios Cisco 15.5(3)m1 (including) 15.5(3)m1 (including)
Ios Cisco 15.5(3)m2 (including) 15.5(3)m2 (including)
Ios Cisco 15.5(3)m2a (including) 15.5(3)m2a (including)
Ios Cisco 15.5(3)m3 (including) 15.5(3)m3 (including)
Ios Cisco 15.5(3)m4 (including) 15.5(3)m4 (including)
Ios Cisco 15.5(3)m4a (including) 15.5(3)m4a (including)
Ios Cisco 15.5(3)m5 (including) 15.5(3)m5 (including)
Ios Cisco 15.5(3)m6 (including) 15.5(3)m6 (including)
Ios Cisco 15.5(3)m6a (including) 15.5(3)m6a (including)
Ios Cisco 15.5(3)m7 (including) 15.5(3)m7 (including)
Ios Cisco 15.5(3)m8 (including) 15.5(3)m8 (including)
Ios Cisco 15.5(3)m9 (including) 15.5(3)m9 (including)
Ios Cisco 15.5(3)m10 (including) 15.5(3)m10 (including)
Ios Cisco 15.5(3)m11 (including) 15.5(3)m11 (including)
Ios Cisco 15.6(1)t (including) 15.6(1)t (including)
Ios Cisco 15.6(1)t0a (including) 15.6(1)t0a (including)
Ios Cisco 15.6(1)t1 (including) 15.6(1)t1 (including)
Ios Cisco 15.6(1)t2 (including) 15.6(1)t2 (including)
Ios Cisco 15.6(1)t3 (including) 15.6(1)t3 (including)
Ios Cisco 15.6(3)m (including) 15.6(3)m (including)
Ios Cisco 15.6(3)m0a (including) 15.6(3)m0a (including)
Ios Cisco 15.6(3)m1 (including) 15.6(3)m1 (including)
Ios Cisco 15.6(3)m1b (including) 15.6(3)m1b (including)
Ios Cisco 15.6(3)m2 (including) 15.6(3)m2 (including)
Ios Cisco 15.6(3)m3 (including) 15.6(3)m3 (including)
Ios Cisco 15.6(3)m3a (including) 15.6(3)m3a (including)
Ios Cisco 15.6(3)m4 (including) 15.6(3)m4 (including)
Ios Cisco 15.6(3)m5 (including) 15.6(3)m5 (including)
Ios Cisco 15.6(3)m6 (including) 15.6(3)m6 (including)
Ios Cisco 15.6(3)m6a (including) 15.6(3)m6a (including)
Ios Cisco 15.6(3)m6b (including) 15.6(3)m6b (including)
Ios Cisco 15.6(3)m7 (including) 15.6(3)m7 (including)
Ios Cisco 15.6(3)m8 (including) 15.6(3)m8 (including)
Ios Cisco 15.6(3)m9 (including) 15.6(3)m9 (including)
Ios Cisco 15.7(3)m (including) 15.7(3)m (including)
Ios Cisco 15.7(3)m1 (including) 15.7(3)m1 (including)
Ios Cisco 15.7(3)m2 (including) 15.7(3)m2 (including)
Ios Cisco 15.7(3)m3 (including) 15.7(3)m3 (including)
Ios Cisco 15.7(3)m4 (including) 15.7(3)m4 (including)
Ios Cisco 15.7(3)m4a (including) 15.7(3)m4a (including)
Ios Cisco 15.7(3)m4b (including) 15.7(3)m4b (including)
Ios Cisco 15.7(3)m5 (including) 15.7(3)m5 (including)
Ios Cisco 15.7(3)m6 (including) 15.7(3)m6 (including)
Ios Cisco 15.7(3)m7 (including) 15.7(3)m7 (including)
Ios Cisco 15.8(3)m (including) 15.8(3)m (including)
Ios Cisco 15.8(3)m0a (including) 15.8(3)m0a (including)
Ios Cisco 15.8(3)m1 (including) 15.8(3)m1 (including)
Ios Cisco 15.8(3)m2 (including) 15.8(3)m2 (including)
Ios Cisco 15.8(3)m2a (including) 15.8(3)m2a (including)
Ios Cisco 15.8(3)m3 (including) 15.8(3)m3 (including)
Ios Cisco 15.8(3)m4 (including) 15.8(3)m4 (including)
Ios Cisco 15.8(3)m5 (including) 15.8(3)m5 (including)

References