6.7
CVSSv3

CVE-2020-3208

Published: 03/06/2020 Updated: 26/10/2021
CVSS v2 Base Score: 7.2 | Impact Score: 10 | Exploitability Score: 3.9
CVSS v3 Base Score: 6.7 | Impact Score: 5.9 | Exploitability Score: 0.8
VMScore: 641
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Summary

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 malicious user 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 malicious user 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.

Vulnerability Trend

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cisco ios 12.2\\(60\\)ez16

cisco ios 15.0\\(2\\)sg11a

cisco ios 15.3\\(3\\)jaa1

cisco ios 15.3\\(3\\)jpj

cisco ios 15.5\\(3\\)m0a

cisco ios 15.5\\(3\\)m1

cisco ios 15.5\\(3\\)m2

cisco ios 15.5\\(3\\)m2a

cisco ios 15.5\\(3\\)m3

cisco ios 15.5\\(3\\)m4

cisco ios 15.5\\(3\\)m4a

cisco ios 15.5\\(3\\)m5

cisco ios 15.5\\(3\\)m6

cisco ios 15.5\\(3\\)m6a

cisco ios 15.5\\(3\\)m7

cisco ios 15.5\\(3\\)m8

cisco ios 15.5\\(3\\)m9

cisco ios 15.5\\(3\\)m10

cisco ios 15.5\\(3\\)m11

cisco ios 15.6\\(1\\)t

cisco ios 15.6\\(1\\)t0a

cisco ios 15.6\\(1\\)t1

cisco ios 15.6\\(1\\)t2

cisco ios 15.6\\(1\\)t3

cisco ios 15.6\\(3\\)m

cisco ios 15.6\\(3\\)m0a

cisco ios 15.6\\(3\\)m1

cisco ios 15.6\\(3\\)m1b

cisco ios 15.6\\(3\\)m2

cisco ios 15.6\\(3\\)m3

cisco ios 15.6\\(3\\)m3a

cisco ios 15.6\\(3\\)m4

cisco ios 15.6\\(3\\)m5

cisco ios 15.6\\(3\\)m6

cisco ios 15.6\\(3\\)m6a

cisco ios 15.6\\(3\\)m6b

cisco ios 15.6\\(3\\)m7

cisco ios 15.6\\(3\\)m8

cisco ios 15.6\\(3\\)m9

cisco ios 15.7\\(3\\)m

cisco ios 15.7\\(3\\)m1

cisco ios 15.7\\(3\\)m2

cisco ios 15.7\\(3\\)m3

cisco ios 15.7\\(3\\)m4

cisco ios 15.7\\(3\\)m4a

cisco ios 15.7\\(3\\)m4b

cisco ios 15.7\\(3\\)m5

cisco ios 15.7\\(3\\)m6

cisco ios 15.7\\(3\\)m7

cisco ios 15.8\\(3\\)m

cisco ios 15.8\\(3\\)m0a

cisco ios 15.8\\(3\\)m1

cisco ios 15.8\\(3\\)m2

cisco ios 15.8\\(3\\)m2a

cisco ios 15.8\\(3\\)m3

cisco ios 15.8\\(3\\)m4

cisco ios 15.8\\(3\\)m5

Vendor Advisories

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 th ...