CVE-2020-3208 : A vulnerability in the image verification feature of Cisco IOS Software for Cisc

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.

Published 2020-06-03 18:15:19

Updated 2021-10-26 16:29:56

Source Cisco Systems, Inc.

View at NVD, CVE.org

Products affected by CVE-2020-3208

Cisco » IOS » Version: 15.5(3)m1
cpe:2.3:o:cisco:ios:15.5\(3\)m1:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(1)t0a
cpe:2.3:o:cisco:ios:15.6\(1\)t0a:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.5(3)m0a
cpe:2.3:o:cisco:ios:15.5\(3\)m0a:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(1)t
cpe:2.3:o:cisco:ios:15.6\(1\)t:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(1)t1
cpe:2.3:o:cisco:ios:15.6\(1\)t1:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(1)t2
cpe:2.3:o:cisco:ios:15.6\(1\)t2:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.5(3)m3
cpe:2.3:o:cisco:ios:15.5\(3\)m3:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.5(3)m2
cpe:2.3:o:cisco:ios:15.5\(3\)m2:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.5(3)m4
cpe:2.3:o:cisco:ios:15.5\(3\)m4:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(3)m
cpe:2.3:o:cisco:ios:15.6\(3\)m:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(1)t3
cpe:2.3:o:cisco:ios:15.6\(1\)t3:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(3)m0a
cpe:2.3:o:cisco:ios:15.6\(3\)m0a:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.5(3)m4a
cpe:2.3:o:cisco:ios:15.5\(3\)m4a:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(3)m1b
cpe:2.3:o:cisco:ios:15.6\(3\)m1b:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(3)m1
cpe:2.3:o:cisco:ios:15.6\(3\)m1:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.5(3)m5
cpe:2.3:o:cisco:ios:15.5\(3\)m5:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(3)m2
cpe:2.3:o:cisco:ios:15.6\(3\)m2:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(3)m3
cpe:2.3:o:cisco:ios:15.6\(3\)m3:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.7(3)m
cpe:2.3:o:cisco:ios:15.7\(3\)m:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.5(3)m6
cpe:2.3:o:cisco:ios:15.5\(3\)m6:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.5(3)m6a
cpe:2.3:o:cisco:ios:15.5\(3\)m6a:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(3)m3a
cpe:2.3:o:cisco:ios:15.6\(3\)m3a:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.7(3)m1
cpe:2.3:o:cisco:ios:15.7\(3\)m1:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.7(3)m2
cpe:2.3:o:cisco:ios:15.7\(3\)m2:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.7(3)m3
cpe:2.3:o:cisco:ios:15.7\(3\)m3:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.5(3)m2a
cpe:2.3:o:cisco:ios:15.5\(3\)m2a:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(3)m4
cpe:2.3:o:cisco:ios:15.6\(3\)m4:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(3)m5
cpe:2.3:o:cisco:ios:15.6\(3\)m5:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.8(3)m0a
cpe:2.3:o:cisco:ios:15.8\(3\)m0a:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.8(3)m
cpe:2.3:o:cisco:ios:15.8\(3\)m:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.5(3)m8
cpe:2.3:o:cisco:ios:15.5\(3\)m8:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.5(3)m7
cpe:2.3:o:cisco:ios:15.5\(3\)m7:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.3(3)jaa1
cpe:2.3:o:cisco:ios:15.3\(3\)jaa1:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.8(3)m2a
cpe:2.3:o:cisco:ios:15.8\(3\)m2a:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.8(3)m3
cpe:2.3:o:cisco:ios:15.8\(3\)m3:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.8(3)m4
cpe:2.3:o:cisco:ios:15.8\(3\)m4:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.8(3)m5
cpe:2.3:o:cisco:ios:15.8\(3\)m5:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.5(3)m9
cpe:2.3:o:cisco:ios:15.5\(3\)m9:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.5(3)m10
cpe:2.3:o:cisco:ios:15.5\(3\)m10:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.5(3)m11
cpe:2.3:o:cisco:ios:15.5\(3\)m11:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(3)m6
cpe:2.3:o:cisco:ios:15.6\(3\)m6:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(3)m6a
cpe:2.3:o:cisco:ios:15.6\(3\)m6a:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(3)m6b
cpe:2.3:o:cisco:ios:15.6\(3\)m6b:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(3)m7
cpe:2.3:o:cisco:ios:15.6\(3\)m7:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(3)m8
cpe:2.3:o:cisco:ios:15.6\(3\)m8:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.6(3)m9
cpe:2.3:o:cisco:ios:15.6\(3\)m9:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.7(3)m4
cpe:2.3:o:cisco:ios:15.7\(3\)m4:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.7(3)m4a
cpe:2.3:o:cisco:ios:15.7\(3\)m4a:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.7(3)m4b
cpe:2.3:o:cisco:ios:15.7\(3\)m4b:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.7(3)m5
cpe:2.3:o:cisco:ios:15.7\(3\)m5:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.7(3)m6
cpe:2.3:o:cisco:ios:15.7\(3\)m6:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.7(3)m7
cpe:2.3:o:cisco:ios:15.7\(3\)m7:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.8(3)m1
cpe:2.3:o:cisco:ios:15.8\(3\)m1:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.8(3)m2
cpe:2.3:o:cisco:ios:15.8\(3\)m2:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 12.2(60)ez16
cpe:2.3:o:cisco:ios:12.2\(60\)ez16:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.0(2)sg11a
cpe:2.3:o:cisco:ios:15.0\(2\)sg11a:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829
Cisco » IOS » Version: 15.3(3)jpj
cpe:2.3:o:cisco:ios:15.3\(3\)jpj:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1120 » Version: N/A
When used together with: Cisco » 1240
When used together with: Cisco » 809
When used together with: Cisco » 829

Exploit prediction scoring system (EPSS) score for CVE-2020-3208

EPSS FAQ

0.04%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 6 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-3208

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.2	HIGH	AV:L/AC:L/Au:N/C:C/I:C/A:C	3.9	10.0	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: Complete Integrity Impact: Complete Availability Impact: Complete
6.7	MEDIUM	CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	0.8	5.9	Cisco Systems, Inc.
Attack Vector: Local Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
6.7	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	0.8	5.9	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2020-3208

CWE-264

Assigned by: ykramarz@cisco.com (Secondary)

References for CVE-2020-3208

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-ir800-img-verif-wHhLYHjK

Cisco IOS Software for Cisco 800 Series Industrial Integrated Services Routers Image Verification Bypass Vulnerability
Patch;Vendor Advisory

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Vulnerability Details : CVE-2020-3208

Products affected by CVE-2020-3208

Exploit prediction scoring system (EPSS) score for CVE-2020-3208

CVSS scores for CVE-2020-3208

CWE ids for CVE-2020-3208

References for CVE-2020-3208