CVE-2020-3208: Cisco IOS Software for Cisco 800 Series Industrial Integrated Services Routers Image Verification Bypass Vulnerability
First published: Wed Jun 03 2020(Updated: )
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.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| 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 | |
| Cisco 1120 | ||
| Cisco 1240 | ||
| Cisco 809 | ||
| Cisco 829 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is CVE-2020-3208 vulnerability about?
The 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.
How severe is CVE-2020-3208?
The severity of CVE-2020-3208 is high, with a CVSS score of 6.7.
Which software versions are affected by CVE-2020-3208?
Software versions 12.2(60)ez16, 15.0(2)sg11a, 15.3(3)jaa1, 15.3(3)jpj, and various others are affected by CVE-2020-3208.
Where can I find more information about CVE-2020-3208?
You can find more information about CVE-2020-3208 on the Cisco Security Advisory page provided in the reference link.
- collector/nvd-index
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/references
- agent/severity
- agent/weakness
- agent/remedy
- agent/title
- agent/author
- agent/tags
- agent/description
- agent/first-publish-date
- agent/event
- vendor/cisco
- canonical/cisco ios
- version/cisco ios/12.2\(60\)ez16
- version/cisco ios/15.0\(2\)sg11a
- version/cisco ios/15.3\(3\)jaa1
- version/cisco ios/15.3\(3\)jpj
- version/cisco ios/15.5\(3\)m0a
- version/cisco ios/15.5\(3\)m1
- version/cisco ios/15.5\(3\)m2
- version/cisco ios/15.5\(3\)m2a
- version/cisco ios/15.5\(3\)m3
- version/cisco ios/15.5\(3\)m4
- version/cisco ios/15.5\(3\)m4a
- version/cisco ios/15.5\(3\)m5
- version/cisco ios/15.5\(3\)m6
- version/cisco ios/15.5\(3\)m6a
- version/cisco ios/15.5\(3\)m7
- version/cisco ios/15.5\(3\)m8
- version/cisco ios/15.5\(3\)m9
- version/cisco ios/15.5\(3\)m10
- version/cisco ios/15.5\(3\)m11
- version/cisco ios/15.6\(1\)t
- version/cisco ios/15.6\(1\)t0a
- version/cisco ios/15.6\(1\)t1
- version/cisco ios/15.6\(1\)t2
- version/cisco ios/15.6\(1\)t3
- version/cisco ios/15.6\(3\)m
- version/cisco ios/15.6\(3\)m0a
- version/cisco ios/15.6\(3\)m1
- version/cisco ios/15.6\(3\)m1b
- version/cisco ios/15.6\(3\)m2
- version/cisco ios/15.6\(3\)m3
- version/cisco ios/15.6\(3\)m3a
- version/cisco ios/15.6\(3\)m4
- version/cisco ios/15.6\(3\)m5
- version/cisco ios/15.6\(3\)m6
- version/cisco ios/15.6\(3\)m6a
- version/cisco ios/15.6\(3\)m6b
- version/cisco ios/15.6\(3\)m7
- version/cisco ios/15.6\(3\)m8
- version/cisco ios/15.6\(3\)m9
- version/cisco ios/15.7\(3\)m
- version/cisco ios/15.7\(3\)m1
- version/cisco ios/15.7\(3\)m2
- version/cisco ios/15.7\(3\)m3
- version/cisco ios/15.7\(3\)m4
- version/cisco ios/15.7\(3\)m4a
- version/cisco ios/15.7\(3\)m4b
- version/cisco ios/15.7\(3\)m5
- version/cisco ios/15.7\(3\)m6
- version/cisco ios/15.7\(3\)m7
- version/cisco ios/15.8\(3\)m
- version/cisco ios/15.8\(3\)m0a
- version/cisco ios/15.8\(3\)m1
- version/cisco ios/15.8\(3\)m2
- version/cisco ios/15.8\(3\)m2a
- version/cisco ios/15.8\(3\)m3
- version/cisco ios/15.8\(3\)m4
- version/cisco ios/15.8\(3\)m5
- canonical/cisco 1120
- canonical/cisco 1240
- canonical/cisco 809
- canonical/cisco 829