CVE-2020-3416: Cisco IOS XE Software for Cisco ASR 900 Series Route Switch Processor 3 Arbitrary Code Execution Vulnerabilities
First published: Thu Sep 24 2020(Updated: )
Multiple vulnerabilities in the initialization routines that are executed during bootup of Cisco IOS XE Software for Cisco ASR 900 Series Aggregation Services Routers with a Route Switch Processor 3 (RSP3) installed could allow an authenticated, local attacker with high privileges to execute persistent code at bootup and break the chain of trust. These vulnerabilities are due to incorrect validations by boot scripts when specific ROM monitor (ROMMON) variables are set. An attacker could exploit these vulnerabilities by copying a specific file to the local file system of an affected device and defining specific ROMMON variables. A successful exploit could allow the attacker to run arbitrary code on the underlying operating system (OS) with root privileges. To exploit these vulnerabilities, an attacker would need to have access to the root shell on the device or have physical access to the device.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XE | =16.12.1 | |
| Cisco IOS XE | =17.2 | |
| Cisco Asr 902 | ||
| Cisco ASR 903 | ||
| Cisco Asr 907 |
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 the vulnerability ID for these vulnerabilities?
The vulnerability ID for these vulnerabilities is CVE-2020-3416.
What is the severity of CVE-2020-3416?
The severity of CVE-2020-3416 is medium with a CVSS score of 6.7.
Which software versions are affected by CVE-2020-3416?
The affected software versions are Cisco IOS XE 16.12.1 and Cisco IOS XE 17.2.
What is the impact of CVE-2020-3416?
The vulnerability could allow an authenticated, local attacker with high privileges to execute persistent arbitrary code on the affected device.
Is there a fix available for CVE-2020-3416?
Yes, Cisco has released software updates to address these vulnerabilities. Please refer to the Cisco Security Advisory for more information.
- collector/nvd-index
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/severity
- agent/title
- agent/last-modified-date
- agent/weakness
- agent/author
- agent/tags
- agent/description
- agent/first-publish-date
- agent/event
- vendor/cisco
- canonical/cisco ios xe
- version/cisco ios xe/16.12.1
- version/cisco ios xe/17.2
- canonical/cisco asr 902
- canonical/cisco asr 903
- canonical/cisco asr 907