SB2020100107 - Arbitrary Code Execution in Cisco IOS XE Software
Published: October 1, 2020
Security Bulletin ID
SB2020100107
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2020-3423)
The vulnerability allows a local user to execute arbitrary code on the target system.
The vulnerability exists due to insufficient restrictions on Lua function calls within the context of user-supplied Lua scripts. A local administrator can use a specially crafted Lua script, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.