CVE-2009-0637: High severity Cisco IOS vulnerability
The SCP server in Cisco IOS 12.2 through 12.4, when Role-Based CLI Access is enabled, does not enforce the CLI view configuration for file transfers, which allows remote authenticated users with an attached CLI view to (1) read or (2) overwrite arbitrary files via an SCP command.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Configuration
Disable Role-Based CLI Access on Cisco IOS 12.2 through 12.4 systems to prevent the SCP server from bypassing CLI view restrictions for file transfers.
Cisco IOS (12.2 through 12.4) Role-Based CLI Access = disabled
Event History
Frequently Asked Questions
What is the severity of CVE-2009-0637?
CVE-2009-0637 is rated as high severity due to the potential for remote file access and manipulation.
How do I fix CVE-2009-0637?
To fix CVE-2009-0637, it's recommended to upgrade to a version of Cisco IOS that is not vulnerable, specifically versions higher than the affected ranges.
What systems are affected by CVE-2009-0637?
CVE-2009-0637 affects Cisco IOS versions 12.2 through 12.4, including its various sub-versions.
What are the potential impacts of CVE-2009-0637?
The potential impacts of CVE-2009-0637 include unauthorized file access or overwriting by authenticated users.
Is there a workaround for CVE-2009-0637?
Disabling Role-Based CLI Access can serve as a temporary workaround for CVE-2009-0637 until a patch is applied.