CVE-2024-20429: asyncos Injection — Fix

Description

A vulnerability in the web-based management interface of Cisco AsyncOS for Secure Email Gateway could allow an authenticated, remote attacker to execute arbitrary system commands on an affected device. This vulnerability is due to insufficient input validation in certain portions of the web-based management interface. An attacker could exploit this vulnerability by sending a crafted HTTP request to the affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with root privileges. To successfully exploit this vulnerability, an attacker would need at least valid Operator credentials.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Weakness Type (CWE)

CWE-74 CWE-74

Affected Products

Vendor	Product	Versions
cisco	asyncos	All
cisco	asyncos	All
cisco	asyncos	All
cisco	asyncos	All
cisco	asyncos	All
cisco	asyncos	All
cisco	asyncos	All
cisco	asyncos	All
cisco	asyncos	All
cisco	asyncos	All
cisco	asyncos	All
cisco	asyncos	All
cisco	asyncos	All
cisco	asyncos	All
cisco	asyncos	All
cisco	asyncos	All
cisco	asyncos	All
cisco	asyncos	All
cisco	secure_email_gateway_virtual_appliance_c100v	All
cisco	secure_email_gateway_virtual_appliance_c300v	All
cisco	secure_email_gateway_virtual_appliance_c600v	All
cisco	secure_email_gateway_c195	All
cisco	secure_email_gateway_c395	All
cisco	secure_email_gateway_c695	All

References

Advisories & Patches

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-priv-esc-ssti-xNO2EOGZ https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-priv-esc-ssti-xNO2EOGZ

Frequently Asked Questions

What is CVE-2024-20429? +

A vulnerability in the web-based management interface of Cisco AsyncOS for Secure Email Gateway could allow an authenticated, remote attacker to execute arbitrary system commands on an affected device. This vulnerability is due to insufficient input validation in certain portions of the web-based management interface. An attacker could exploit this vulnerability by sending a crafted HTTP request to the affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with root privileges. To successfully exploit this vulnerability, an attacker would need at least valid Operator credentials. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2024-20429? +

CVE-2024-20429 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-20429? +

CVE-2024-20429 affects products from cisco, specifically: asyncos, secure_email_gateway_c195, secure_email_gateway_c395, secure_email_gateway_c695, secure_email_gateway_virtual_appliance_c100v, secure_email_gateway_virtual_appliance_c300v, secure_email_gateway_virtual_appliance_c600v. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-20429? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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