CVE-2024-20435

Published Jul 17, 2024 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Description

A vulnerability in the CLI of Cisco AsyncOS for Secure Web Appliance could allow an authenticated, local attacker to execute arbitrary commands and elevate privileges to root.

This vulnerability is due to insufficient validation of user-supplied input for the CLI. An attacker could exploit this vulnerability by authenticating to the system and executing a crafted command on the affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system and elevate privileges to root. To successfully exploit this vulnerability, an attacker would need at least guest credentials.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Cisco

Cisco Secure Web Appliance

affected

Version	Status	Constraints
`11.7.0-406`	affected	—
`11.7.0-418`	affected	—
`11.7.1-049`	affected	—
`11.7.1-006`	affected	—
`11.7.1-020`	affected	—
`11.7.2-011`	affected	—
`11.8.0-414`	affected	—
`11.8.1-023`	affected	—
`11.8.3-018`	affected	—
`11.8.3-021`	affected	—
`12.0.1-268`	affected	—
`12.0.3-007`	affected	—
`12.5.2-007`	affected	—
`12.5.1-011`	affected	—
`12.5.4-005`	affected	—
`12.5.5-004`	affected	—
`12.5.6-008`	affected	—
`14.5.0-498`	affected	—
`14.5.1-016`	affected	—
`14.5.2-011`	affected	—
`14.0.3-014`	affected	—
`14.0.2-012`	affected	—
`14.0.4-005`	affected	—
`14.0.5-007`	affected	—
`15.0.0-322`	affected	—
`15.0.0-355`	affected	—
`15.1.0-287`	affected	—

Configuration 1 [-]

AND

OR	cpe:2.3:o:cisco:asyncos:11.7.0-406:::::::*
	cpe:2.3:o:cisco:asyncos:11.7.0-418:::::::*
	cpe:2.3:o:cisco:asyncos:11.7.1-006:::::::*
	cpe:2.3:o:cisco:asyncos:11.7.1-020:::::::*
	cpe:2.3:o:cisco:asyncos:11.7.1-049:::::::*
	cpe:2.3:o:cisco:asyncos:11.7.2-011:::::::*
	cpe:2.3:o:cisco:asyncos:11.8.0-414:::::::*
	cpe:2.3:o:cisco:asyncos:11.8.1-023:::::::*
	cpe:2.3:o:cisco:asyncos:11.8.3-018:::::::*
	cpe:2.3:o:cisco:asyncos:11.8.3-021:::::::*
	cpe:2.3:o:cisco:asyncos:12.0.1-268:::::::*
	cpe:2.3:o:cisco:asyncos:12.0.3-007:::::::*
	cpe:2.3:o:cisco:asyncos:12.5.1-011:::::::*
	cpe:2.3:o:cisco:asyncos:12.5.2-007:::::::*
	cpe:2.3:o:cisco:asyncos:12.5.4-005:::::::*
	cpe:2.3:o:cisco:asyncos:12.5.5-004:::::::*
	cpe:2.3:o:cisco:asyncos:12.5.6-008:::::::*
	cpe:2.3:o:cisco:asyncos:14.0.2-012:::::::*
	cpe:2.3:o:cisco:asyncos:14.0.3-014:::::::*
	cpe:2.3:o:cisco:asyncos:14.0.4-005:::::::*
	cpe:2.3:o:cisco:asyncos:14.0.5-007:::::::*
	cpe:2.3:o:cisco:asyncos:14.5.0-498:::::::*
	cpe:2.3:o:cisco:asyncos:14.5.1-016:::::::*
	cpe:2.3:o:cisco:asyncos:14.5.2-011:::::::*
	cpe:2.3:o:cisco:asyncos:15.0.0-322:::::::*
	cpe:2.3:o:cisco:asyncos:15.0.0-355:::::::*
	cpe:2.3:o:cisco:asyncos:15.1.0-287:::::::*

OR	cpe:2.3:a:cisco:secure_web_appliance_virtual_s1000v:-:::::::*
	cpe:2.3:a:cisco:secure_web_appliance_virtual_s100v:-:::::::*
	cpe:2.3:a:cisco:secure_web_appliance_virtual_s300v:-:::::::*
	cpe:2.3:a:cisco:secure_web_appliance_virtual_s600v:-:::::::*
	cpe:2.3:h:cisco:secure_web_appliance_s196:-:::::::*
	cpe:2.3:h:cisco:secure_web_appliance_s396:-:::::::*
	cpe:2.3:h:cisco:secure_web_appliance_s696:-:::::::*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2024-18150	A vulnerability in the CLI of Cisco AsyncOS for Secure Web Appliance could allow an authenticated, local attacker to execute arbitrary commands and elevate privileges to root. This vulnerability is due to insufficient validation of user-supplied input for the CLI. An attacker could exploit this vulnerability by authenticating to the system and executing a crafted command on the affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system and elevate privileges to root. To successfully exploit this vulnerability, an attacker would need at least guest credentials.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.164% probability within 30 days)

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-swa-priv-esc-7uHpZsCC

History

Aug 8, 2025 2:00 AM First appearance in the feed. Affected versions updated. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Cisco asyncos Cisco secure Web Appliance S196 Cisco secure Web Appliance S396 Cisco secure Web Appliance S696 Cisco secure Web Appliance Virtual S1000v Cisco secure Web Appliance Virtual S100v Cisco secure Web Appliance Virtual S300v Cisco secure Web Appliance Virtual S600v
CPEs		cpe:2.3:a:cisco:secure_web_appliance_virtual_s1000v:-:::::::* cpe:2.3:a:cisco:secure_web_appliance_virtual_s100v:-:::::::* cpe:2.3:a:cisco:secure_web_appliance_virtual_s300v:-:::::::* cpe:2.3:a:cisco:secure_web_appliance_virtual_s600v:-:::::::* cpe:2.3:h:cisco:secure_web_appliance_s196:-:::::::* cpe:2.3:h:cisco:secure_web_appliance_s396:-:::::::* cpe:2.3:h:cisco:secure_web_appliance_s696:-:::::::* cpe:2.3:o:cisco:asyncos:11.7.0-406:::::::* cpe:2.3:o:cisco:asyncos:11.7.0-418:::::::* cpe:2.3:o:cisco:asyncos:11.7.1-006:::::::* cpe:2.3:o:cisco:asyncos:11.7.1-020:::::::* cpe:2.3:o:cisco:asyncos:11.7.1-049:::::::* cpe:2.3:o:cisco:asyncos:11.7.2-011:::::::* cpe:2.3:o:cisco:asyncos:11.8.0-414:::::::* cpe:2.3:o:cisco:asyncos:11.8.1-023:::::::* cpe:2.3:o:cisco:asyncos:11.8.3-018:::::::* cpe:2.3:o:cisco:asyncos:11.8.3-021:::::::* cpe:2.3:o:cisco:asyncos:12.0.1-268:::::::* cpe:2.3:o:cisco:asyncos:12.0.3-007:::::::* cpe:2.3:o:cisco:asyncos:12.5.1-011:::::::* cpe:2.3:o:cisco:asyncos:12.5.2-007:::::::* cpe:2.3:o:cisco:asyncos:12.5.4-005:::::::* cpe:2.3:o:cisco:asyncos:12.5.5-004:::::::* cpe:2.3:o:cisco:asyncos:12.5.6-008:::::::* cpe:2.3:o:cisco:asyncos:14.0.2-012:::::::* cpe:2.3:o:cisco:asyncos:14.0.3-014:::::::* cpe:2.3:o:cisco:asyncos:14.0.4-005:::::::* cpe:2.3:o:cisco:asyncos:14.0.5-007:::::::* cpe:2.3:o:cisco:asyncos:14.5.0-498:::::::* cpe:2.3:o:cisco:asyncos:14.5.1-016:::::::* cpe:2.3:o:cisco:asyncos:14.5.2-011:::::::* cpe:2.3:o:cisco:asyncos:15.0.0-322:::::::* cpe:2.3:o:cisco:asyncos:15.0.0-355:::::::* cpe:2.3:o:cisco:asyncos:15.1.0-287:::::::*
Vendors & Products		Cisco asyncos Cisco secure Web Appliance S196 Cisco secure Web Appliance S396 Cisco secure Web Appliance S696 Cisco secure Web Appliance Virtual S1000v Cisco secure Web Appliance Virtual S100v Cisco secure Web Appliance Virtual S300v Cisco secure Web Appliance Virtual S600v

Subscriptions

Cisco Asyncos Secure Web Appliance Secure Web Appliance S196 Secure Web Appliance S396 Secure Web Appliance S696 Secure Web Appliance Virtual S1000v Secure Web Appliance Virtual S100v Secure Web Appliance Virtual S300v Secure Web Appliance Virtual S600v

Weaknesses