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CVE-2024-20435

HIGHCVSS 7.8/10EPSS 0.16%

Last modified

CVE-2024-20435 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 0.16% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.8/10

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

EPSS Probability
0.16%

5.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoAsyncos11.7.0-406
CiscoAsyncos11.7.0-418
CiscoAsyncos11.7.1-006
CiscoAsyncos11.7.1-020
CiscoAsyncos11.7.1-049
CiscoAsyncos11.7.2-011
CiscoAsyncos11.8.0-414
CiscoAsyncos11.8.1-023
CiscoAsyncos11.8.3-018
CiscoAsyncos11.8.3-021
CiscoAsyncos12.0.1-268
CiscoAsyncos12.0.3-007
CiscoAsyncos12.5.1-011
CiscoAsyncos12.5.2-007
CiscoAsyncos12.5.4-005
CiscoAsyncos12.5.5-004
CiscoAsyncos12.5.6-008
CiscoAsyncos14.0.2-012
CiscoAsyncos14.0.3-014
CiscoAsyncos14.0.4-005
CiscoAsyncos14.0.5-007
CiscoAsyncos14.5.0-498
CiscoAsyncos14.5.1-016
CiscoAsyncos14.5.2-011
CiscoAsyncos15.0.0-322
CiscoAsyncos15.0.0-355
CiscoAsyncos15.1.0-287

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2024-20435?
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.
How severe is CVE-2024-20435?
CVE-2024-20435 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.16% probability of exploitation in the next 30 days.
How do I fix CVE-2024-20435?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-20435?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST