EN

CVE-2024-20359

Medium
6.0
0.05.010.0
Year
2024
Published
Apr 24, 2024
Known Affected Devices
0
CVSS Score
6.0

What is CVE-2024-20359?

A vulnerability in a legacy capability that allowed for the preloading of VPN clients and plug-ins and that has been available in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute arbitrary code with root-level privileges. Administrator-level privileges are required to exploit this vulnerability. This vulnerability is due to improper validation of a file when it is read from system flash memory. An attacker could exploit this vulnerability by copying a crafted file to the disk0: file system of an affected device. A successful exploit could allow the attacker to execute arbitrary code on the affected device after the next reload of the device, which could alter system behavior. Because the injected code could persist across device reboots, Cisco has raised the Security Impact Rating (SIR) of this advisory from Medium to High.

CVSS Vector Breakdown

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

Requires local access — attacker must be logged in or have physical access to the device.

AC
Attack Complexity
Low

No special conditions required. Exploit can be performed reliably and repeatedly.

PR
Privileges Required
High

Administrative or root-level privileges required to exploit.

UI
User Interaction
None

No user interaction required. Exploit runs without any victim action.

S
Scope
Unchanged

Exploiting the vulnerability only affects the vulnerable component itself.

C
Confidentiality Impact
High

Complete loss of confidentiality. All data on the component may be exposed.

I
Integrity Impact
High

Complete loss of integrity. Attacker can modify any file or data on the component.

A
Availability Impact
None

No availability impact. Service remains fully operational.

Known Affected Devices

Cisco Cisco ISR 4461 Cisco Cisco ISR 951 Cisco Cisco ASR 1001-X Cisco Cisco ASR 1004 Cisco Cisco ASR 1009-X Cisco Cisco ASR 1013 Cisco Cisco ASR 9006 Cisco Cisco Catalyst 2960X-24PSQ-L Cisco Cisco Catalyst 3650-24TS-L Cisco Cisco Catalyst 3750X-24T-S Cisco Cisco Catalyst 3750X-24P-S Cisco Cisco Catalyst 9300-24U Cisco Cisco Catalyst 9300L-48P-4G Cisco Cisco Catalyst 9500-24Y4C Cisco Cisco Nexus 7009 Cisco Cisco Nexus 9504 Cisco Cisco ASA 5506-X Cisco Cisco ASA 5508-X Cisco Cisco ASA 5512-X Cisco Cisco ASA 5515-X Cisco Cisco ASA 5516-X Cisco Cisco ASA 5525-X Cisco Cisco ASA 5545-X Cisco Cisco ASA 5555-X Cisco Cisco ASA 5585-X SSP-10 Cisco Cisco ASA 5585-X SSP-40 Cisco Cisco ASA 5585-X SSP-60 Cisco Cisco Firepower 1010 Cisco Cisco Firepower 1120 Cisco Cisco Firepower 1140 Cisco Cisco Firepower 1150 Cisco Cisco Firepower 2110 Cisco Cisco Firepower 2120 Cisco Cisco Firepower 2130 Cisco Cisco Firepower 2140 Cisco Cisco Firepower 4110 Cisco Cisco Firepower 4112 Cisco Cisco Firepower 4115 Cisco Cisco Firepower 4120 Cisco Cisco Firepower 4125 Cisco Cisco Firepower 4140 Cisco Cisco Firepower 4145 Cisco Cisco Firepower 4150 Cisco Cisco Firepower 9300 Cisco Cisco Catalyst 9800-40 Cisco Cisco Catalyst 9800-80 Cisco Cisco Catalyst 9800-CL

FAQ

How severe is CVE-2024-20359?

CVE-2024-20359 has a CVSS score of 6.0/10, rated as Medium. Review the affected products list and apply vendor patches.

What does the CVSS score mean for CVE-2024-20359?

CVSS (Common Vulnerability Scoring System) rates vulnerability severity from 0.0 to 10.0. CVE-2024-20359 scores 6.0/10 (Medium). Scores 9.0–10.0 are Critical, 7.0–8.9 are High, 4.0–6.9 are Medium, and below 4.0 are Low.

Which devices are affected by CVE-2024-20359?

The list of devices confirmed to be affected by CVE-2024-20359 is shown in the "Affected Devices" section above. Check your firmware version against the vendor security advisory and apply the latest patch.

How do I fix or mitigate CVE-2024-20359?

Apply the latest firmware or software update from the vendor. Check the References section above for official advisories and patch notes. If no patch is available, consider disabling the affected feature or isolating the device from untrusted networks.