EN

CVE-2024-20338

High
7.3
0.05.010.0
Year
2024
Published
Mar 6, 2024
Known Affected Devices
0
CVSS Score
7.3

What is CVE-2024-20338?

A vulnerability in the ISE Posture (System Scan) module of Cisco Secure Client for Linux could allow an authenticated, local attacker to elevate privileges on an affected device. This vulnerability is due to the use of an uncontrolled search path element. An attacker could exploit this vulnerability by copying a malicious library file to a specific directory in the filesystem and persuading an administrator to restart a specific process. A successful exploit could allow the attacker to execute arbitrary code on an affected device with root privileges.

CVSS Vector Breakdown

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

Basic user account required (e.g. standard login without admin rights).

UI
User Interaction
Required

Victim must take an action (e.g. click a link, open a file) for the exploit to succeed.

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
High

Complete denial of service. The component becomes fully unavailable.

Known Affected Devices

Cisco Cisco ISR 4461 Cisco Cisco ISR 927 Cisco Cisco ISR 951 Cisco Cisco ASR 1001-X Cisco Cisco ASR 1002-HX Cisco Cisco ASR 1004 Cisco Cisco ASR 1009-X Cisco Cisco ASR 9001 Cisco Cisco ASR 9006 Cisco Cisco ASR 9010 Cisco Cisco ASR 9901 Cisco Cisco ASR 9910 Cisco Cisco ASR 9912 Cisco Cisco Catalyst 2960-24TC-L Cisco Cisco Catalyst 2960X-48TS-L Cisco Cisco Catalyst 2960X-24PSQ-L Cisco Cisco Catalyst 2960X-48FPS-L Cisco Cisco Catalyst 2960XR-48TS-I Cisco Cisco Catalyst 2960L-24TS-LL Cisco Cisco Catalyst 3650-24TS-L Cisco Cisco Catalyst 3650-24PS-L Cisco Cisco Catalyst 3650-48TS-L Cisco Cisco Catalyst 9200-24P Cisco Cisco Catalyst 9200-24T Cisco Cisco Catalyst 9200-48T Cisco Cisco Catalyst 9200L-24P-4X Cisco Cisco Catalyst 9200L-48P-4G Cisco Cisco Catalyst 9300-24T Cisco Cisco Catalyst 9300-24U Cisco Cisco Catalyst 9300-48T Cisco Cisco Catalyst 9300-48UXM Cisco Cisco Catalyst 9300L-24T-4G Cisco Cisco Catalyst 9300L-48T-4G Cisco Cisco Catalyst 9404R Cisco Cisco Catalyst 9407R Cisco Cisco Catalyst 9500-16X Cisco Cisco Catalyst 9500-48Y4C Cisco Cisco Catalyst 9600-40YC Cisco Cisco Nexus 7004 Cisco Cisco Nexus 7018 Cisco Cisco Nexus 9364C Cisco Cisco Nexus 9508 Cisco Cisco ASA 5585-X SSP-20 Cisco Cisco Firepower 1010 Cisco Cisco Firepower 1120 Cisco Cisco Firepower 2110 Cisco Cisco Firepower 2120 Cisco Cisco Firepower 2140 Cisco Cisco Firepower 4112 Cisco Cisco Firepower 4125 Cisco Cisco Firepower 4140 Cisco Cisco Firepower 4145 Cisco Cisco Catalyst 9800-L-C Cisco Cisco Catalyst 9800-L-F Cisco Cisco Meraki MS390-24

FAQ

How severe is CVE-2024-20338?

CVE-2024-20338 has a CVSS score of 7.3/10, rated as High. This is a high severity vulnerability and should be patched as soon as possible.

What does the CVSS score mean for CVE-2024-20338?

CVSS (Common Vulnerability Scoring System) rates vulnerability severity from 0.0 to 10.0. CVE-2024-20338 scores 7.3/10 (High). 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-2024-20338?

The list of devices confirmed to be affected by CVE-2024-20338 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-2024-20338?

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.