Detections
Analytics

Cisco Adaptive Security Appliance Software Privilege Escalation (cisco-sa-asaftd-persist-rce-FLsNXF4h)

medium Nessus Plugin ID 193896

Language:

Synopsis

The remote device is missing a vendor-supplied security patch

Description

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 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.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCwi98284

See Also

http://www.nessus.org/u?de78a8db

Plugin Details

Severity: Medium

ID: 193896

File Name: cisco-sa-asaftd-persist-rce-FLsNXF4h-asa.nasl

Version: 1.5

Type: local

Family: CISCO

Published: 4/25/2024

Updated: 5/31/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:M/C:C/I:C/A:N

CVSS Score Source: CVE-2024-20359

CVSS v3

Risk Factor: Medium

Base Score: 6

Temporal Score: 5.6

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:cisco:adaptive_security_appliance_software

Required KB Items: Host/Cisco/ASA/model

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/24/2024

Vulnerability Publication Date: 4/24/2024

CISA Known Exploited Vulnerability Due Dates: 5/1/2024

Reference Information

CVE: CVE-2024-20359

CISCO-SA: cisco-sa-asaftd-persist-rce-FLsNXF4h

IAVA: 2024-A-0252-S

CISCO-BUG-ID: CSCwi98284