CVE-2024-20359 KEV
Patch first
On CISA KEV — known exploited in the wild, due 2024-05-01.
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 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.
Scoring
| CVSS | 6.0 (MEDIUM, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N |
| EPSS | 19.43% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-94 |
| On CISA KEV | yes — remediate by 2024-05-01 |
| Public exploit | none known |
| Published | 2024-04-24 |
| Last modified | 2026-08-11 |
CISA KEV
| Name | Cisco ASA and FTD Privilege Escalation Vulnerability |
|---|---|
| Added | 2024-04-24 |
| Due | 2024-05-01 |
| Vendor / product | Cisco / Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) |
| Ransomware use | none reported |
Affected (2)
| Vendor | Product |
|---|---|
| cisco | adaptive security appliance software |
| cisco | secure firewall threat defense |
References
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-persist-rce-FLsNXF4h
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-persist-rce-FLsNXF4h
- https://blog.talosintelligence.com/arcanedoor-new-espionage-focused-campaign-found-targeting-perimeter-network-devices/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-20359
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