Improper input validation in Cisco ASA Next-Generation Firewall Services
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
A vulnerability exists in the process of creating default IP blocks during device initialization for Cisco ASA Next-Generation Firewall Services that could allow an unauthenticated, remote attacker to send traffic to the local IP address of the device, bypassing any filters that are configured to deny local IP management traffic. The vulnerability is due to an implementation error that exists in the process of creating default IP blocks when the device is initialized, and the way in which those IP blocks interact with user-configured filters for local IP management traffic (for example, SSH to the device). An attacker could exploit this vulnerability by sending traffic to the local IP address of the targeted device. A successful exploit could allow the attacker to connect to the local IP address of the device even when there are filters configured to deny the traffic. Cisco Bug IDs: CSCvd97962.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Cisco ASA Next-Generation Firewall Services | Cisco ASA Next-Generation Firewall Services | — | No fix listed | CNA |
- Cisco ASA Next-Generation Firewall Services Vendor— Affected Cisco ASA Next-Generation Firewall Services Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-12299
- 2026-10-03 Alias added: GHSA-mm54-9jw6-25g6
References
More Cisco Firepower Extensible Operating System vulnerabilities
- TI-2018-00269 Resource management flaw in Cisco FXOS and NX-OS unknown CVSS 3.0CRITICAL 9.8
- TI-2015-05417 An unspecified CGI script in Cisco FX-OS before 1.1.2 on Firepower 9000 devices and Cisco… CVSS 3.0CRITICAL 9.8
- TI-2019-01480 Cisco FXOS and NX-OS Software Simple Network Management Protocol Denial of Service Vulnerability CVSS 3.1HIGH 8.6
- TI-2019-01225 Cisco FXOS and NX-OS Lightweight Directory Access Protocol Denial of Service Vulnerabilities CVSS 3.0HIGH 8.6
- TI-2019-01224 Cisco FXOS and NX-OS Lightweight Directory Access Protocol Denial of Service Vulnerabilities CVSS 3.0HIGH 8.6
- TI-2020-03063 Cisco FXOS and NX-OS Software Cisco Fabric Services Denial of Service Vulnerability CVSS 3.1HIGH 8.6
Sources
- CVE-2017-12299 · CVE Program
- CVE-2017-12299 · NVD
- FIRST EPSS
- GHSA-mm54-9jw6-25g6 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences