CVE-2018-0300 — HIGH (7.2) — White Hats Nepal

Vulnerability Description

A vulnerability in the process of uploading new application images to Cisco FXOS on the Cisco Firepower 4100 Series Next-Generation Firewall (NGFW) and Firepower 9300 Security Appliance could allow an authenticated, remote attacker using path traversal techniques to create or overwrite arbitrary files on an affected device. The vulnerability is due to insufficient validation during the application image upload process. An attacker could exploit this vulnerability by creating an application image containing malicious code and installing the image on the affected device using the CLI or web-based user interface (web UI). These actions occur prior to signature verification and could allow the attacker to create and execute arbitrary code with root privileges. Note: A missing or invalid signature in the application image will cause the upload process to fail, but does not prevent the exploit. Cisco Bug IDs: CSCvc21901.

CVSS Score

7.2

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Cisco	Fxos	2.0\(1.68\)
Cisco	Firepower 4110	-
Cisco	Firepower 4120	-
Cisco	Firepower 4140	-
Cisco	Firepower 4150	-
Cisco	Firepower 9300 Security Appliance	-

Related Weaknesses (CWE)

CWE-22

References

http://www.securitytracker.com/id/1041169Third Party AdvisoryVDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
http://www.securitytracker.com/id/1041169Third Party AdvisoryVDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory

FAQ

What is CVE-2018-0300?

CVE-2018-0300 is a vulnerability with a CVSS score of 7.2 (HIGH). A vulnerability in the process of uploading new application images to Cisco FXOS on the Cisco Firepower 4100 Series Next-Generation Firewall (NGFW) and Firepower 9300 Security Appliance could allow an...

How severe is CVE-2018-0300?

CVE-2018-0300 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-0300?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Fxos, Cisco Firepower 4110, Cisco Firepower 4120, Cisco Firepower 4140, Cisco Firepower 4150.