Description
A vulnerability in the SNORT detection engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass a file policy that is configured to block the Server Message Block Version 2 (SMB2) protocol. The vulnerability is due to the incorrect detection of an SMB2 file when the detection is based on the length of the file. An attacker could exploit this vulnerability by sending a crafted SMB2 transfer request through the targeted device. A successful exploit could allow the attacker to bypass filters that are configured to block SMB2 traffic. Cisco Bug IDs: CSCve58398.
References (2)
Core 2
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/101862
Vendor Advisory x_refsource_confirm
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-firepower2
Scores
CVSS v3
5.8
EPSS
0.0160
EPSS Percentile
72.9%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Details
CWE
CWE-20
Status
published
Products (5)
cisco/secure_firewall_management_center
2.9.9
cisco/secure_firewall_management_center
2.9.10
cisco/secure_firewall_management_center
2.9.11
cisco/secure_firewall_management_center
2.9.12
n/a/Cisco Firepower System Software
Cisco Firepower System Software
Published
Nov 16, 2017
Tracked Since
Feb 18, 2026