PT-2018-8696 · Cisco · Cisco Firepower System

Published 2018-04-19 · Updated 2019-10-09 · CVE-2018-0244

Positive Technologies (AI Summary)

CVSS v3.1

5.8

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions: Cisco Firepower System Software versions prior to 6.2.3

Description: A vulnerability in the detection engine could allow an unauthenticated, remote attacker to bypass a configured file action policy. This occurs due to how the SMB protocol handles a large file transfer failure, where some pieces of the file are successfully transferred before the transfer fails and is reset. An attacker could exploit this by sending a crafted SMB file transfer request, potentially passing an SMB file with malware that the device is configured to block.

Recommendations: For versions prior to 6.2.3, update to version 6.2.3 or later to resolve the issue. As a temporary workaround, consider restricting the handling of large SMB file transfers to minimize the risk of exploitation.

Fix

Protection Mechanism Failure

Weakness Enumeration

CWE-693

Related Identifiers

CVE-2018-0244

Affected Products

Cisco Firepower System

References · 4

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-fss1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-0244 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-0244 · Security Note
• http://securityfocus.com/bid/103945 · Note