National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-1695 Detail

Current Description

A vulnerability in the detection engine of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, adjacent attacker to send data directly to the kernel of an affected device. The vulnerability exists because the software improperly filters Ethernet frames sent to an affected device. An attacker could exploit this vulnerability by sending crafted packets to the management interface of an affected device. A successful exploit could allow the attacker to bypass the Layer 2 (L2) filters and send data directly to the kernel of the affected device. A malicious frame successfully delivered would make the target device generate a specific syslog entry.

Source:  MITRE
Description Last Modified:  05/03/2019
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 6.5 MEDIUM
Vector: AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 2.8


Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 6.1 MEDIUM
Vector: (AV:A/AC:L/Au:N/C:N/I:C/A:N) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 6.5


Access Vector (AV): Local_Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): Complete
Availability (A): None
Additional Information:
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/108173
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-bypass Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Improper Access Control (CWE-284)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
6.2.3.12
 cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
6.3.0
Up to (excluding)
6.3.0.3
Running on/with
 cpe:2.3:h:cisco:firepower_9000:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:h:cisco:firepower_9300:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
9.8.4
 cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
9.9
Up to (excluding)
9.9.2.50
 cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
9.10
Up to (excluding)
9.10.1.17


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-1695
NVD Published Date:
05/03/2019
NVD Last Modified:
05/07/2019