CVE-2019-12673 : A vulnerability in the FTP inspection engine of Cisco Adaptive Security (ASA) So

A vulnerability in the FTP inspection engine of Cisco Adaptive Security (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of FTP data. An attacker could exploit this vulnerability by sending malicious FTP traffic through an affected device. A successful exploit could allow the attacker to cause a DoS condition on the affected device.

Published 2019-10-02 19:15:12

Updated 2023-08-16 16:17:08

Source Cisco Systems, Inc.

View at NVD, CVE.org

Vulnerability category: OverflowInput validationDenial of service

Products affected by CVE-2019-12673

Cisco » Adaptive Security Appliance
Versions before (<) 9.6.4.34
cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Asa 5505 » Version: N/A
When used together with: Cisco » Asa 5510 » Version: N/A
When used together with: Cisco » Asa 5512-x » Version: N/A
When used together with: Cisco » Asa 5515-x » Version: N/A
When used together with: Cisco » Asa 5520 » Version: N/A
When used together with: Cisco » Asa 5525-x » Version: N/A
When used together with: Cisco » Asa 5550 » Version: N/A
When used together with: Cisco » Asa 5555-x » Version: N/A
When used together with: Cisco » Asa 5580 » Version: N/A
When used together with: Cisco » Asa 5585-x » Version: N/A
Cisco » Adaptive Security Appliance Software
Versions from including (>=) 9.10 and before (<) 9.10.1.30
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Asa 5505 » Version: N/A
When used together with: Cisco » Asa 5510 » Version: N/A
When used together with: Cisco » Asa 5512-x » Version: N/A
When used together with: Cisco » Asa 5515-x » Version: N/A
When used together with: Cisco » Asa 5520 » Version: N/A
When used together with: Cisco » Asa 5525-x » Version: N/A
When used together with: Cisco » Asa 5550 » Version: N/A
When used together with: Cisco » Asa 5555-x » Version: N/A
When used together with: Cisco » Asa 5580 » Version: N/A
When used together with: Cisco » Asa 5585-x » Version: N/A
Cisco » Adaptive Security Appliance Software
Versions from including (>=) 9.7 and before (<) 9.8.4.10
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Asa 5505 » Version: N/A
When used together with: Cisco » Asa 5510 » Version: N/A
When used together with: Cisco » Asa 5512-x » Version: N/A
When used together with: Cisco » Asa 5515-x » Version: N/A
When used together with: Cisco » Asa 5520 » Version: N/A
When used together with: Cisco » Asa 5525-x » Version: N/A
When used together with: Cisco » Asa 5550 » Version: N/A
When used together with: Cisco » Asa 5555-x » Version: N/A
When used together with: Cisco » Asa 5580 » Version: N/A
When used together with: Cisco » Asa 5585-x » Version: N/A
Cisco » Adaptive Security Appliance Software
Versions from including (>=) 9.12 and before (<) 9.12.2.5
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Asa 5505 » Version: N/A
When used together with: Cisco » Asa 5510 » Version: N/A
When used together with: Cisco » Asa 5512-x » Version: N/A
When used together with: Cisco » Asa 5515-x » Version: N/A
When used together with: Cisco » Asa 5520 » Version: N/A
When used together with: Cisco » Asa 5525-x » Version: N/A
When used together with: Cisco » Asa 5550 » Version: N/A
When used together with: Cisco » Asa 5555-x » Version: N/A
When used together with: Cisco » Asa 5580 » Version: N/A
When used together with: Cisco » Asa 5585-x » Version: N/A
Cisco » Adaptive Security Appliance Software
Versions from including (>=) 9.9 and before (<) 9.9.2.56
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Asa 5505 » Version: N/A
When used together with: Cisco » Asa 5510 » Version: N/A
When used together with: Cisco » Asa 5512-x » Version: N/A
When used together with: Cisco » Asa 5515-x » Version: N/A
When used together with: Cisco » Asa 5520 » Version: N/A
When used together with: Cisco » Asa 5525-x » Version: N/A
When used together with: Cisco » Asa 5550 » Version: N/A
When used together with: Cisco » Asa 5555-x » Version: N/A
When used together with: Cisco » Asa 5580 » Version: N/A
When used together with: Cisco » Asa 5585-x » Version: N/A
Cisco » Firepower Threat Defense
Versions from including (>=) 6.4.0 and before (<) 6.4.0.4
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
Matching versions
Cisco » Firepower Threat Defense
Versions before (<) 6.3.0.5
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2019-12673

EPSS FAQ

0.16%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 52 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-12673

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:N/A:P	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
8.6	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H	3.9	4.0	Cisco Systems, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Changed Confidentiality: None Integrity: None Availability: High
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2019-12673

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Assigned by: nvd@nist.gov (Primary)
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Assigned by: ykramarz@cisco.com (Secondary)

References for CVE-2019-12673

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-asa-dos

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software FTP Inspection Denial of Service Vulnerability
Vendor Advisory

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Vulnerability Details : CVE-2019-12673

Products affected by CVE-2019-12673

Exploit prediction scoring system (EPSS) score for CVE-2019-12673

CVSS scores for CVE-2019-12673

CWE ids for CVE-2019-12673

References for CVE-2019-12673