CVE-2020-3305 : A vulnerability in the implementation of the Border Gateway Protocol (BGP) modul

A vulnerability in the implementation of the Border Gateway Protocol (BGP) module in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain BGP packets. An attacker could exploit this vulnerability by sending a crafted BGP packet. A successful exploit could allow the attacker to cause a DoS condition on the affected device.

Published 2020-05-06 17:15:13

Updated 2023-08-16 16:17:08

Source Cisco Systems, Inc.

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2020-3305

Cisco » Adaptive Security Appliance
Versions before (<) 9.6.4.36
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 (>=) 9.12 and before (<) 9.12.2.9
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 (>=) 9.9 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 » Firepower Threat Defense
Versions from including (>=) 6.4.0 and before (<) 6.4.0.6
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-2020-3305

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-2020-3305

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.8	HIGH	AV:N/AC:L/Au:N/C:N/I:N/A:C	10.0	6.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Complete
6.8	MEDIUM	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H	2.2	4.0	Cisco Systems, Inc.
Attack Vector: Network Attack Complexity: High 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-2020-3305

CWE-400 Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
Assigned by:
- nvd@nist.gov (Primary)
- ykramarz@cisco.com (Secondary)

References for CVE-2020-3305

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-dos-P43GCE5j

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

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Vulnerability Details : CVE-2020-3305

Products affected by CVE-2020-3305

Exploit prediction scoring system (EPSS) score for CVE-2020-3305

CVSS scores for CVE-2020-3305

CWE ids for CVE-2020-3305

References for CVE-2020-3305