Denial of service in Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software



Published: 2020-05-07
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-3195
CWE-ID CWE-400
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Cisco Adaptive Security Appliance (ASA)
Hardware solutions / Security hardware applicances

Cisco Firepower Threat Defense (FTD)
Hardware solutions / Security hardware applicances

Vendor Cisco Systems, Inc

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Resource exhaustion

EUVDB-ID: #VU27598

Risk: High

CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-3195

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources in the Open Shortest Path First (OSPF) implementation. A remote attacker can send specially crafted OSPF packets, trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Vendor recommends to update the Cisco FTD Software Release to version 6.4.0.9 (May 2020) and 6.5.0.5 (future release).

Vulnerable software versions

Cisco Adaptive Security Appliance (ASA): 9.12 - 9.13

Cisco Firepower Threat Defense (FTD): 6.4.0 - 6.5.0

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-ospf-memleak-DHpsgfnv


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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