PT-2020-2515 · Cisco · Cisco Ftd+1

Published 2020-05-06 · Updated 2023-08-16 · CVE-2020-3306

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Cisco Adaptive Security Appliance (ASA) Software (affected versions not specified) Cisco Firepower Threat Defense (FTD) Software (affected versions not specified)

Description A vulnerability in the DHCP module could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the affected device. The issue is due to incorrect processing of certain DHCP packets. An attacker could exploit this by sending a crafted DHCP packet to the affected device, potentially causing a DoS condition.

Recommendations For Cisco Adaptive Security Appliance (ASA) Software, consider disabling the DHCP module until a patch is available. For Cisco Firepower Threat Defense (FTD) Software, restrict access to the DHCP module to minimize the risk of exploitation. As a temporary workaround, avoid using the DHCP module in the affected software until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

BDU:2020-02526

CVE-2020-3306

Affected Products

Cisco Asa

Cisco Ftd

References · 6

• https://bdu.fstec.ru/vul/2020-02526 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-dos-qk8cTGLz · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-3306 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-dos-qk8cTGLz · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-3306 · Vendor Advisory
• https://t.me/cvenotify/3600 · Telegram Post