Vulnerabilities > CVE-2021-1267 - XML Entity Expansion vulnerability in Cisco Firepower Management Center

CVSS 4.0 - MEDIUM

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

SINGLE

Confidentiality impact

NONE

Integrity impact

NONE

Availability impact

PARTIAL

network

low complexity

cisco

CWE-776

NVD

Published: 2021-01-13

Updated: 2021-01-20

Summary

A vulnerability in the dashboard widget of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper restrictions on XML entities. An attacker could exploit this vulnerability by crafting an XML-based widget on an affected server. A successful exploit could cause increased memory and CPU utilization, which could result in a DoS condition.

Vulnerable Configurations

Part	Description	Count
Application	Cisco Cisco Firepower Management Center - Cisco Firepower Management Center 2.0.3 Cisco Firepower Management Center 2.1.0 Cisco Firepower Management Center 2.1.1 Cisco Firepower Management Center 2.2.0 Cisco Firepower Management Center 2.3.0 Cisco Firepower Management Center 2.9.8 Cisco Firepower Management Center 2.9.9 Cisco Firepower Management Center 2.9.10 Cisco Firepower Management Center 2.9.11 Cisco Firepower Management Center 2.9.12 Cisco Firepower Management Center 2.9.12.1 Cisco Firepower Management Center 2.9.12.2 Cisco Firepower Management Center 2.9.12.3 Cisco Firepower Management Center 2.9.12.4 Cisco Firepower Management Center 2.9.12.5 Cisco Firepower Management Center 2.9.12.6 Cisco Firepower Management Center 2.9.12.7 Cisco Firepower Management Center 2.9.12.8 Cisco Firepower Management Center 2.9.12.9 Cisco Firepower Management Center 2.9.12.12 Cisco Firepower Management Center 2.9.12.13 Cisco Firepower Management Center 2.9.12.14 Cisco Firepower Management Center 2.9.12.15 Cisco Firepower Management Center 2.9.13 Cisco Firepower Management Center 2.9.13.1 Cisco Firepower Management Center 2.9.13.2 Cisco Firepower Management Center 2.9.13.3 Cisco Firepower Management Center 2.9.13.4 Cisco Firepower Management Center 2.9.13.5 Cisco Firepower Management Center 2.9.13.6 Cisco Firepower Management Center 2.9.14.0 Cisco Firepower Management Center 2.9.14.2 Cisco Firepower Management Center 2.9.14.3 Cisco Firepower Management Center 2.9.14.4 Cisco Firepower Management Center 2.9.14.5 Cisco Firepower Management Center 2.9.14.14 Cisco Firepower Management Center 2.9.15 Cisco Firepower Management Center 2.9.16 Cisco Firepower Management Center 3.0.0 Cisco Firepower Management Center 4.10.3 Cisco Firepower Management Center 4.10.3.9 Cisco Firepower Management Center 5.0.0 Cisco Firepower Management Center 5.2.0 Cisco Firepower Management Center 5.3.0 Cisco Firepower Management Center 5.3.0.2 Cisco Firepower Management Center 5.3.0.3 Cisco Firepower Management Center 5.3.0.4 Cisco Firepower Management Center 5.3.1 Cisco Firepower Management Center 5.3.1.3 Cisco Firepower Management Center 5.3.1.4 Cisco Firepower Management Center 5.3.1.5 Cisco Firepower Management Center 5.3.1.6 Cisco Firepower Management Center 5.3_Base Cisco Firepower Management Center 5.4.0 Cisco Firepower Management Center 5.4.0.2 Cisco Firepower Management Center 5.4.1 Cisco Firepower Management Center 5.4.1.1 Cisco Firepower Management Center 5.4.1.2 Cisco Firepower Management Center 5.4.1.3 Cisco Firepower Management Center 5.4.1.4 Cisco Firepower Management Center 5.4.1.5 Cisco Firepower Management Center 5.4.1.6 Cisco Firepower Management Center 5.4_Base Cisco Firepower Management Center 6.0.0 Cisco Firepower Management Center 6.0.0.1 Cisco Firepower Management Center 6.0.1 Cisco Firepower Management Center 6.0.1.1 Cisco Firepower Management Center 6.0.1.2 Cisco Firepower Management Center 6.0.1.3 Cisco Firepower Management Center 6.0.1.4 Cisco Firepower Management Center 6.0_Base Cisco Firepower Management Center 6.1.0 Cisco Firepower Management Center 6.1.0.1 Cisco Firepower Management Center 6.1.0.2 Cisco Firepower Management Center 6.1.0.3 Cisco Firepower Management Center 6.1.0.4 Cisco Firepower Management Center 6.1.0.5 Cisco Firepower Management Center 6.1.0.6 Cisco Firepower Management Center 6.1.0.7 Cisco Firepower Management Center 6.2.0 Cisco Firepower Management Center 6.2.0.1 Cisco Firepower Management Center 6.2.0.2 Cisco Firepower Management Center 6.2.0.3 Cisco Firepower Management Center 6.2.0.4 Cisco Firepower Management Center 6.2.0.5 Cisco Firepower Management Center 6.2.0.6 Cisco Firepower Management Center 6.2.1 Cisco Firepower Management Center 6.2.2 Cisco Firepower Management Center 6.2.2.1 Cisco Firepower Management Center 6.2.2.2 Cisco Firepower Management Center 6.2.2.3 Cisco Firepower Management Center 6.2.2.4 Cisco Firepower Management Center 6.2.2.5 Cisco Firepower Management Center 6.2.3 Cisco Firepower Management Center 6.2.3.1 Cisco Firepower Management Center 6.2.3.2 Cisco Firepower Management Center 6.2.3.3 Cisco Firepower Management Center 6.2.3.4 Cisco Firepower Management Center 6.2.3.5 Cisco Firepower Management Center 6.2.3.6 Cisco Firepower Management Center 6.2.3.7 Cisco Firepower Management Center 6.2.3.9 Cisco Firepower Management Center 6.2.3.10 Cisco Firepower Management Center 6.2.3.11 Cisco Firepower Management Center 6.2.3.12 Cisco Firepower Management Center 6.2.3.13 Cisco Firepower Management Center 6.2.3.14 Cisco Firepower Management Center 6.2.3.15 Cisco Firepower Management Center 6.2.3.16 Cisco Firepower Management Center 6.3.0 Cisco Firepower Management Center 6.3.0.1 Cisco Firepower Management Center 6.3.0.2 Cisco Firepower Management Center 6.3.0.3 Cisco Firepower Management Center 6.3.0.4 Cisco Firepower Management Center 6.3.0.5 Cisco Firepower Management Center 6.4 Cisco Firepower Management Center 6.4.0 Cisco Firepower Management Center 6.4.0.1 Cisco Firepower Management Center 6.4.0.2 Cisco Firepower Management Center 6.4.0.3 Cisco Firepower Management Center 6.4.0.4 Cisco Firepower Management Center 6.4.0.5 Cisco Firepower Management Center 6.4.0.7 Cisco Firepower Management Center 6.4.0.8 Cisco Firepower Management Center 6.4.0.9 Cisco Firepower Management Center 6.4.0.10 Cisco Firepower Management Center 6.5.0 Cisco Firepower Management Center 6.5.0.2 Cisco Firepower Management Center 6.5.0.3 Cisco Firepower Management Center 6.5.0.4 Cisco Firepower Management Center 6.6.0 Cisco Firepower Management Center 6.6.0.1 Cisco Firepower Management Center 6.6.1	134

Common Weakness Enumeration (CWE)

CWE-776 - Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xee-DFzARDcs