XML Entity Expansion in Cisco Secure Firewall Management Center (formerly Firepower Management Center, FMC) - CVE-2021-1267
Published: January 13, 2021 / Updated: January 18, 2021
Vulnerability identifier: #VU49582
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-1267
CWE-ID: CWE-776
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial o service (DoS) attack.
The vulnerability exists due to improper restrictions on XML entities in the dashboard widget. A remote authenticated attacker can craft an XML-based widget on an affected server and cause a denial of service condition on the target system.
Affected software
Cisco Secure Firewall Management Center (formerly Firepower Management Center, FMC)
How to mitigate CVE-2021-1267
Install updates from vendor's website.
Cisco Secure Firewall Management Center (formerly Firepower Management Center, FMC) - update to 6.6.1