SB2021011817 - Denial of service in Cisco Firepower Management Center
Published: January 18, 2021
Security Bulletin ID
SB2021011817
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) XML Entity Expansion (CVE-ID: CVE-2021-1267)
CWE-ID: CWE-776 - Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
CVSSv4: 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/E:U/U:Clear
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.
Remediation
Install update from vendor's website.