XXE in Cisco Firepower Threat Defense Software
CVE-2021-1369
A vulnerability in the REST API of Cisco Firepower Device Manager (FDM) On-Box Software could allow an authenticated, remote attacker to gain read and write access to information that is stored on an affected device. This vulnerability is due to the improper handling of XML External Entity (XXE) entries when parsing certain XML files. An attacker could exploit this vulnerability by sending malicious requests that contain references in XML entities to an affected system. A successful exploit could allow the attacker to retrieve files from the local system, resulting in the disclosure of sensitive information or causing a partial denial of service (DoS) condition on the affected device.
Vulnerability class: XXE (XML External Entity)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L.
EPSS exploit prediction
EPSS: 0.010 (60.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fdm-xxe-… (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-1369?
- CVE-2021-1369 is a medium-severity vulnerability in Cisco Firepower Threat Defense Software, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 5.4/10. Published 2021-04-29.
- How severe is CVE-2021-1369?
- Medium severity. CVSS v3 base score is 5.4 out of 10.