XML External Entity injection in Cisco Firepower Device Manager On-Box

1) XML External Entity injection

EUVDB-ID: #VU52735

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1369

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied XML input in the REST API. A remote authenticated attacker can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or cause a denial of service (DoS) condition.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Firepower Device Manager On-Box: before 6.7.0

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fdm-xxe-zR7sxPfs

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.