#VU52964 XML External Entity injection in Cisco BroadWorks Messaging Server - CVE-2021-1530
Published: May 7, 2021
Vulnerability identifier: #VU52964
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-1530
CWE-ID: CWE-611
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Cisco BroadWorks Messaging Server
Cisco BroadWorks Messaging Server
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to gain access to sensitive information or perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied XML input in the web-based management interface. 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 condition.
Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.
Remediation
Install updates from vendor's website.