SB2021050709 - XML External Entity injection in Cisco BroadWorks Messaging Server

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Main Vulnerability Database SB2021050709

SB2021050709 - XML External Entity injection in Cisco BroadWorks Messaging Server

Published: May 7, 2021

Security Bulletin ID SB2021050709
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) XML External Entity injection (CVE-ID: CVE-2021-1530)

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

CVSSv4: 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


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 update from vendor's website.

References