SB2019092524 - XML External Entity injection in pfsense

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Main Vulnerability Database SB2019092524

SB2019092524 - XML External Entity injection in pfsense

Published: September 25, 2019 Updated: September 27, 2019

Security Bulletin ID SB2019092524
Severity
Medium
Patch available
NO
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) XML External Entity injection (CVE-ID: CVE-2019-16701)

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

The vulnerability exists due to insufficient validation of user-supplied XML input. A remote attacker can pass a specially crafted methodCall XML document to the affected application and execute arbitrary OS commands on the system via the pfsense.exec_php call containing shell metacharacters in a parameter value.

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

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References