SB2017110815 - XML External Entity injection in iText



SB2017110815 - XML External Entity injection in iText

Published: November 8, 2017 Updated: July 18, 2020

Security Bulletin ID SB2017110815
Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) XML External Entity injection (CVE-ID: CVE-2017-9096)

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The XML parsers in iText before 5.5.12 and 7.x before 7.0.3 do not disable external entities, which might allow remote attackers to conduct XML external entity (XXE) attacks via a crafted PDF.


Remediation

Install update from vendor's website.