Terracotta Quartz Scheduler initDocumentParser XML External Entity Vulnerability [CVE-2019-13990]

CVE number – CVE-2019-13990

A vulnerability in Terracotta Quartz Scheduler could allow an authenticated, remote attacker to conduct an XML External Entity (XXE) attack on a targeted system.The vulnerability exists in the initDocumentParser function, as defined in the xml/XMLSchedulingDataProcessor.java source code file the affected software. An attacker could exploit this vulnerability by submitting a malicious job description to the targeted system. A successful exploit could allow the attacker to conduct an XXE attack, which could be used to conduct further attacks.Terracotta has confirmed the vulnerability and released software updates.


  • To exploit this vulnerability, the attacker must have user-level access to the targeted system. This access requirement may reduce the likelihood of a successful exploit.


  • Administrators are advised to apply the appropriate updates.

    Administrators are advised to allow only trusted users to have network access.

    Administrators are advised to run both firewall and antivirus applications to minimize the potential of inbound and outbound threats.

    Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.

    Administrators can help protect affected systems from external attacks by using a solid firewall strategy.

    Administrators are advised to monitor affected systems.

Vendor Announcements

  • Terracotta has released an issue notice at the following link: Issue 467

Fixed Software

  • Terracotta has released software updates at the following link: quartz 2.3.1

Duncan Newell

Duncan is a technology professional with over 20 years experience of working in various IT roles. He has a interest in cyber security, and has a wide range of other skills in radio, electronics and telecommunications.

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