CVE Vulnerabilities

CVE-2020-6856

Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')

Published: Feb 06, 2020 | Modified: Feb 07, 2020
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
4 MEDIUM
AV:N/AC:L/Au:S/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu

An XML External Entity (XEE) vulnerability exists in the JOC Cockpit component of SOS JobScheduler 1.12 and 1.13.2 allows attackers to read files from the server via an entity declaration in any of the XML documents that are used to specify the run-time settings of jobs and orders.

Weakness

The product uses XML documents and allows their structure to be defined with a Document Type Definition (DTD), but it does not properly control the number of recursive definitions of entities.

Affected Software

Name Vendor Start Version End Version
Jobscheduler Sos-berlin 1.11 (including) 1.11 (including)
Jobscheduler Sos-berlin 1.13.2 (including) 1.13.2 (including)

Potential Mitigations

References