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prionPRIOn knowledge basePRION:CVE-2013-0340
HistoryJan 21, 2014 - 6:55 p.m.

Xxe

2014-01-2118:55:00
PRIOn knowledge base
www.prio-n.com
22

AI Score

7.2

Confidence

Low

EPSS

0.005

Percentile

76.9%

expat 2.1.0 and earlier does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because expat already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed, and each affected application would need its own CVE.

References