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Vulnerability Details : CVE-2013-0340

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.
Publish Date : 2014-01-21 Last Update Date : 2017-06-30
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- CVSS Scores & Vulnerability Types

CVSS Score
6.8
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 264

- Products Affected By CVE-2013-0340

# Product Type Vendor Product Version Update Edition Language
1 Application Libexpat Expat 1.95.1 Version Details Vulnerabilities
2 Application Libexpat Expat 1.95.2 Version Details Vulnerabilities
3 Application Libexpat Expat 1.95.4 Version Details Vulnerabilities
4 Application Libexpat Expat 1.95.5 Version Details Vulnerabilities
5 Application Libexpat Expat 1.95.6 Version Details Vulnerabilities
6 Application Libexpat Expat 1.95.7 Version Details Vulnerabilities
7 Application Libexpat Expat 1.95.8 Version Details Vulnerabilities
8 Application Libexpat Expat 2.0.0 Version Details Vulnerabilities
9 Application Libexpat Expat 2.0.1 Version Details Vulnerabilities
10 Application Libexpat Expat 2.1.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Libexpat Expat 10

- References For CVE-2013-0340

http://openwall.com/lists/oss-security/2013/02/22/3
MLIST [oss-security] 20130221 CVEs for libxml2 and expat internal and external XML entity expansion
http://www.openwall.com/lists/oss-security/2013/04/12/6
MLIST [oss-security] 20130413 Re-evaluating expat/libxml2 CVE assignments
https://security.gentoo.org/glsa/201701-21
GENTOO GLSA-201701-21
http://securitytracker.com/id?1028213
SECTRACK 1028213
http://www.securityfocus.com/bid/58233
BID 58233

- Metasploit Modules Related To CVE-2013-0340

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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