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Vulnerability Details : CVE-2017-12621

During Jelly (xml) file parsing with Apache Xerces, if a custom doctype entity is declared with a "SYSTEM" entity with a URL and that entity is used in the body of the Jelly file, during parser instantiation the parser will attempt to connect to said URL. This could lead to XML External Entity (XXE) attacks in Apache Commons Jelly before 1.0.1.
Publish Date : 2017-09-27 Last Update Date : 2017-10-10
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- CVSS Scores & Vulnerability Types

CVSS Score
7.5
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 Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 611

- Products Affected By CVE-2017-12621

# Product Type Vendor Product Version Update Edition Language
1 Application Apache Commons-jelly 1.0.1 RC6 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Apache Commons-jelly 1

- References For CVE-2017-12621

https://lists.apache.org/thread.html/[email protected]%3Cdev.commons.apache.org%3E
MLIST [dev] 20170927 [SECURITY] CVE-2017-12621 Apache Commons Jelly connects to URL with custom doctype definitions.
http://www.securityfocus.com/bid/101052
BID 101052 Apache Commons Jelly CVE-2017-12621 Security Bypass Vulnerability Release Date:2017-09-25
http://www.securitytracker.com/id/1039444
SECTRACK 1039444
https://issues.apache.org/jira/browse/JELLY-293 CONFIRM

- Metasploit Modules Related To CVE-2017-12621

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


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