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CVE-2017-12621

Good to know:

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Date: September 27, 2017

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.

Language: Java

Severity Score

Related Resources (10)

http://www.securitytracker.com/id/1039444
https://lists.apache.org/thread.html/f1fc3f2c45264af44ce782d54b5908ac95f02bf7ad88bb57bfb04b73@%3Cdev.commons.apache.org%3E
https://web.archive.org/web/20210303081618/http://www.securitytracker.com/id/1039444
https://github.com/apache/commons-jelly
https://nvd.nist.gov/vuln/detail/CVE-2017-12621
https://issues.apache.org/jira/browse/JELLY-293
https://web.archive.org/web/20200227144849/http://www.securityfocus.com/bid/101052
https://lists.apache.org/thread.html/f1fc3f2c45264af44ce782d54b5908ac95f02bf7ad88bb57bfb04b73%40%3Cdev.commons.apache.org%3E
http://www.securityfocus.com/bid/101052
https://www.mend.io/vulnerability-database/CVE-2017-12621

Severity Score

Weakness Type (CWE)

Improper Restriction of XML External Entity Reference ('XXE')

CWE-611

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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