CVE-2017-3206 - Improper Restriction of XML External Entity Reference

Severity

75%

Complexity

99%

Confidentiality

106%

The Java implementation of AMF3 deserializers used by Flamingo amf-serializer by Exadel, version 2.2.0, allows external entity references (XXEs) from XML documents embedded within AMF3 messages. If the XML parsing is handled incorrectly it could potentially expose sensitive data on the server, denial of service, or server side request forgery.

The Java implementation of AMF3 deserializers used by Flamingo amf-serializer by Exadel, version 2.2.0, allows external entity references (XXEs) from XML documents embedded within AMF3 messages. If the XML parsing is handled incorrectly it could potentially expose sensitive data on the server, denial of service, or server side request forgery.

CVSS 3.0 Base Score 9.8. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P).

Overview

First reported 6 years ago

2018-06-11 17:29:00

Last updated 5 years ago

2019-10-09 23:27:00

Affected Software

Exadel Flamingo 2.2.0

2.2.0

References

97380

Third Party Advisory, VDB Entry

http://www.securityweek.com/flaws-java-amf-libraries-allow-remote-code-execution

Third Party Advisory

https://codewhitesec.blogspot.com/2017/04/amf.html

Exploit, Third Party Advisory

VU#307983

Third Party Advisory, US Government Resource

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