Vulnerability Details : CVE-2017-3206
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.
Vulnerability category: XML external entity (XXE) injectionServer-side request forgery (SSRF) Denial of service
Products affected by CVE-2017-3206
- cpe:2.3:a:exadel:flamingo:2.2.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-3206
0.40%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 73 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-3206
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2017-3206
-
The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.Assigned by:
- cret@cert.org (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2017-3206
-
https://codewhitesec.blogspot.com/2017/04/amf.html
code white | Blog: AMF – Another Malicious FormatExploit;Third Party Advisory
-
http://www.securityweek.com/flaws-java-amf-libraries-allow-remote-code-execution
Flaws in Java AMF Libraries Allow Remote Code Execution | SecurityWeek.ComThird Party Advisory
-
http://www.securityfocus.com/bid/97380
Exadel Flamingo Multiple Remote Code Execution and XML External Entity Injection VulnerabilitiesThird Party Advisory;VDB Entry
-
https://www.kb.cert.org/vuls/id/307983
VU#307983 - Action Message Format (AMF3) Java implementations are vulnerable to insecure deserialization and XML external entities referencesThird Party Advisory;US Government Resource
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