Vulnerability Details : CVE-2017-3202
The Java implementation of AMF3 deserializers used in Flamingo amf-serializer by Exadel, version 2.2.0, may allow instantiation of arbitrary classes via their public parameter-less constructor and subsequently call arbitrary Java Beans setter methods. The ability to exploit this vulnerability depends on the availability of classes in the class path that make use of deserialization. A remote attacker with the ability to spoof or control information may be able to send serialized Java objects with pre-set properties that result in arbitrary code execution when deserialized.
Products affected by CVE-2017-3202
- cpe:2.3:a:exadel:flamingo:2.2.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-3202
3.86%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 92 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-3202
| 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-2017-3202
-
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.Assigned by: nvd@nist.gov (Primary)
-
The product does not properly restrict reading from or writing to dynamically-managed code resources such as variables, objects, classes, attributes, functions, or executable instructions or statements.Assigned by: cret@cert.org (Secondary)
References for CVE-2017-3202
-
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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