PT-2018-7253 · Flamingo · Flamingo Amf-Serializer

Published 2018-06-11 · Updated 2019-10-09 · CVE-2017-3206

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Flamingo amf-serializer version 2.2.0

Description: The Java implementation of AMF3 deserializers in Flamingo amf-serializer allows external entity references (XXEs) from XML documents embedded within AMF3 messages. This could potentially expose sensitive data on the server, cause denial of service, or enable server-side request forgery if the XML parsing is handled incorrectly.

Recommendations: For version 2.2.0, consider disabling the AMF3 deserializer until a patch is available to prevent potential exploitation. Restrict access to sensitive data on the server and monitor for signs of denial of service or server-side request forgery.

Exploit

Fix

XXE

Weakness Enumeration

CWE-611

Related Identifiers

CVE-2017-3206

Affected Products

Flamingo Amf-Serializer

References · 6

• 🔥 https://codewhitesec.blogspot.com/2017/04/amf.html · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2017-3206 · Security Note
• https://osv.dev/vulnerability/CVE-2017-3206 · Vendor Advisory
• http://securityweek.com/flaws-java-amf-libraries-allow-remote-code-execution · Note
• http://securityfocus.com/bid/97380 · Note
• https://kb.cert.org/vuls/id/307983 · Note