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CVE-2020-16971

CVE-2020-16971:
Azure SDK for Java Security Feature Bypass Vulnerability

7.4

CVSS Score

Basic Information

CVE ID
CVE-2020-16971
GHSA ID
GHSA-8q69-pw39-hpqh
EPSS Score
-
CWE
-
Published
5/24/2022
Updated
10/17/2024
KEV Status
No
Technology
TechnologyJava

Technical Details

CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Package NameEcosystemVulnerable VersionsFirst Patched Version
com.microsoft.azure:azure-eventhubsmaven< 3.2.13.2.1
com.azure:azure-core-amqpmaven< 1.6.01.6.0

Vulnerability Intelligence
Miggo AIMiggo AI

Miggo AIRoot Cause Analysis

The vulnerability stems from insufficient SSL/TLS validation in AMQP connections. The critical patch in azure-core-amqp 1.6.0 added peer certificate verification, indicating that previous versions lacked proper certificate validation in connection establishment logic. The ReactorConnection.createTransport method is central to AMQP transport creation and would be responsible for SSL configuration. The AmqpChannelProvider.getSslContext is implicated as the source of insecure SSL context creation prior to the patch. These functions would appear in stack traces during exploitation attempts involving insecure AMQP connections.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

WAF Protection Rules

WAF Rule

*zur* S*K *or J*v* S**urity ***tur* *yp*ss Vuln*r**ility

Reasoning

T** vuln*r**ility st*ms *rom insu**i*i*nt SSL/TLS v*li**tion in *MQP *onn**tions. T** *riti**l p*t** in *zur*-*or*-*mqp *.*.* ***** p**r **rti*i**t* v*ri*i**tion, in*i**tin* t**t pr*vious v*rsions l**k** prop*r **rti*i**t* v*li**tion in *onn**tion *s