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CVE-2020-2119

CVE-2020-2119:
Client secret transmitted in plain text by Azure AD Plugin

3.1

CVSS Score
3.1

Basic Information

CVE ID
CVE-2020-2119
GHSA ID
GHSA-vvg2-hg3c-mqj3
EPSS Score
0.10408%
CWE
CWE-256
Published
5/24/2022
Updated
10/26/2023
KEV Status
No
Technology
TechnologyJava

Technical Details

CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Package NameEcosystemVulnerable VersionsFirst Patched Version
org.jenkins-ci.plugins:azure-admaven< 1.2.01.2.0

Vulnerability Intelligence
Miggo AIMiggo AI

Miggo AIRoot Cause Analysis

The vulnerability stems from the client secret being transmitted in plaintext during configuration form submissions. Jenkins plugins typically handle global configuration via a Descriptor/GlobalConfiguration class. The configure method in such classes processes form data. In pre-1.2.0 versions, the client secret would have been read directly from unencrypted request parameters (e.g., request.getParameter('clientSecret')) before being encrypted for disk storage. The patched version (1.2.0) likely introduced encryption before transmission, which implies the original function lacked this protection. The configure method is the logical point where plaintext transmission would occur, aligning with the CWE-256/CWE-522 descriptions.

Vulnerable functions

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

WAF Protection Rules

WAF Rule

*zur* ** Plu*in stor*s * *li*nt s**r*t in its *lo**l *on*i*ur*tion. W*il* t** *r***nti*l is stor** *n*rypt** on *isk, it is tr*nsmitt** in pl*in t*xt *s p*rt o* t** *on*i*ur*tion *orm *y *zur* ** Plu*in *.*.* *n* **rli*r. T*is **n r*sult in *xposur*

Reasoning

T** vuln*r**ility st*ms *rom t** *li*nt s**r*t **in* tr*nsmitt** in pl*int*xt *urin* *on*i*ur*tion *orm su*missions. J*nkins plu*ins typi**lly **n*l* *lo**l *on*i*ur*tion vi* * `**s*riptor`/`*lo**l*on*i*ur*tion` *l*ss. T** `*on*i*ur*` m*t*o* in su**