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CVE-2020-2108: XXE vulnerability in Jenkins WebSphere Deployer Plugin

7.6

CVSS Score
3.0

Basic Information

EPSS Score
0.18812%
Published
5/24/2022
Updated
1/28/2023
KEV Status
No
Technology
TechnologyJava

Technical Details

CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
Package NameEcosystemVulnerable VersionsFirst Patched Version
org.jenkins-ci.plugins:websphere-deployermaven<= 1.6.1

Vulnerability Intelligence
Miggo AIMiggo AI

Miggo AIRoot Cause Analysis

The vulnerability stems from insecure XML parsing of ibm-web-ext.xml during WAR file processing. While the exact function name isn't provided in advisories, the plugin's purpose (WebSphere deployment) and CWE-611 context imply a missing secure configuration in the XML parser initialization. Java's default XML parsers (e.g., DocumentBuilderFactory) are vulnerable unless explicitly hardened. The high confidence comes from the explicit advisory statement about missing XXE protections in the parser configuration.

Vulnerable functions

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

WAF Protection Rules

WAF Rule

W**Sp**r* **ploy*r Plu*in *.*.* *n* **rli*r *o*s not *on*i*ur* t** XML p*rs*r to pr*v*nt XML *xt*rn*l *ntity (XX*) *tt**ks. T*is *oul* ** *xploit** *y * us*r wit* Jo*/*on*i*ur* p*rmissions to uplo** * sp**i*lly *r**t** w*r *il* *ont*inin* * `W**-IN*/

Reasoning

T** vuln*r**ility st*ms *rom ins**ur* XML p*rsin* o* `i*m-w**-*xt.xml` *urin* W*R *il* pro**ssin*. W*il* t** *x**t *un*tion n*m* isn't provi*** in **visori*s, t** plu*in's purpos* (W**Sp**r* **ploym*nt) *n* *W*-*** *ont*xt imply * missin* s**ur* *on*