CVE-2020-2304

jenkins-2-plugins/subversion: XML parser is not preventing XML external entity (XXE) attacks

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Jenkins Subversion Plugin 2.13.1 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

Jenkins Subversion Plugin versiones 2.13.1 y anteriores, no configura su analizador XML para impedir ataques de tipo XML external entity (XXE)

A flaw was found in the subversion Jenkins plugin. The XML parser is not properly configured to prevent XML external entity (XXE) attacks allowing an attacker the ability to control an agent process and have Jenkins parse a crafted changelog file that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery. The highest threat from this vulnerability is to data confidentiality.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-12-05 CVE Reserved
2020-11-04 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-611: Improper Restriction of XML External Entity Reference

CAPEC

References (4)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2020/11/04/6	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-2145	2023-10-25
https://access.redhat.com/security/cve/CVE-2020-2304	2021-03-03
https://bugzilla.redhat.com/show_bug.cgi?id=1895939	2021-03-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Jenkins Search vendor "Jenkins"		Subversion Search vendor "Jenkins" for product "Subversion"				<= 2.13.1 Search vendor "Jenkins" for product "Subversion" and version " <= 2.13.1"		jenkins		Affected