CVE-2019-9670

Synacor Zimbra Collaboration (ZCS) Improper Restriction of XML External Entity Reference

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

Yes

*KEV

Decision

*SSVC

Descriptions

mailboxd component in Synacor Zimbra Collaboration Suite 8.7.x before 8.7.11p10 has an XML External Entity injection (XXE) vulnerability, as demonstrated by Autodiscover/Autodiscover.xml.

El componente mailboxd en Synacor Zimbra Collaboration Suite 8.7.x antes de 8.7.11p10 tiene una vulnerabilidad de inyección de entidad externa XML (XXE), como lo demuestra Autodiscover/Autodiscover.xml

Improper Restriction of XML External Entity Reference vulnerability affecting Synacor Zimbra Collaboration (ZCS).

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-03-11 CVE Reserved
2019-04-11 CVE Published
2022-01-10 Exploited in Wild
2022-07-10 KEV Due Date
2024-05-05 First Exploit
2024-08-04 CVE Updated
2024-10-19 EPSS Updated

CWE

CWE-611: Improper Restriction of XML External Entity Reference

CAPEC

References (9)

URL	Tag	Source
http://www.rapid7.com/db/modules/exploit/linux/http/zimbra_xxe_rce	Third Party Advisory
https://blog.tint0.com/2019/03/a-saga-of-code-executions-on-zimbra.html

URL	Date	SRC
https://www.exploit-db.com/exploits/46693	2024-08-04
https://github.com/Cappricio-Securities/CVE-2019-9670	2024-05-21
https://github.com/OracleNep/CVE-2019-9670-DtdFilegeneration	2024-05-05
http://packetstormsecurity.com/files/152487/Zimbra-Collaboration-Autodiscover-Servlet-XXE-ProxyServlet-SSRF.html	2024-08-04
https://isc.sans.edu/forums/diary/CVE20199670+Zimbra+Collaboration+Suite+XXE+vulnerability/27570	2024-08-04

URL	Date	SRC
https://bugzilla.zimbra.com/show_bug.cgi?id=109129	2024-07-24

URL	Date	SRC
https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories	2024-07-24

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Synacor Search vendor "Synacor"		Zimbra Collaboration Suite Search vendor "Synacor" for product "Zimbra Collaboration Suite"				>= 8.7.0 < 8.7.11 Search vendor "Synacor" for product "Zimbra Collaboration Suite" and version " >= 8.7.0 < 8.7.11"		-		Affected
Synacor Search vendor "Synacor"		Zimbra Collaboration Suite Search vendor "Synacor" for product "Zimbra Collaboration Suite"				8.7.11 Search vendor "Synacor" for product "Zimbra Collaboration Suite" and version "8.7.11"		-		Affected
Synacor Search vendor "Synacor"		Zimbra Collaboration Suite Search vendor "Synacor" for product "Zimbra Collaboration Suite"				8.7.11 Search vendor "Synacor" for product "Zimbra Collaboration Suite" and version "8.7.11"		p1		Affected
Synacor Search vendor "Synacor"		Zimbra Collaboration Suite Search vendor "Synacor" for product "Zimbra Collaboration Suite"				8.7.11 Search vendor "Synacor" for product "Zimbra Collaboration Suite" and version "8.7.11"		p2		Affected
Synacor Search vendor "Synacor"		Zimbra Collaboration Suite Search vendor "Synacor" for product "Zimbra Collaboration Suite"				8.7.11 Search vendor "Synacor" for product "Zimbra Collaboration Suite" and version "8.7.11"		p3		Affected
Synacor Search vendor "Synacor"		Zimbra Collaboration Suite Search vendor "Synacor" for product "Zimbra Collaboration Suite"				8.7.11 Search vendor "Synacor" for product "Zimbra Collaboration Suite" and version "8.7.11"		p4		Affected
Synacor Search vendor "Synacor"		Zimbra Collaboration Suite Search vendor "Synacor" for product "Zimbra Collaboration Suite"				8.7.11 Search vendor "Synacor" for product "Zimbra Collaboration Suite" and version "8.7.11"		p5		Affected
Synacor Search vendor "Synacor"		Zimbra Collaboration Suite Search vendor "Synacor" for product "Zimbra Collaboration Suite"				8.7.11 Search vendor "Synacor" for product "Zimbra Collaboration Suite" and version "8.7.11"		p6		Affected
Synacor Search vendor "Synacor"		Zimbra Collaboration Suite Search vendor "Synacor" for product "Zimbra Collaboration Suite"				8.7.11 Search vendor "Synacor" for product "Zimbra Collaboration Suite" and version "8.7.11"		p7		Affected
Synacor Search vendor "Synacor"		Zimbra Collaboration Suite Search vendor "Synacor" for product "Zimbra Collaboration Suite"				8.7.11 Search vendor "Synacor" for product "Zimbra Collaboration Suite" and version "8.7.11"		p8		Affected
Synacor Search vendor "Synacor"		Zimbra Collaboration Suite Search vendor "Synacor" for product "Zimbra Collaboration Suite"				8.7.11 Search vendor "Synacor" for product "Zimbra Collaboration Suite" and version "8.7.11"		p9		Affected