CVE-2023-42035

Visualware MyConnection Server doIForward XML External Entity Processing Information Disclosure Vulnerability

Severity Score

6.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

Visualware MyConnection Server doIForward XML External Entity Processing Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Visualware MyConnection Server. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the doIForward method. Due to the improper restriction of XML External Entity (XXE) references, a crafted document specifying a URI causes the XML parser to access the URI and embed the contents back into the XML document for further processing. An attacker can leverage this vulnerability to disclose information in the context of root. Was ZDI-CAN-21774.

Vulnerabilidad de divulgación de información de procesamiento de entidades externas XML doIForward de Visualware MyConnection Server. Esta vulnerabilidad permite a atacantes remotos revelar información confidencial sobre las instalaciones afectadas de Visualware MyConnection Server. No se requiere autenticación para aprovechar esta vulnerabilidad. El defecto específico existe en el método doIForward. Debido a la restricción inadecuada de las referencias a entidades externas XML (XXE), un documento elaborado que especifica un URI hace que el analizador XML acceda al URI e incruste el contenido nuevamente en el documento XML para su posterior procesamiento. Un atacante puede aprovechar esta vulnerabilidad para revelar información en el contexto de la raíz. Era ZDI-CAN-21774.

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Visualware MyConnection Server. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the doIForward method. Due to the improper restriction of XML External Entity (XXE) references, a crafted document specifying a URI causes the XML parser to access the URI and embed the contents back into the XML document for further processing. An attacker can leverage this vulnerability to disclose information in the context of root.

*Credits: 06fe5fd2bc53027c4a3b7e395af0b850e7b8a044

CVSS Scores

ZDIv3 6.5

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

Low

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-09-06 CVE Reserved
2023-09-08 CVE Published
2024-05-03 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-611: Improper Restriction of XML External Entity Reference

CAPEC

References (2)

URL	Tag	Source
https://www.zerodayinitiative.com/advisories/ZDI-23-1397	X_research Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://myconnectionserver.visualware.com/support/security-advisories	2024-05-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Visualware Search vendor "Visualware"		MyConnection Server Search vendor "Visualware" for product "MyConnection Server"				11.3 Search vendor "Visualware" for product "MyConnection Server" and version "11.3"		en		Affected