Vulnerability · Published May 3, 2024 · Assigned by zdi

CVE-2023-42035Visualware MyConnection Server doIForward XML External Entity Processing Information Disclosure Vulnerability

Medium 6.5

In plain English

A medium-severity XML external entity in MyConnection Server from Visualware. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 69% of all known vulnerabilities).

Severity (CVSS 3.0)6.5Medium

Exploit odds (30 days)1.2%top 30.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Visualware	MyConnection Server	11.3c

Weakness: CWE-611 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

References

ZDI-23-1397 x_research-advisory
vendor-provided URL vendor-advisory