Vulnerability · Published May 3, 2024 · Assigned by zdi

CVE-2023-42033Visualware MyConnection Server doPostUploadfiles Directory Traversal Remote Code Execution Vulnerability

High 7.2

In plain English

A high-severity path traversal 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 3.3% (higher than 88% of all known vulnerabilities).

Severity (CVSS 3.0)7.2High

Exploit odds (30 days)3.3%top 11.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Visualware MyConnection Server doPostUploadfiles Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Visualware MyConnection Server. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the doPostUploadfiles method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21612.

Affected products (as reported)

Vendor	Product	Versions
Visualware	MyConnection Server	11.3c

Weakness: CWE-22 · Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References

ZDI-23-1396 x_research-advisory
vendor-provided URL vendor-advisory