#VU80608 Cross-site scripting in MyConnection Server - CVE-2023-42034
Vulnerability identifier: #VU80608
Vulnerability risk: Low
CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]
CVE-ID: CVE-2023-42034
CWE-ID:
CWE-79
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
MyConnection Server
Server applications /
Other server solutions
Vendor: Visualware
Description
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data within the doRTAAccessCTConfig method. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
MyConnection Server: 11.3c
External links
https://www.zerodayinitiative.com/advisories/ZDI-23-1399/
https://myconnectionserver.visualware.com/support/security-advisories
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
