Security Bulletin: PowerVC is impacted by an XSS vulnerability discovered in noVNC (CVE-2017-18635)

Summary

An XSS vulnerability was discovered in noVNC before 0.6.2 in which the remote VNC server could inject arbitrary HTML into the noVNC web page via the messages propagated to the status field, such as the VNC server name.

Vulnerability Details

CVEID:CVE-2017-18635
**DESCRIPTION:**noVNC is vulnerable to cross-site scripting, caused by improper validation of user-supplied input. A remote attacker could exploit this vulnerability using the messages propagated to the status field to inject malicious script into a Web page which would be executed in a victim’s Web browser within the security context of the hosting Web site, once the page is viewed. An attacker could use this vulnerability to steal the victim’s cookie-based authentication credentials.
CVSS Base score: 6.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/170236 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

Affected Products and Versions

Remediation/Fixes

IBM PowerVC Standard

and

IBM Cloud PowerVC Manager

| 1.4.2| IT32104| https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm%7EOther%20software&product=ibm/Other+software/PowerVC&release=1.4.2.1&platform=All&function=textSearch&text=APAR+IT32104_IT32106

IBM PowerVC Standard

and

IBM Cloud PowerVC Manager

| 1.4.3| IT32104| https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm%7EOther%20software&product=ibm/Other+software/PowerVC&release=1.4.3.1&platform=All&function=textSearch&text=APAR+IT32104_IT32106

Workarounds and Mitigations

None