HPSBGN03722 rev. 1 - HP Support Assistant Weak ACL and DLL Loading Vulnerability

Potential Security Impact:

Execution of arbitrary code.

Source: HP, HP Product Security Response Team (PSRT)

Reported by: Rémi ESCOURROU (@remiescourrou)

VULNERABILITY SUMMARY

A weak ACL may potentially allow an unauthorized person to load arbitrary code.

Reference Number

CVE-2020-28418, PSR-2021-0003

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.

Version 8.8.34.31 and lower of HP Support Assistant.

BACKGROUND

For a PGP signed version of this security bulletin please write to: hp-security-alert@hp.com

CVSS 3.1 Base Metrics

Reference	Base Vector	Base Score
CVE-2020-28418	CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L	5.0

RESOLUTION

A patch was released on March 10, 2021 that will automatically update HP Support Assistant clients during the weekly scan where it checks for updates. This patch is applied to any version of HP Support Assistant version 8.

To manually update HP Support Assistant to the latest version, use the following steps:

Open HP Support Assistant from the Start menu.
Click the My devices tab.
Select Check for updates and messages.
During this process, the impacted files are replaced and the old files are deleted. To confirm that the patched file is present, check the version of this file (%programfiles(x86)%\Hewlett-Packard\HP Support Framework\UninstallHPSA.exe). It should be version 8.11.1.0.

Third Party Security Patches: Third party security patches that are to be installed on systems running HP software products should be applied in accordance with the customer's patch management policy.

Support: For issues about implementing the recommendations of this Security Bulletin, visit https://www.hp.com/go/contacthp to learn about your HP support options.

Report: To report a potential security vulnerability with any HP supported product, send email to: hp-security-alert@hp.com.

Subscribe: To initiate a subscription to receive future HP Security Bulletin alerts via email, visit https://www.hp.com/go/alerts.

Security Bulletin Archive: To view released Security Bulletins, search the HP Support Site for "security bulletin".

Software Product Category: The Software Product Category is represented in the title by the two characters following HPSB.

PI	HP Printing and Imaging
HF	HP Hardware and Firmware
GN	HP General Software

It is strongly recommended that security related information being communicated to HP be encrypted using PGP, especially exploit information.

To get the security-alert PGP key, please send an e-mail message as follows:

To: hp-security-alert@hp.com

Subject: get key

System management and security procedures must be reviewed frequently to maintain system integrity. HP is continually reviewing and enhancing the security features of software products to provide customers with current secure solutions.

"HP is broadly distributing this Security Bulletin in order to bring to the attention of users of the affected HP products the important security information contained in this Bulletin. HP recommends that all users determine the applicability of this information to their individual situations and take appropriate action. HP does not warrant that this information is necessarily accurate or complete for all user situations and, consequently, HP will not be responsible for any damages resulting from user's use or disregard of the information provided in this Bulletin. To the extent permitted by law, HP disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose, title and non-infringement."

REVISION HISTORY : Version: 1 - 15 March 2021 Initial release.

SUPPORT COMMUNICATION- SECURITY BULLETIN

HPSBGN03722 rev. 1 - HP Support Assistant Weak ACL and DLL Loading Vulnerability

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