Related Vulnerabilities: CVE-2019-6323 CVE-2019-6325 CVE-2019-6326 CVE-2019-6327 CVE-2019-6324

HP has identified potential security vulnerabilities with certain HP printers. The vulnerabilities could be exploited to perform Cross-site scripting (XSS), Cross-site request forgery (CSRF), or Buffer overflow attacks.

Source

Potential Security Impact:

XSS, CSRF, Potential Buffer Overflow

Reported by: Mario Rivas and Daniel Romero, NCC Group

VULNERABILITY SUMMARY

Reference Number

CVE-2019-6323, CVE-2019 -6324, CVE-2019-6325, CVE-2019-6326, CVE-2019-6327, PSR-2019-0034

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.

Please refer to the RESOLUTION below for a list of potentially impacted products.

BACKGROUND

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

Reference	Base vector	Base score
CVE-2019-6323	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N	6.1
CVE-2019-6324	CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N	5.5
CVE-2019-6325	CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:H	6.8
CVE-2019-6326	CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L	6.7
CVE-2019-6327	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L	5.3

Information on CVSS is documented in HP Customer Notice: HPSN2008002.

RESOLUTION

Update firmware for impacted printers as indicated in the table below. To obtain the updated firmware, follow these steps:

note:
All product versions prior to the firmware versions listed are impacted.

Go to Software and Drivers Downloads, and then click Printer.
Type your printer model name, and then select the name of your printer in the list.
Select Firmware from the list of categories.
Click Download next to the firmware update, and then follow the on-screen prompts to finish the update.

Printer name	Model numbers	Firmware revision
HP Color LaserJet Pro M280-M281 Multifunction Printer series	T6B80A, T6B83A, T6B81A, T6B82A	20190419
HP LaserJet Pro MFP M28-M31 Printer series	W2G54A, W2G55A, Y5S53A, Y5S55A, Y5S50A, Y5S54A	20190426

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: 28 May 2019 Initial release. Version 2: 3 June 2019 Updated Reported By.

SUPPORT COMMUNICATION- SECURITY BULLETIN HPSBPI03619 rev. 2 - Certain HP LaserJet Pro and MFP Printers, Multiple Potential Security Vulnerabilities

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