HP LaserJet/OfficeJet Signature Validation input validation

Summaryinfo

A vulnerability was found in HP LaserJet and OfficeJet. It has been classified as critical. This affects an unknown part of the component Signature Validation. The manipulation leads to input validation. This vulnerability is referenced as CVE-2019-6318. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in HP LaserJet and OfficeJet (unknown version). This issue affects an unknown code block of the component Signature Validation. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

HP LaserJet Enterprise printers, HP PageWide Enterprise printers, HP LaserJet Managed printers, HP Officejet Enterprise printers have an insufficient solution bundle signature validation that potentially allows execution of arbitrary code.

The bug was discovered 03/14/2019. The weakness was published 04/11/2019 (Website). It is possible to read the advisory at support.hp.com. The identification of this vulnerability is CVE-2019-6318 since 01/15/2019. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 05/29/2020).

The vulnerability was handled as a non-public zero-day exploit for at least 28 days. During that time the estimated underground price was around $5k-$25k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• HP

Name

• LaserJet
• OfficeJet

License

• commercial

Website

• Vendor: https://www.hp.com/

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CPE 2.2info

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