K7 Total Security up to 15.1 input validation

Summaryinfo

A vulnerability classified as critical has been found in K7 Total Security up to 15.1. Affected is an unknown function. The manipulation leads to input validation. This vulnerability is documented as CVE-2017-18019. The attack needs to be performed locally. Additionally, an exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in K7 Total Security up to 15.1. This issue affects some unknown processing. 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:

In K7 Total Security before 15.1.0.305, user-controlled input to the K7Sentry device is not sufficiently sanitized: the user-controlled input can be used to compare an arbitrary memory address with a fixed value, which in turn can be used to read the contents of arbitrary memory. Similarly, the product crashes upon a \\.\K7Sentry DeviceIoControl call with an invalid kernel pointer.

The bug was discovered 10/23/2017. The weakness was released 01/04/2018 (Website). The advisory is shared at blogs.securiteam.com. The identification of this vulnerability is CVE-2017-18019 since 01/03/2018. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 72 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 15.1.0.305 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (44046). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• K7

Name

• Total Security

Version

• 15.0
• 15.1

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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