Antiy AVL ATool 1.0.0.22 Kernel Driver ssdt.sys memory corruption

Summaryinfo

A vulnerability was found in Antiy AVL ATool 1.0.0.22. It has been rated as critical. Affected is an unknown function in the library ssdt.sys of the component Kernel Driver. The manipulation leads to memory corruption. This vulnerability is listed as CVE-2018-20331. The attack must be carried out locally. There is no available exploit.

Detailsinfo

A vulnerability was found in Antiy AVL ATool 1.0.0.22. It has been rated as critical. This issue affects an unknown function in the library ssdt.sys of the component Kernel Driver. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Local attackers can trigger a Kernel Pool Buffer Overflow in Antiy AVL ATool v1.0.0.22. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the processing of IOCTL 0x80002004 by the ssdt.sys kernel driver. The bug is caused by failure to properly validate the length of the user-supplied data. An attacker can leverage this vulnerability to execute arbitrary code in the context of the kernel, which could lead to privilege escalation. A failed exploit could lead to denial of service.

The bug was discovered 12/22/2018. The weakness was presented 12/23/2018 (Website). It is possible to read the advisory at packetstormsecurity.com. The identification of this vulnerability is CVE-2018-20331 since 12/21/2018. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

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

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Productinfo

Vendor

• Antiy

Name

• AVL ATool

Version

• 1.0.0.22

CPE 2.3info

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CPE 2.2info

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