Backdoor.Win32.Whgrx HTTP Host Header wsocx.dll buffer overflow

Summaryinfo

A vulnerability has been found in Backdoor.Win32.Whgrx and classified as critical. Affected by this issue is some unknown functionality in the library wsocx.dll of the component HTTP Host Header Handler. The manipulation leads to buffer overflow. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Backdoor.Win32.Whgrx (Remote Access Software) (the affected version unknown). This issue affects an unknown part in the library wsocx.dll of the component HTTP Host Header Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability.

The weakness was shared 01/17/2021 as MVID-2021-0030. It is possible to read the advisory at malvuln.com. Technical details as well as a public exploit are known.

The exploit is available at malvuln.com. It is declared as proof-of-concept.

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

Type

• Remote Access Software

Name

• Backdoor.Win32.Whgrx

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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CVSSv3info

CVSSv2info

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Threat Intelligenceinfo

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Submitinfo

Accepted

• Submit #6104: Backdoor.Win32.Whgrx / Remote Host Header Stack Buffer Overflow (by malvuln)

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

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