Cisco Advanced Malware Protection CSCve34034 on Mac Type Detection DMG File input validation

Summaryinfo

A vulnerability described as critical has been identified in Cisco Advanced Malware Protection CSCve34034 on Mac. The affected element is an unknown function of the component Type Detection. Such manipulation as part of DMG File leads to input validation. This vulnerability is referenced as CVE-2018-0237. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Cisco Advanced Malware Protection CSCve34034 on Mac (Anti-Malware Software) and classified as critical. Affected by this issue is an unknown code block of the component Type Detection. The manipulation as part of a DMG File 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. CVE summarizes:

A vulnerability in the file type detection mechanism of the Cisco Advanced Malware Protection (AMP) for Endpoints macOS Connector could allow an unauthenticated, remote attacker to bypass malware detection. The vulnerability occurs because the software relies on only the file extension for detecting DMG files. An attacker could exploit this vulnerability by sending a DMG file with a nonstandard extension to a device that is running an affected AMP for Endpoints macOS Connector. An exploit could allow the attacker to bypass configured malware detection. Cisco Bug IDs: CSCve34034.

The bug was discovered 04/18/2018. The weakness was published 04/19/2018 as cisco-sa-20180418-amp as confirmed advisory (Website). The advisory is available at tools.cisco.com. This vulnerability is handled as CVE-2018-0237 since 11/27/2017. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 01/29/2020).

The vulnerability was handled as a non-public zero-day exploit for at least 1 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.

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Productinfo

Type

• Anti-Malware Software

Vendor

• Cisco

Name

• Advanced Malware Protection

Version

• CSCve34034

License

• commercial

Website

• Vendor: https://www.cisco.com/

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