Sophos XG Firewall 17.0.8 MR-8 API Configuration APIController X-Forwarded-for os command injection

Summaryinfo

A vulnerability classified as critical was found in Sophos XG Firewall 17.0.8 MR-8. The affected element is an unknown function of the file /webconsole/APIController of the component API Configuration. Executing a manipulation of the argument X-Forwarded-for as part of HTTP Header can lead to os command injection. This vulnerability is registered as CVE-2018-16118. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Sophos XG Firewall 17.0.8 MR-8 (Firewall Software). It has been declared as critical. This vulnerability affects an unknown function of the file /webconsole/APIController of the component API Configuration. The manipulation of the argument X-Forwarded-for as part of a HTTP Header leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A shell escape vulnerability in /webconsole/APIController in the API Configuration component of Sophos XG firewall 17.0.8 MR-8 allows remote attackers to execute arbitrary OS commands via shell metachracters in the "X-Forwarded-for" HTTP header.

The weakness was published 06/20/2019 (Website). The advisory is shared for download at community.sophos.com. This vulnerability was named CVE-2018-16118 since 08/29/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1202.

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

Similar entries are available at VDB-136778 and VDB-136779. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Firewall Software

Vendor

• Sophos

Name

• XG Firewall

Version

• 17.0.8 MR-8

License

• commercial

Website

• Vendor: https://www.sophos.com/

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Once again VulDB remains the best source for vulnerability data.

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