OpenWebif 1.2.5 ipkg.py IpkgController access control

Summaryinfo

A vulnerability marked as critical has been reported in OpenWebif 1.2.5. This impacts the function IpkgController of the file plugin/controllers/ipkg.py. The manipulation leads to access control. This vulnerability is referenced as CVE-2017-9333. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in OpenWebif 1.2.5. It has been rated as critical. This issue affects the function IpkgController of the file plugin/controllers/ipkg.py. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

OpenWebif 1.2.5 allows remote code execution via a URL to the CallOPKG function in the IpkgController class in plugin/controllers/ipkg.py, when the URL refers to an attacker-controlled web site with a Trojan horse package. This has security implications in cases where untrusted users can trigger CallOPKG calls, and these users can enter an arbitrary URL in an input field, even though that input field was only intended for a package name. This threat model may be relevant in the latest versions of third-party products that bundle OpenWebif, i.e., set-top box products. The issue of Trojan horse packages does NOT have security implications in cases where the attacker has full OpenWebif access.

The bug was discovered 05/31/2017. The weakness was published 09/18/2017 (Website). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2017-9333 since 05/31/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 109 days. During that time the estimated underground price was around $0-$5k.

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

Name

• OpenWebif

Version

• 1.2.5

CPE 2.3info

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CPE 2.2info

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