Summaryinfo

A vulnerability was found in IBM App Connect, Integration Bus and WebSphere Message Broker. It has been classified as critical. Affected is an unknown function of the component XML Data Handler. The manipulation leads to xml external entity reference. This vulnerability is traded as CVE-2018-1801. It is possible to launch the attack remotely. There is no exploit available. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Detailsinfo

A vulnerability was found in IBM App Connect, Integration Bus and WebSphere Message Broker (Application Server Software) (version now known) and classified as critical. This issue affects some unknown processing of the component XML Data Handler. The manipulation with an unknown input leads to a xml external entity reference vulnerability. Using CWE to declare the problem leads to CWE-611. The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

IBM App Connect V11.0.0.0 through V11.0.0.1, IBM Integration Bus V10.0.0.0 through V10.0.0.13, IBM Integration Bus V9.0.0.0 through V9.0.0.10, and WebSphere Message Broker V8.0.0.0 through V8.0.0.9 is vulnerable to a XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to consume memory resources. IBM X-Force ID: 149639.

The bug was discovered 01/28/2019. The weakness was released 02/04/2019 (Website). It is possible to read the advisory at exchange.xforce.ibmcloud.com. The identification of this vulnerability is CVE-2018-1801 since 12/13/2017. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/04/2023).

The vulnerability was handled as a non-public zero-day exploit for at least 7 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.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Application Server Software

Vendor

• IBM

Name

• App Connect
• Integration Bus
• WebSphere Message Broker

License

• commercial

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