Opentext Documentum Webtop 6.8.0160.0073 GAIRConnector XML File xml external entity reference

Summaryinfo

A vulnerability was found in Opentext Documentum Webtop 6.8.0160.0073. It has been declared as critical. This impacts an unknown function of the file xda/com/documentum/ucf/server/transport/impl/GAIRConnector. Such manipulation as part of XML File leads to xml external entity reference. This vulnerability is traded as CVE-2017-14527. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Opentext Documentum Webtop 6.8.0160.0073 and classified as critical. Affected by this issue is some unknown processing of the file xda/com/documentum/ucf/server/transport/impl/GAIRConnector. The manipulation as part of a XML File 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, and availability. CVE summarizes:

Multiple XML external entity (XXE) vulnerabilities in the OpenText Documentum Webtop 6.8.0160.0073 allow remote authenticated users to list the contents of arbitrary directories, read arbitrary files, cause a denial of service, or, on Windows, obtain Documentum user hashes via a (1) crafted DTD, involving unspecified XML structures in a request to xda/com/documentum/ucf/server/transport/impl/GAIRConnector or crafted XML file in a MediaProfile file (2) import or (3) check in.

The bug was discovered 09/24/2017. The weakness was shared 09/28/2017 as not defined mailinglist post (Full-Disclosure). The advisory is shared for download at seclists.org. This vulnerability is handled as CVE-2017-14527 since 09/17/2017. The exploitation is known to be easy. The attack may be launched remotely. Required for exploitation is a simple authentication. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 3 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.

The entries VDB-107201, VDB-107202 and VDB-107203 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Opentext

Name

• Documentum Webtop

Version

• 6.8.0160.0073

License

• commercial

CPE 2.3info

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CPE 2.2info

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