2020-10683 | Oracle Enterprise Manager Base Platform dom4j xml external entity reference

By Max On Jul 23, 2021

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9.4	$5k-$25k	0.24

A vulnerability classified as very critical has been found in Oracle Enterprise Manager Base Platform 13.4.0.0 (Software Management Software). Affected is an unknown function of the component dom4j. The manipulation with an unknown input leads to a xml external entity vulnerability. CWE is classifying the issue as CWE-611. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

dom4j before 2.0.3 and 2.1.x before 2.1.3 allows external DTDs and External Entities by default, which might enable XXE attacks. However, there is popular external documentation from OWASP showing how to enable the safe, non-default behavior in any application that uses dom4j.

The weakness was released 07/20/2021 as Oracle Critical Patch Update Advisory – July 2021. The advisory is available at oracle.com. This vulnerability is traded as CVE-2020-10683 since 03/20/2020. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn’t require any form of authentication. 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 07/23/2021).

As 0-day the estimated underground price was around $25k-$100k.

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

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