Vulnerability identifier: #VU58198

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-40690

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache Santuario XML Security for Java
Universal components / Libraries / Libraries used by multiple products

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to an issue where the "secureValidation" property is not passed correctly when creating a KeyInfo from a KeyInfoReference element. A remote attacker can abuse an XPath Transform to extract any local .xml files in a RetrievalMethod element.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Santuario XML Security for Java: 2.2.0 - 2.2.2, 2.1.0 - 2.1.6

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External links
http://lists.apache.org/thread.html/r8848751b6a5dd78cc9e99d627e74fecfaffdfa1bb615dce827aad633%40%3Cdev.santuario.apache.org%3E
http://lists.apache.org/thread.html/rbdac116aef912b563da54f4c152222c0754e32fb2f785519ac5e059f@%3Ccommits.tomee.apache.org%3E
http://lists.apache.org/thread.html/re294cfc61f509512874ea514d8d64fd276253d54ac378ffa7a4880c8@%3Ccommits.tomee.apache.org%3E
http://lists.apache.org/thread.html/r9c100d53c84d54cf71975e3f0cfcc2856a8846554a04c99390156ce4@%3Ccommits.tomee.apache.org%3E
http://lists.apache.org/thread.html/r3b3f5ba9b0de8c9c125077b71af06026d344a709a8ba67db81ee9faa@%3Ccommits.tomee.apache.org%3E
http://lists.apache.org/thread.html/r8a5c0ce9014bd07303aec1e5eed55951704878016465d3dae00e0c28@%3Ccommits.tomee.apache.org%3E
http://lists.apache.org/thread.html/raf352f95c19c0c4051af3180752cb69acbea88d0d066ab176c6170e8@%3Cuser.poi.apache.org%3E
http://lists.debian.org/debian-lts-announce/2021/09/msg00015.html
http://lists.apache.org/thread.html/r401ecb7274794f040cd757b259ebe3e8c463ae74f7961209ccad3c59@%3Cissues.cxf.apache.org%3E
http://lists.apache.org/thread.html/rbbbac0759b12472abd0c278d32b5e0867bb21934df8e14e5e641597c@%3Ccommits.tomee.apache.org%3E

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.