Описание
Misinterpretation of malicious XML input
Impact
xmldom versions 0.6.0 and older do not correctly escape special characters when serializing elements removed from their ancestor. This may lead to unexpected syntactic changes during XML processing in some downstream applications.
Patches
Update to one of the fixed versions of @xmldom/xmldom (>=0.7.0)
See issue #271 for the status of publishing xmldom to npm or join #270 for Q&A/discussion until it's resolved.
Workarounds
Downstream applications can validate the input and reject the maliciously crafted documents.
References
Similar to this one reported on the Go standard library:
- https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/
- https://mattermost.com/blog/securing-xml-implementations-across-the-web/
For more information
If you have any questions or comments about this advisory:
- Open an issue in
xmldom/xmldom - Email us: send an email to all addresses that are shown by
npm owner ls @xmldom/xmldom
Ссылки
- https://github.com/xmldom/xmldom/security/advisories/GHSA-5fg8-2547-mr8q
- https://nvd.nist.gov/vuln/detail/CVE-2021-32796
- https://github.com/xmldom/xmldom/commit/7b4b743917a892d407356e055b296dcd6d107e8b
- https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities
- https://mattermost.com/blog/securing-xml-implementations-across-the-web
- https://www.npmjs.com/package/@xmldom/xmldom
Пакеты
xmldom
<= 0.6.0
Отсутствует
@xmldom/xmldom
< 0.7.0
0.7.0
Связанные уязвимости
xmldom is an open source pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. xmldom versions 0.6.0 and older do not correctly escape special characters when serializing elements removed from their ancestor. This may lead to unexpected syntactic changes during XML processing in some downstream applications. This issue has been resolved in version 0.7.0. As a workaround downstream applications can validate the input and reject the maliciously crafted documents.
xmldom is an open source pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. xmldom versions 0.6.0 and older do not correctly escape special characters when serializing elements removed from their ancestor. This may lead to unexpected syntactic changes during XML processing in some downstream applications. This issue has been resolved in version 0.7.0. As a workaround downstream applications can validate the input and reject the maliciously crafted documents.
xmldom is an open source pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. xmldom versions 0.6.0 and older do not correctly escape special characters when serializing elements removed from their ancestor. This may lead to unexpected syntactic changes during XML processing in some downstream applications. This issue has been resolved in version 0.7.0. As a workaround downstream applications can validate the input and reject the maliciously crafted documents.
xmldom is an open source pure JavaScript W3C standard-based (XML DOM L ...
Уязвимость реализации XML DOM XMLDOM, связанная с недостатком механизма кодирование или экранирование выходных данных, позволяющая нарушителю оказать воздействие на целостность данных