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Vulnerability of crewjam/saml: privilege escalation via XML Round-Trip Unpreserved Semantics

Synthesis of the vulnerability 

An attacker can bypass restrictions via XML Round-Trip Unpreserved Semantics of crewjam/saml, in order to escalate his privileges.
Vulnerable systems: Fedora, Grafana, Unix (platform) ~ not comprehensive.
Severity of this threat: 2/4.
Creation date: 05/01/2021.
Références of this weakness: 29875, CVE-2020-27846, FEDORA-2020-64e54abd9f, FEDORA-2020-968067abfa, VIGILANCE-VUL-34238.

Description of the vulnerability 

An attacker can bypass restrictions via XML Round-Trip Unpreserved Semantics of ...
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This weakness note impacts software or systems such as Fedora, Grafana, Unix (platform) ~ not comprehensive.

Our Vigil@nce team determined that the severity of this threat note is medium.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this computer weakness.

Solutions for this threat 

Fixes for this vulnerability are not yet public.
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