Wire-server vulnerable to Token Recipient Confusion resulting in account impersonation, deletion or malicious account creation

Wire is an encrypted communication and collaboration platform. Versions prior to 2022-07-12/Chart 4.19.0 are subject to Token Recipient Confusion. If an attacker has certain details of SAML IdP metadata, and configures their own SAML on the same backend, the attacker can delete all SAML authenticated accounts of a targeted team, Authenticate as a user of the attacked team and create arbitrary accounts in the context of the team if it is not managed by SCIM. This issue is fixed in wire-server 2022-07-12 and is already deployed on all Wire managed services. On-premise instances of wire-server need to be updated to 2022-07-12/Chart 4.19.0, so that their backends are no longer affected. As a workaround, the risk of an attack can be reduced by disabling SAML configuration for teams (galley.config.settings.featureFlags.sso). Helm overrides are located in `values/wire-server/values.yaml` Note that the ability to configure SAML SSO as a team is disabled by default for on-premise installations.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

认证机制不恰当

Wire 授权问题漏洞

Wire是德国Wire公司的一款聊天软件。该软件支持 Web、WindowsiOS、Android、OS X 平台，有群组功能，可以语音通话，发送照片以及其独创性的打招呼方式 PING。 Wire 4.19.0之前版本存在授权问题漏洞，该漏洞源于受到令牌接收者混淆的影响。攻击者利用该漏洞可以删除目标团队的所有 SAML 身份验证帐户，以被攻击团队的用户身份进行身份验证，并在合适的环境中创建任意帐户。

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