CyberRota Analysis
AI-GeneratedWarpgate versions prior to 0.27.6 are vulnerable to content spoofing due to improper handling of user-controlled redirect parameters in the SSO return path, allowing attackers to inject malicious markup. Although the impact is limited to content spoofing and does not enable script execution, it can lead to misleading login forms or unauthorized redirects if an attacker controls the identity provider or user claims. Organizations using Warpgate for SSH, HTTPS, or MySQL access should prioritize upgrading to version 0.27.6 to mitigate this vulnerability.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
Warpgate is an open source SSH, HTTPS and MySQL bastion host for Linux. Prior to 0.27.6, the response_mode=form_post SSO return path in warpgate-protocol-http/src/api/sso_provider_list.rs uses serde_json::to_string inside ReturnToSsoPostResponse without neutralizing a script-closing sequence. The vulnerable value can enter the script block through the attacker-controlled next redirect parameter stored by warpgate-protocol-http/src/api/sso_provider_detail.rs or through IdP-derived error messages that make_redirect_url concatenates without URL encoding. The IdP-derived path is reachable when the attacker controls a configured identity provider, or when the attacker controls the email or username claim on an attacker-controlled account and the configured identity provider permits the required unvalidated claim format. A victim must complete the form_post SSO flow for the injected markup to be rendered. The Warpgate Content-Security-Policy blocks injected JavaScript and event handlers, so the demonstrated impact is content spoofing, a false login form, or a meta refresh rather than script execution. This issue is fixed in version 0.27.6.