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Move SAML Post inline javascript to script tag 

To avoid relying on HTML event handlers and adding unsafe-* rules to CSP, the javascript is moved to a <script> tag. This also allows a better browser compatibility

Closes gh-11676
This commit is contained in:
Marcus Da Coregio 2022-08-10 09:36:28 -03:00 committed by Josh Cummings
parent e3d85881e9
commit 7359bd5949
6 changed files with 13 additions and 10 deletions
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5
saml2/saml2-service-provider/src/main/java/org/springframework/security/saml2/provider/service/servlet/filter/Saml2WebSsoAuthenticationRequestFilter.java
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@ -237,10 +237,10 @@ public class Saml2WebSsoAuthenticationRequestFilter extends OncePerRequestFilter
html.append("<!DOCTYPE html>\n");
html.append("<html>\n").append(" <head>\n");
html.append(" <meta http-equiv=\"Content-Security-Policy\" ")
.append("content=\"script-src 'sha256-ePniVEkSivX/c7XWBGafqh8tSpiRrKiqYeqbG7N1TOE='\">\n");
.append("content=\"script-src 'sha256-t+jmhLjs1ocvgaHBJsFcgznRk68d37TLtbI3NE9h7EU='\">\n");
html.append(" <meta charset=\"utf-8\" />\n");
html.append(" </head>\n");
html.append(" <body onload=\"document.forms[0].submit()\">\n");
html.append(" <body>\n");
html.append(" <noscript>\n");
html.append(" <p>\n");
html.append(" <strong>Note:</strong> Since your browser does not support JavaScript,\n");
@ -269,6 +269,7 @@ public class Saml2WebSsoAuthenticationRequestFilter extends OncePerRequestFilter
html.append(" </form>\n");
html.append(" \n");
html.append(" </body>\n");
html.append(" <script>window.onload = () => document.forms[0].submit();</script>\n");
html.append("</html>");
return html.toString();
}

3
saml2/saml2-service-provider/src/main/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2LogoutRequestFilter.java
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@ -216,7 +216,7 @@ public final class Saml2LogoutRequestFilter extends OncePerRequestFilter {
html.append("<!DOCTYPE html>\n");
html.append("<html>\n").append(" <head>\n");
html.append(" <meta http-equiv=\"Content-Security-Policy\" ")
.append("content=\"script-src 'sha256-ePniVEkSivX/c7XWBGafqh8tSpiRrKiqYeqbG7N1TOE='\">\n");
.append("content=\"script-src 'sha256-t+jmhLjs1ocvgaHBJsFcgznRk68d37TLtbI3NE9h7EU='\">\n");
html.append(" <meta charset=\"utf-8\" />\n");
html.append(" </head>\n");
html.append(" <body onload=\"document.forms[0].submit()\">\n");
@ -248,6 +248,7 @@ public final class Saml2LogoutRequestFilter extends OncePerRequestFilter {
html.append(" </form>\n");
html.append(" \n");
html.append(" </body>\n");
html.append(" <script>window.onload = () => document.forms[0].submit();</script>\n");
html.append("</html>");
return html.toString();
}

3
saml2/saml2-service-provider/src/main/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2RelyingPartyInitiatedLogoutSuccessHandler.java
View File

@ -120,7 +120,7 @@ public final class Saml2RelyingPartyInitiatedLogoutSuccessHandler implements Log
html.append("<!DOCTYPE html>\n");
html.append("<html>\n").append(" <head>\n");
html.append(" <meta http-equiv=\"Content-Security-Policy\" ")
.append("content=\"script-src 'sha256-ePniVEkSivX/c7XWBGafqh8tSpiRrKiqYeqbG7N1TOE='\">\n");
.append("content=\"script-src 'sha256-t+jmhLjs1ocvgaHBJsFcgznRk68d37TLtbI3NE9h7EU='\">\n");
html.append(" <meta charset=\"utf-8\" />\n");
html.append(" </head>\n");
html.append(" <body onload=\"document.forms[0].submit()\">\n");
@ -152,6 +152,7 @@ public final class Saml2RelyingPartyInitiatedLogoutSuccessHandler implements Log
html.append(" </form>\n");
html.append(" \n");
html.append(" </body>\n");
html.append(" <script>window.onload = () => document.forms[0].submit();</script>\n");
html.append("</html>");
return html.toString();
}

4
saml2/saml2-service-provider/src/test/java/org/springframework/security/saml2/provider/service/servlet/filter/Saml2WebSsoAuthenticationRequestFilterTests.java
View File

@ -199,8 +199,8 @@ public class Saml2WebSsoAuthenticationRequestFilterTests {
this.filter.doFilterInternal(this.request, this.response, this.filterChain);
assertThat(this.response.getHeader("Location")).isNull();
assertThat(this.response.getContentAsString()).contains(
"<meta http-equiv=\"Content-Security-Policy\" content=\"script-src 'sha256-ePniVEkSivX/c7XWBGafqh8tSpiRrKiqYeqbG7N1TOE='\">")
.contains("<body onload=\"document.forms[0].submit()\">")
"<meta http-equiv=\"Content-Security-Policy\" content=\"script-src 'sha256-t+jmhLjs1ocvgaHBJsFcgznRk68d37TLtbI3NE9h7EU='\">")
.contains("<script>window.onload = () => document.forms[0].submit();</script>")
.contains("<form action=\"https://sso-url.example.com/IDP/SSO\" method=\"post\">")
.contains("<input type=\"hidden\" name=\"SAMLRequest\"")
.contains("value=\"" + relayStateEncoded + "\"");

4
saml2/saml2-service-provider/src/test/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2LogoutRequestFilterTests.java
View File

@ -118,8 +118,8 @@ public class Saml2LogoutRequestFilterTests {
assertThat(content).contains(Saml2ParameterNames.SAML_RESPONSE);
assertThat(content).contains(registration.getAssertingPartyDetails().getSingleLogoutServiceResponseLocation());
assertThat(content).contains(
"<meta http-equiv=\"Content-Security-Policy\" content=\"script-src 'sha256-ePniVEkSivX/c7XWBGafqh8tSpiRrKiqYeqbG7N1TOE='\">");
assertThat(content).contains("<body onload=\"document.forms[0].submit()\">");
"<meta http-equiv=\"Content-Security-Policy\" content=\"script-src 'sha256-t+jmhLjs1ocvgaHBJsFcgznRk68d37TLtbI3NE9h7EU='\">");
assertThat(content).contains("<script>window.onload = () => document.forms[0].submit();</script>");
verify(this.securityContextHolderStrategy).getContext();
}

4
saml2/saml2-service-provider/src/test/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2RelyingPartyInitiatedLogoutSuccessHandlerTests.java
View File

@ -98,8 +98,8 @@ public class Saml2RelyingPartyInitiatedLogoutSuccessHandlerTests {
assertThat(content).contains(Saml2ParameterNames.SAML_REQUEST);
assertThat(content).contains(registration.getAssertingPartyDetails().getSingleLogoutServiceLocation());
assertThat(content).contains(
"<meta http-equiv=\"Content-Security-Policy\" content=\"script-src 'sha256-ePniVEkSivX/c7XWBGafqh8tSpiRrKiqYeqbG7N1TOE='\">");
assertThat(content).contains("<body onload=\"document.forms[0].submit()\">");
"<meta http-equiv=\"Content-Security-Policy\" content=\"script-src 'sha256-t+jmhLjs1ocvgaHBJsFcgznRk68d37TLtbI3NE9h7EU='\">");
assertThat(content).contains("<script>window.onload = () => document.forms[0].submit();</script>");
}
private Saml2Authentication authentication(RelyingPartyRegistration registration) {