Sorry, I wrote in Japanese.

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バグ再現環境
WindowsXP SP2
jdk6u3
Hduson 1.175,1.176
サーブレットコンテナは内蔵のWinstone

「システムの設定」から認証を有効にし、ユーザを追加します。
「システムの設定」で、「権限管理」を変更（「Anyone can do anything」から「行列に
よる権限設定」に）します。
そうすると、エラーが発生します。

知人が言うに、OSはMacOSXとUbuntuでも内蔵のWinstoneとTomcatを使っても発生するそう
です。
なので、環境依存のバグではないと思われます。

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error log

Status Code: 500
Exception:
Stacktrace:

org.acegisecurity.AccessDeniedException:
org.acegisecurity.providers.UsernamePasswordAuthenticationToken@4e4cd182:
Username: hudson.security.HudsonPrivateSecurityRealm$Details@bd3b2d; Password:
[PROTECTED]; Authenticated: true; Details: null; Granted Authorities:
authenticated, admin is missing Read
at hudson.security.ACL.checkPermission(ACL.java:28)
at hudson.model.View.checkPermission(View.java:102)
at hudson.model.Hudson.getTarget(Hudson.java:2169)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:309)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:298)
at hudson.security.AccessDeniedHandlerImpl.handle(AccessDeniedHandlerImpl.java:51)
at
org.acegisecurity.ui.ExceptionTranslationFilter.handleException(ExceptionTranslationFilter.java:229)
at
org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:176)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:55)
at
org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:55)
at
org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:55)
at
org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:55)
at
org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:55)
at
org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:55)
at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:44)
at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:85)
at winstone.FilterConfiguration.execute(FilterConfiguration.java:195)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:368)
at winstone.RequestDispatcher.forward(RequestDispatcher.java:333)
at winstone.RequestHandlerThread.processRequest(RequestHandlerThread.java:244)
at winstone.RequestHandlerThread.run(RequestHandlerThread.java:150)
at java.lang.Thread.run(Unknown Source)