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<h3>
Imran Hussain pushed to branch master
at <a href="https://projects.sucs.org/sucssite/sso">sucssite / sso</a>
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<h4>
Commits:
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<strong><a href="https://projects.sucs.org/sucssite/sso/-/commit/8fe321269b370538bcf694429d9fc7ff69e88348">8fe32126</a></strong>
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<span>by Imran Hussain</span>
<i>at 2021-12-22T19:21:58+00:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add IP address based rate limiting as well</pre>
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<strong><a href="https://projects.sucs.org/sucssite/sso/-/commit/f11ef777e3a670def4b55678f87d3bc2bd80a5a2">f11ef777</a></strong>
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<span>by Imran Hussain</span>
<i>at 2021-12-22T19:22:56+00:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Merge branch 'ip-ratelimit' into 'master'
Add IP address based rate limiting as well
See merge request sucssite/sso!1</pre>
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<h4>1 changed file:</h4>
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public/index.php
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<h4>Changes:</h4>
<li id="0e61f67641b441bb3ee38e903c594d99cafa14b4">
<a href="https://projects.sucs.org/sucssite/sso/-/compare/4fb0af28ac6f58927b0c10e0460013d01f7c97f7...f11ef777e3a670def4b55678f87d3bc2bd80a5a2#0e61f67641b441bb3ee38e903c594d99cafa14b4"><strong>public/index.php</strong></a>
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<td class="line_content match" style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -29,13 +29,24 @@ $SESSIONID = session_id();</td>
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<pre style="margin: 0;"> <span id="LC29" class="line" lang="php"><span class="c1" style="color: #998; font-style: italic;">// otherwise set them up</span></span>
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<pre style="margin: 0;"> <span id="LC30" class="line" lang="php"><span class="k" style="font-weight: 600;">require</span> <span class="s2" style="color: #d14;">"../lib/db.php"</span><span class="p">;</span></span>
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<pre style="margin: 0;"> <span id="LC31" class="line" lang="php"></span>
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<pre style="margin: 0;">+<span id="LC32" class="line" lang="php"><span class="c1" style="color: #998; font-style: italic;">// Check if they have just cleared their cookie/session id and are trying to bypass the rate limiting</span></span>
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<pre style="margin: 0;">+<span id="LC33" class="line" lang="php"><span class="c1" style="color: #998; font-style: italic;">// best we can do is IP ratelimit people</span></span>
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<pre style="margin: 0;">+<span id="LC34" class="line" lang="php"><span class="nv" style="color: #008080;">$ipBan_result</span> <span class="o" style="font-weight: 600;">=</span> <span class="nv" style="color: #008080;">$DB_CON</span><span class="o" style="font-weight: 600;">-></span><span class="nf" style="color: #900; font-weight: 600;">query</span><span class="p">(</span><span class="s2" style="color: #d14;">"SELECT * FROM sessions WHERE ipaddr='${_SERVER["</span><span class="no" style="color: #008080;">REMOTE_ADDR</span><span class="s2" style="color: #d14;">"]}' ORDER BY lastfailedlogintime DESC LIMIT 1"</span><span class="p">);</span></span>
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<pre style="margin: 0;">+<span id="LC35" class="line" lang="php"><span class="nv" style="color: #008080;">$ipBan_details</span> <span class="o" style="font-weight: 600;">=</span> <span class="nv" style="color: #008080;">$ipBan_result</span><span class="o" style="font-weight: 600;">-></span><span class="nf" style="color: #900; font-weight: 600;">fetchArray</span><span class="p">();</span></span>
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<pre style="margin: 0;">+<span id="LC36" class="line" lang="php"></span>
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<pre style="margin: 0;">+<span id="LC37" class="line" lang="php"><span class="c1" style="color: #998; font-style: italic;">// if their last login attempt was less than 30 mins ago</span></span>
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<pre style="margin: 0;">+<span id="LC38" class="line" lang="php"><span class="c1" style="color: #998; font-style: italic;">// 30 mins to really punish ban avoiders </span></span>
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<pre style="margin: 0;">+<span id="LC39" class="line" lang="php"><span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="nv" style="color: #008080;">$ipBan_details</span><span class="p">[</span><span class="s2" style="color: #d14;">"lastfailedlogintime"</span><span class="p">]</span> <span class="o" style="font-weight: 600;"><=</span> <span class="nb" style="color: #0086b3;">strtotime</span><span class="p">(</span><span class="s2" style="color: #d14;">"-30 minutes"</span><span class="p">))</span> <span class="p">{</span></span>
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<pre style="margin: 0;">+<span id="LC40" class="line" lang="php"> <span class="nv" style="color: #008080;">$RATELIMITED</span> <span class="o" style="font-weight: 600;">=</span> <span class="kc" style="font-weight: 600;">true</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC41" class="line" lang="php"><span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC42" class="line" lang="php"></span>
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<pre style="margin: 0;"> <span id="LC43" class="line" lang="php"><span class="nv" style="color: #008080;">$result</span> <span class="o" style="font-weight: 600;">=</span> <span class="nv" style="color: #008080;">$DB_CON</span><span class="o" style="font-weight: 600;">-></span><span class="nf" style="color: #900; font-weight: 600;">query</span><span class="p">(</span><span class="s2" style="color: #d14;">"SELECT * FROM sessions WHERE id='${SESSIONID}'"</span><span class="p">);</span></span>
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<pre style="margin: 0;"> <span id="LC44" class="line" lang="php"></span>
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<pre style="margin: 0;"> <span id="LC45" class="line" lang="php"><span class="nv" style="color: #008080;">$details</span> <span class="o" style="font-weight: 600;">=</span> <span class="nv" style="color: #008080;">$result</span><span class="o" style="font-weight: 600;">-></span><span class="nf" style="color: #900; font-weight: 600;">fetchArray</span><span class="p">();</span></span>
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<pre style="margin: 0;"> <span id="LC46" class="line" lang="php"></span>
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<pre style="margin: 0;"> <span id="LC47" class="line" lang="php"><span class="c1" style="color: #998; font-style: italic;">// if there's an entry then load that data otherwise</span></span>
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<pre style="margin: 0;"> <span id="LC48" class="line" lang="php"><span class="c1" style="color: #998; font-style: italic;">// otherwise make an entry</span></span>
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<pre style="margin: 0;">-<span id="LC38" class="line" lang="php"><span class="k" style="font-weight: 600;">if</span> <span class="p">(</span> <span class="nv" style="color: #008080;">$details</span><span class="p">[</span><span class="s2" style="color: #d14;">"id"</span><span class="p">]</span> <span class="o" style="font-weight: 600;">===</span> <span class="nv" style="color: #008080;">$SESSIONID</span> <span class="p">)</span> <span class="p">{</span></span>
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49
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<pre style="margin: 0;">+<span id="LC49" class="line" lang="php"><span class="k" style="font-weight: 600;">if</span> <span class="p">(</span> <span class="nv" style="color: #008080;">$details</span><span class="p">[</span><span class="s2" style="color: #d14;">"id"</span><span class="p">]</span> <span class="o" style="font-weight: 600;">===</span> <span class="nv" style="color: #008080;">$SESSIONID</span> <span class="o" style="font-weight: 600;"><span class="idiff left addition">&&</span></span><span class="idiff addition"> </span><span class="o" style="font-weight: 600;"><span class="idiff addition">!</span></span><span class="nv" style="color: #008080;"><span class="idiff right addition">$RATELIMITED</span></span><span class="p">)</span> <span class="p">{</span></span>
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39
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50
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<pre style="margin: 0;"> <span id="LC50" class="line" lang="php"> <span class="c1" style="color: #998; font-style: italic;">//var_dump($details);</span></span>
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51
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<pre style="margin: 0;"> <span id="LC51" class="line" lang="php"> <span class="c1" style="color: #998; font-style: italic;">//echo time();</span></span>
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<pre style="margin: 0;"> <span id="LC52" class="line" lang="php"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="nv" style="color: #008080;">$details</span><span class="p">[</span><span class="s2" style="color: #d14;">"sucs_username"</span><span class="p">]</span> <span class="o" style="font-weight: 600;">!==</span> <span class="kc" style="font-weight: 600;">null</span><span class="p">)</span> <span class="p">{</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="86" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="97" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match" style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -86,7 +97,7 @@ if ( isset($_POST["username"]) && isset($_POST["password"]) && !$RATELIMITED ) {</td>
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86
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97
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<pre style="margin: 0;"> <span id="LC97" class="line" lang="php"> <span class="nv" style="color: #008080;">$DB_CON</span><span class="o" style="font-weight: 600;">-></span><span class="nb" style="color: #0086b3;">exec</span><span class="p">(</span><span class="s2" style="color: #d14;">"UPDATE sessions SET failedlogincount=${details['failedlogincount']}, lastfailedlogintime=strftime('%s','now') WHERE id='${SESSIONID}'"</span><span class="p">);</span></span>
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87
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98
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<pre style="margin: 0;"> <span id="LC98" class="line" lang="php"> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC99" class="line" lang="php"></span>
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89
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<pre style="margin: 0;">-<span id="LC89" class="line" lang="php"><span class="p">}</span> <span class="k" style="font-weight: 600;">elseif</span> <span class="p">(</span> <span class="k" style="font-weight: 600;">isset</span><span class="p">(</span><span class="nv" style="color: #008080;">$_COOKIE</span><span class="p">[</span><span class="s2" style="color: #d14;">"sucssite_session"</span><span class="p">])</span> <span class="p">)</span> <span class="p">{</span></span>
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100
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<pre style="margin: 0;">+<span id="LC100" class="line" lang="php"><span class="p">}</span> <span class="k" style="font-weight: 600;">elseif</span> <span class="p">(</span> <span class="k" style="font-weight: 600;">isset</span><span class="p">(</span><span class="nv" style="color: #008080;">$_COOKIE</span><span class="p">[</span><span class="s2" style="color: #d14;">"sucssite_session"</span><span class="p">])</span> <span class="o" style="font-weight: 600;"><span class="idiff left addition">&&</span></span><span class="idiff addition"> </span><span class="o" style="font-weight: 600;"><span class="idiff addition">!</span></span><span class="nv" style="color: #008080;"><span class="idiff right addition">$RATELIMITED</span></span><span class="p">)</span> <span class="p">{</span></span>
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90
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101
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<pre style="margin: 0;"> <span id="LC101" class="line" lang="php"></span>
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91
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102
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<pre style="margin: 0;"> <span id="LC102" class="line" lang="php"> <span class="c1" style="color: #998; font-style: italic;">// found a sucssite_session</span></span>
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92
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103
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<pre style="margin: 0;"> <span id="LC103" class="line" lang="php"> <span class="nv" style="color: #008080;">$legacySessionID</span> <span class="o" style="font-weight: 600;">=</span> <span class="nv" style="color: #008080;">$_COOKIE</span><span class="p">[</span><span class="s2" style="color: #d14;">"sucssite_session"</span><span class="p">];</span></span>
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