

{"id":582,"date":"2026-10-22T01:00:43","date_gmt":"2026-10-21T17:00:43","guid":{"rendered":"https:\/\/6589jk.cn\/index.php\/2026\/10\/22\/aao%ef%bc%81php-8-4-27-%e7%b4%a7%e6%80%a5%e5%8d%87%e7%ba%a7%e6%a1%88%ef%bc%9aphp2shell-%e6%bc%8f%e6%b4%9e%e4%b8%8e%e4%b8%80%e5%9c%ba%e4%be%9d%e8%b5%96%e5%a4%b1%e8%b8%aa%e4%ba%8b%e4%bb%b6\/"},"modified":"2026-10-22T01:00:43","modified_gmt":"2026-10-21T17:00:43","slug":"aao%ef%bc%81php-8-4-27-%e7%b4%a7%e6%80%a5%e5%8d%87%e7%ba%a7%e6%a1%88%ef%bc%9aphp2shell-%e6%bc%8f%e6%b4%9e%e4%b8%8e%e4%b8%80%e5%9c%ba%e4%be%9d%e8%b5%96%e5%a4%b1%e8%b8%aa%e4%ba%8b%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/6589jk.cn\/index.php\/2026\/10\/22\/aao%ef%bc%81php-8-4-27-%e7%b4%a7%e6%80%a5%e5%8d%87%e7%ba%a7%e6%a1%88%ef%bc%9aphp2shell-%e6%bc%8f%e6%b4%9e%e4%b8%8e%e4%b8%80%e5%9c%ba%e4%be%9d%e8%b5%96%e5%a4%b1%e8%b8%aa%e4%ba%8b%e4%bb%b6\/","title":{"rendered":"AAO\uff01PHP 8.4.27 \u7d27\u6025\u5347\u7ea7\u6848\uff1aPHP2Shell \u6f0f\u6d1e\u4e0e\u4e00\u573a\u4f9d\u8d56\u5931\u8e2a\u4e8b\u4ef6"},"content":{"rendered":"<p>AAO\uff01\u672c\u540d\u4fa6\u63a2\u6a58\u96ea\u8389\uff0c\u4eca\u5929\u8981\u529e\u7684\u662f<strong>\u300cPHP 8.4 \u79bb\u5947\u5931\u8054\u6848\u300d<\/strong>\u2014\u2014\u987a\u4fbf\u7275\u51fa\u4e86\u4e00\u6869\u9707\u52a8\u6574\u4e2a PHP \u4e16\u754c\u7684\u5927\u6848\uff01\ud83d\udd75\ufe0f\u200d\u2640\ufe0f<\/p>\n<p>\u4e8b\u60c5\u7684\u5f00\u59cb\u5f88\u6734\u7d20\uff1a\u67d0\u5929\u6253\u5f00\u7f51\u7ad9\uff0c\u9875\u9762\u767d\u7ed9\u4e86\u3002\u6253\u5f00\u65e5\u5fd7\u4e00\u770b\uff0cPHP \u8fde\u542f\u52a8\u90fd\u505a\u4e0d\u5230\u3002<\/p>\n<blockquote>\n<p>\u540d\u4fa6\u63a2\u7684\u804c\u4e1a\u4e60\u60ef\u58f0\u660e\uff1a\u672c\u6587\u4e0d\u5199\u4efb\u4f55\u5bc6\u7801\u3001\u5185\u7f51\u5730\u5740\u4e0e\u4e3b\u673a\u4fe1\u606f\u2014\u2014\u5377\u5b97\u91cc\u7684\u654f\u611f\u7ebf\u7d22\uff0c\u624d\u4e0d\u4f1a\u88ab\u65c1\u542c\u5e2d\u6284\u8d70\uff01\ud83d\udd0d<\/p>\n<\/blockquote>\n<h2>\u7b2c\u4e00\u6848\uff1a\u4f9d\u8d56\u5931\u8e2a\u4e8b\u4ef6<\/h2>\n<p>PHP-FPM \u7684\u62a5\u9519\u975e\u5e38\u5e72\u8106\uff1a<\/p>\n<pre><code>php-fpm: error while loading shared libraries:\r\nlibxml2.so.2: cannot open shared object file<\/code><\/pre>\n<p>\u5947\u602a\u7684\u662f\uff0c<code>libxml2<\/code> \u660e\u660e\u88c5\u7740\u3002\u7ee7\u7eed\u67e5\u4e0b\u53bb\uff0c\u771f\u76f8\u6d6e\u51fa\u6c34\u9762\u2014\u2014<strong>\u7cfb\u7edf\u8de8\u5927\u7248\u672c\u5347\u7ea7\u540e\uff0c\u4e00\u6279\u6838\u5fc3\u5e93\u7684 soname\uff08ABI \u7248\u672c\u53f7\uff09\u53d8\u4e86<\/strong>\uff0c\u800c\u8fd9\u4e2a PHP \u662f\u65e7\u7cfb\u7edf\u4e0a\u7f16\u8bd1\u7684\uff0c\u52a8\u6001\u94fe\u63a5\u5668\u6309\u8001\u540d\u5b57\u627e\u4e0d\u5230\u4eba\u3002<\/p>\n<ul>\n<li><code>libxml2.so.2<\/code> \u2192 \u65b0\u7248\u53ea\u6709 <code>libxml2.so.16<\/code><\/li>\n<li><code>libzip.so.4<\/code> \u2192 \u65b0\u7248\u53ea\u6709 <code>libzip.so.5<\/code><\/li>\n<li><code>libMagickWand-6.Q16.so.7<\/code> \u2192 \u65b0\u7248\u53ea\u5269 ImageMagick 7 \u7cfb\u5217<\/li>\n<li><code>libenchant-2.so.2<\/code> \u2192 \u4f9d\u8d56\u94fe\u4e00\u8def\u626f\u5230\u65e7\u7248 Perl API\uff0c\u88c5\u4e0d\u4e0a<\/li>\n<\/ul>\n<p>\u7ed3\u8bba\u5f88\u6b8b\u9177\uff1a<strong>PHP \u672c\u4f53\u6ca1\u574f\uff0c\u662f\u5b83\u811a\u4e0b\u7684\u5730\u57fa\u88ab\u6362\u6389\u4e86\u3002<\/strong><\/p>\n<h2>\u7b2c\u4e8c\u6b65\uff1a\u5148\u6551\u4eba\uff0c\u518d\u8ffd\u51f6<\/h2>\n<p>\u5f53\u52a1\u4e4b\u6025\u662f\u8ba9\u670d\u52a1\u5148\u6d3b\u8fc7\u6765\uff0c\u4e8e\u662f\u6309\u300c\u7f3a\u4ec0\u4e48\u8865\u4ec0\u4e48\u300d\u9010\u9879\u5904\u7f6e\uff1a<\/p>\n<ul>\n<li><strong>libxml2 \/ libzip<\/strong>\uff1a\u4ece\u4e0a\u4e00\u4e2a LTS \u7684\u8f6f\u4ef6\u6c60\u91cc\u53d6\u517c\u5bb9\u7248\u672c\u5355\u72ec\u5b89\u88c5\uff08\u65e7 soname \u4e0e\u65b0\u5e93\u5e76\u5b58\uff0c\u4e0d\u51b2\u7a81\uff09\uff0c\u5e76\u6807\u8bb0\u4e3a\u624b\u52a8\u5b89\u88c5\uff0c\u907f\u514d\u88ab <code>apt autoremove<\/code> \u987a\u624b\u6e05\u6389<\/li>\n<li><strong>imagick<\/strong>\uff1a\u4e0d\u786c\u88c5 ImageMagick 6\uff08\u4f1a\u4e0e\u7cfb\u7edf\u81ea\u5e26\u7684 7 \u51b2\u7a81\uff0c\u628a apt \u5361\u6b7b\u5728 Breaks \u4e0a\uff09\uff0c\u6539\u7528 PECL \u7684 imagick 3.8.1 <strong>\u9488\u5bf9 ImageMagick 7 \u91cd\u65b0\u7f16\u8bd1<\/strong><\/li>\n<li><strong>enchant<\/strong>\uff1a\u62fc\u5199\u68c0\u67e5\u6269\u5c55\uff0c\u4f9d\u8d56\u94fe\u5df2\u65ad\u88c2\uff0c\u5148\u5728 <code>php.ini<\/code> \u91cc\u6ce8\u91ca\u6389\u2014\u2014\u7ad9\u70b9\u7528\u4e0d\u5230\u5b83<\/li>\n<\/ul>\n<p>\u51e0\u5206\u949f\u540e\uff0cFPM \u91cd\u65b0\u62c9\u8d77\u6765\u4e86\uff0c\u9875\u9762\u56de\u6765\u4e86\u3002\u540d\u4fa6\u63a2\u672c\u6765\u6253\u7b97\u6536\u5de5\u2026\u2026\u76f4\u5230\u770b\u89c1\u4e00\u6761\u65b0\u95fb\u3002\ud83d\udcf0<\/p>\n<h2>\u7b2c\u4e8c\u6848\uff1aPHP2Shell\uff0c\u771f\u6b63\u7684\u51f6\u624b<\/h2>\n<p><strong>2026 \u5e74 10 \u6708 21 \u65e5<\/strong>\uff0cPHP \u5b98\u65b9\u53d1\u5e03\u4e86\u7d27\u6025\u5b89\u5168\u7248\u672c\uff0c\u540c\u65f6\u516c\u5f00\u4e24\u679a\u9ad8\u5371\u6f0f\u6d1e\uff1a<\/p>\n<ul>\n<li><strong>CVE-2026-109618<\/strong>\u300cRCE via OOM corruption\u300d<\/li>\n<li><strong>CVE-2026-109619<\/strong>\u300cRCE via stale global state\u300d<\/li>\n<\/ul>\n<p>\u5408\u79f0 <strong>PHP2Shell<\/strong>\u3002CVSS 4.0 \u8bc4\u5206 <strong>9.2\uff08CRITICAL\uff09<\/strong>\uff0c\u653b\u51fb\u5411\u91cf\u662f\u7f51\u7edc\uff0c<strong>\u65e0\u9700\u4efb\u4f55\u8eab\u4efd\u8ba4\u8bc1<\/strong>\uff0c\u53ef\u9020\u6210\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6216\u8bfb\u53d6\u8fdb\u7a0b\u5185\u5b58\uff08\u91cc\u9762\u53ef\u80fd\u6709\u522b\u7684\u8bf7\u6c42\u7559\u4e0b\u7684\u4ee4\u724c\u3001\u5bc6\u94a5\uff09\u3002<\/p>\n<p>\u66f4\u5413\u4eba\u7684\u662f\u5f71\u54cd\u8303\u56f4\uff1a<strong>\u4ece PHP 5.4 \u5f00\u59cb\u7684\u51e0\u4e4e\u6240\u6709\u7248\u672c\u90fd\u4e2d\u62db<\/strong>\u3002\u539f\u56e0\u662f PHP \u5904\u7406\u5185\u5b58\u8017\u5c3d\uff08OOM\uff09\u65f6\u7528 <code>longjmp()<\/code> \u63d0\u524d\u8df3\u51fa\u5f53\u524d\u4e0a\u4e0b\u6587\uff0c\u67d0\u4e9b\u573a\u666f\u4e0b\u8bf7\u6c42\u5185\u5b58\u5c1a\u672a\u521d\u59cb\u5316\u5c31\u88ab\u653e\u5f03\uff0c\u6536\u5c3e\u9636\u6bb5\u8bfb\u5230\u8fd9\u5757\u300c\u810f\u5185\u5b58\u300d\uff0c\u8fdb\u800c\u88ab\u5229\u7528\u3002<\/p>\n<p>\u574f\u6d88\u606f\u8bf4\u5b8c\u4e86\uff0c\u597d\u6d88\u606f\u662f\uff1a<strong>\u8865\u4e01\u540c\u4e00\u5929\u5c31\u51fa\u4e86<\/strong>\u3002<\/p>\n<pre><code>8.2.35 \/ 8.3.36 \/ 8.4.27 \/ 8.5.12\r\n\uff08\u5206\u522b\u4fee\u590d\u5404\u81ea\u7684\u53d7\u5f71\u54cd\u533a\u95f4\uff09<\/code><\/pre>\n<p>\u5b98\u65b9\u63aa\u8f9e\u5f88\u660e\u786e\uff1a<strong>\u5347\u7ea7\u662f\u552f\u4e00\u5b8c\u6574\u7684\u4fee\u590d\u624b\u6bb5<\/strong>\uff0c\u6ca1\u6709\u5f7b\u5e95\u7684\u7ed5\u8def\u65b9\u6848\u3002\u4e34\u65f6\u7f13\u89e3\uff08\u4f8b\u5982\u628a <code>memory_limit<\/code> \u8bbe\u4e3a <code>-1<\/code>\u3001\u6536\u7d27 <code>post_max_size<\/code>\u3001\u5728\u524d\u7aef\u62e6\u622a multipart \u8bf7\u6c42\uff09\u53ea\u80fd\u964d\u4f4e\u98ce\u9669\uff0c\u4e0d\u80fd\u66ff\u4ee3\u5347\u7ea7\u3002<\/p>\n<blockquote>\n<p>\u987a\u4fbf\u5212\u91cd\u70b9\uff1a<strong>\u4e0d\u8981<\/strong>\u7528 <code>RLIMIT_AS<\/code>\uff0f<code>RLIMIT_DATA<\/code> \u53bb\u505a\u5185\u5b58\u9650\u5236\u2014\u2014\u90a3\u4f1a\u8ba9 <code>mmap()<\/code> \u5931\u8d25\uff0c\u6070\u597d\u89e6\u53d1\u6709\u6f0f\u6d1e\u7684\u90a3\u6761 <code>longjmp()<\/code> \u8def\u5f84\u3002<\/p>\n<\/blockquote>\n<p>\u6211\u8fd9\u8fb9\u8dd1\u7684\u662f PHP 8.4.8\uff0c\u6b63\u843d\u5728\u53d7\u5f71\u54cd\u533a\u95f4\uff08&lt; 8.4.27\uff09\u3002\u867d\u7136\u5f53\u65f6\u7ad9\u70b9\u5e76\u672a\u5f00\u653e PHP \u5165\u53e3\uff0c\u4f46\u300c\u6ca1\u66b4\u9732\u300d\u4e0d\u7b49\u4e8e\u300c\u53ef\u4ee5\u62d6\u300d\u2014\u2014\u8865\u4e01\u6253\u4e0a\u624d\u662f\u7ed3\u6848\u3002<\/p>\n<h2>\u7b2c\u4e09\u6848\uff1a\u7f16\u8bd1\u73b0\u573a\uff0c\u4e00\u573a\u7a7a\u95f4\u4e0d\u8db3\u7684\u60ac\u6848<\/h2>\n<p>\u5347\u7ea7\u65b9\u5f0f\u9009\u62e9\u6e90\u7801\u7f16\u8bd1\u3002\u4e0b\u8f7d \u27f6 <code>configure<\/code> \u27f6 <code>make<\/code>\uff0c\u4e00\u5207\u987a\u5229\u2026\u2026\u76f4\u5230\u94fe\u63a5\u9636\u6bb5\u7a81\u7136\u66b4\u6bd9\uff1a<\/p>\n<pre><code>ld: final link failed: No space left on device\r\nmake: *** [sapi\/cgi\/php-cgi] \u9519\u8bef 1<\/code><\/pre>\n<p>\u78c1\u76d8\u8fd8\u6709 19G \u7a7a\u95f2\uff0c\u600e\u4e48\u4f1a\u6ca1\u7a7a\u95f4\uff1f\u67e5\u4e0b\u53bb\u53d1\u73b0\u771f\u51f6\uff1a<strong><code>\/tmp<\/code> \u6302\u7684\u662f tmpfs\uff08\u5185\u5b58\u76d8\uff09\uff0c\u53ea\u6709 800MB<\/strong>\u3002\u800c PHP \u7684\u6e90\u7801\u6811\u52a0\u76ee\u6807\u6587\u4ef6\u5360\u4e86\u5c06\u8fd1 600MB\uff0c\u94fe\u63a5\u65f6\u518d\u5199\u4e00\u4e2a 60MB \u7684\u4ea7\u7269\uff0c\u76f4\u63a5\u7206\u6389\u3002<\/p>\n<p>\u800c\u4e14 tmpfs \u5403\u6389\u7684\u662f\u5185\u5b58\u2014\u2014\u7f16\u8bd1\u671f\u95f4\u5b83\u8fd8\u5728\u8ddf\u6570\u636e\u5e93\u3001Web \u670d\u52a1\u62a2\u8d44\u6e90\uff0c\u7b80\u76f4\u662f\u6848\u4e2d\u6848\u3002<\/p>\n<p><strong>\u7834\u6848\u624b\u6cd5\uff1a<\/strong><\/p>\n<ol>\n<li>\u628a\u6574\u4e2a\u6784\u5efa\u76ee\u5f55\u642c\u5230\u78c1\u76d8\uff08<code>\/var\/tmp<\/code>\uff09\uff0c\u817e\u7a7a tmpfs<\/li>\n<li>\u7528 <code>mount --bind<\/code> \u628a\u78c1\u76d8\u76ee\u5f55\u6302\u56de\u539f\u6765\u7684\u7edd\u5bf9\u8def\u5f84\uff0c\u8fd9\u6837 Makefile \u91cc\u5199\u6b7b\u7684\u8def\u5f84\u4e0d\u7528\u6539<\/li>\n<li>\u91cd\u65b0\u94fe\u63a5 <code>php-cgi<\/code>\u3001<code>phpdbg<\/code>\uff0c\u4e00\u6b21\u6210\u529f<\/li>\n<li><code>make install<\/code> \u7edf\u4e00\u5b89\u88c5\uff0c\u8ba9\u5934\u6587\u4ef6\u3001<code>phpize<\/code>\u3001<code>php-config<\/code> \u4e0e\u65b0\u7248\u672c\u4fdd\u6301\u540c\u4e00\u5957<\/li>\n<\/ol>\n<p>\u8fd8\u6709\u4e00\u4e2a\u5bb9\u6613\u6f0f\u6389\u7684\u7ec6\u8282\uff1a<strong>OPcache \u662f\u72ec\u7acb\u7f16\u8bd1\u7684\u5171\u4eab\u6a21\u5757<\/strong>\uff0c\u4e3b\u7a0b\u5e8f\u5347\u4e86\u3001\u5b83\u6ca1\u5347\uff0c\u5c31\u8fd8\u662f\u65e7\u7248\u672c\u3002\u5355\u72ec\u7f16\u8bd1\u4e00\u6b21 <code>opcache.so<\/code> \u624d\u7b97\u5b8c\u6574\u3002<\/p>\n<h2>\u7ed3\u6848\uff1a\u9a8c\u8bc1\u6e05\u5355<\/h2>\n<p>\u5347\u7ea7\u4e0d\u662f\u300c\u88c5\u5b8c\u5c31\u7b97\u300d\uff0c\u8981\u62ff\u8bc1\u636e\u8bf4\u8bdd\uff1a<\/p>\n<ul>\n<li><code>php<\/code> \/ <code>php-cgi<\/code> \/ <code>php-fpm<\/code> \/ <code>phpdbg<\/code> \u5168\u90e8\u62a5\u544a <strong>8.4.27<\/strong><\/li>\n<li>\u6a21\u5757\u6b63\u5e38\u52a0\u8f7d\uff1a<strong>68 \u4e2a\u6269\u5c55<\/strong>\uff0c<code>imagick<\/code>\uff08ImageMagick 7.1.2 Q16\uff09\u3001<code>zip<\/code>\u3001<code>Zend OPcache<\/code> \u5747\u5728\u5217<\/li>\n<li>OPcache \u72b6\u6001\u4e3a <code>enabled=true<\/code>\uff0c\u6ca1\u6709 ABI \u4e0d\u5339\u914d\u544a\u8b66<\/li>\n<li><strong>\u91cd\u542f FPM<\/strong>\uff1a\u4e0d\u91cd\u542f\u7684\u8bdd\uff0c\u8001 worker \u8fd8\u5728\u8dd1\u65e7\u4e8c\u8fdb\u5236\uff0c\u8865\u4e01\u7b49\u4e8e\u6ca1\u6253<\/li>\n<li>\u65e7\u4e8c\u8fdb\u5236\u5168\u90e8\u7559\u4e86 <code>.bak<\/code> \u5907\u4efd\uff0c\u968f\u65f6\u53ef\u4ee5\u56de\u6eda<\/li>\n<\/ul>\n<p>\u9a8c\u8bc1\u901a\u8fc7\uff0c\u6536\u5de5\u3002AAO\uff01\u2728<\/p>\n<h2>\u529e\u6848\u5fc3\u5f97\uff08\u53ef\u590d\u7528\u7684 Checklist\uff09<\/h2>\n<ul>\n<li><strong>\u5927\u7248\u672c\u5347\u7ea7\u7cfb\u7edf\u540e\uff0c\u5148\u8dd1\u4e00\u904d <code>ldd<\/code><\/strong>\uff1a<code>ldd \/path\/to\/php-fpm | grep \"not found\"<\/code>\uff0c\u6bd4\u770b\u65e5\u5fd7\u731c\u5feb\u5f97\u591a<\/li>\n<li><strong>soname \u53d8\u4e86\u4e0d\u4ee3\u8868\u8981\u91cd\u88c5\u6574\u4e2a\u7cfb\u7edf<\/strong>\uff1a\u88c5\u65e7 LTS \u7684\u517c\u5bb9\u5e93\u662f\u6700\u7701\u4e8b\u7684\u6551\u6025\u65b9\u6848\uff0c\u4f46\u8981 <code>apt-mark manual<\/code> \u9501\u4f4f<\/li>\n<li><strong>\u5b89\u5168\u516c\u544a\u8981\u4ee5\u5b98\u65b9\u4e3a\u51c6<\/strong>\uff1a\u672c\u6b21\u8865\u4e01\u7248\u672c\u3001\u53d7\u5f71\u54cd\u533a\u95f4\u5728 CVE \u8bb0\u5f55\u91cc\u5199\u5f97\u6e05\u6e05\u695a\u695a\uff0c\u522b\u4fe1\u4e8c\u624b\u7684\u7248\u672c\u53f7<\/li>\n<li><strong>\u7f16\u8bd1\u524d\u5148\u770b <code>\/tmp<\/code> \u662f\u4ec0\u4e48\u6587\u4ef6\u7cfb\u7edf<\/strong>\uff1a<code>df -hT \/tmp<\/code>\uff0ctmpfs \u8bf7\u8ba9\u8def\u7ed9 <code>\/var\/tmp<\/code><\/li>\n<li><strong>\u5171\u4eab\u6269\u5c55\u8981\u8ddf\u7740\u4e3b\u7a0b\u5e8f\u4e00\u8d77\u5347<\/strong>\uff1aOPcache \u8fd9\u7c7b Zend 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