{"id":9947,"date":"2005-03-14T00:00:00","date_gmt":"2005-03-13T16:00:00","guid":{"rendered":"http:\/\/15.134.89.131\/archive\/2005\/03\/14\/%e5%ad%a6%e4%b9%a0%e7%97%85%e6%af%92%e5%b0%8f%e7%9f%a5%e8%af%86-%e6%b5%85%e8%b0%88%e5%85%b3%e4%ba%8e-unix-%e7%b3%bb%e7%bb%9f%e4%b8%8b%e7%9a%84%e7%97%85%e6%af%92%e7%89%b9%e7%82%b9-%e7%91%9e%e6%98%9f\/"},"modified":"2005-03-14T00:00:00","modified_gmt":"2005-03-13T16:00:00","slug":"%e5%ad%a6%e4%b9%a0%e7%97%85%e6%af%92%e5%b0%8f%e7%9f%a5%e8%af%86-%e6%b5%85%e8%b0%88%e5%85%b3%e4%ba%8e-unix-%e7%b3%bb%e7%bb%9f%e4%b8%8b%e7%9a%84%e7%97%85%e6%af%92%e7%89%b9%e7%82%b9-%e7%91%9e%e6%98%9f","status":"publish","type":"post","link":"http:\/\/15.134.89.131\/archive\/?p=9947","title":{"rendered":"\u5b66\u4e60\u75c5\u6bd2\u5c0f\u77e5\u8bc6 \u6d45\u8c08\u5173\u4e8e Unix \u7cfb\u7edf\u4e0b\u7684\u75c5\u6bd2\u7279\u70b9 –\u745e\u661f\u8d44\u8baf"},"content":{"rendered":"

\ud83d\udc49 \u672c\u6587\u4f5c\u8005\uff1a<\/strong>\u51af\u865a<\/p>\n

\n ELK CLONER:\u7b2c\u4e00\u4e2a\u8ba1\u7b97\u673a\u75c5\u6bd2
\n

    \u5b83\u5c06\u4f1a\u5f97\u5230\u4f60\u78c1\u76d8\u4e0a\u6240\u6709\u7684\u4e1c\u4e1c\uff0c\u5b83\u751a\u81f3\u5c06\u6e17\u900f\u5230\u82af\u7247\u5185\u90e8\uff0c\u8fd9\u5c31\u662fCloner! <\/P>
\n

    \u5b83\u4f1a\u8c61\u80f6\u6c34\u4e00\u6837\u7c98\u4f4f\u4f60\uff0c\u5b83\u8fd8\u4f1a\u4fee\u6539\u5185\u5b58! <\/P>
\n

    \u8ba1\u7b97\u673a\u75c5\u6bd2\u662f\u4e00\u79cd\u5728\u5927\u91cf\u7684\u7535\u5b50\u7834\u574f\u6280\u672f\u624b\u6bb5\u4e2d\u6700\u8457\u540d\u7684\u6210\u5458.\u4ed6\u4eec\u5b9e\u9645\u4e0a\u5c31\u662f\u4e00\u4e9b\u975e\u5e38\u5371\u9669\u7684\u6076\u610f\u7a0b\u5e8f,\u4ed6\u4eec\u662f\u4e11\u964b\u7684,\u4e0d\u8fc7\u5728\u6211\u770b\u6765\u4ed6\u4eec\u5f88\u53ef\u7231,\u539f\u4e8e\u6211\u5bf9Internet\u7684\u9a7e\u9a6d\u548c\u5bf9\u8ba1\u7b97\u673a\u7a0b\u5e8f\u7684\u63a2\u7d22.\u4ed6\u4eec\u4f1a\u590d\u5236\u81ea\u5df1\u5e76\u4e14\u53ef\u4ee5\u4f20\u67d3\u5176\u5b83\u6587\u4ef6,\u76f4\u81f3\u73b0\u5728,\u8fd9\u4e9b\u88ab\u4f20\u67d3\u7684\u6587\u4ef6\u751a\u81f3\u5305\u62ec\u4e86\u90a3\u4e9b\u5f88\u6e05\u767d\u7684\u6587\u6863\u6587\u4ef6.\u800c\u4e14\u4ed6\u4eec\u5f88\u5bb9\u6613\u83b7\u5f97.\u4ed6\u4eec\u53ef\u4ee5\u968f\u5904\u4f20\u64ad,\u4efb\u4f55\u65f6\u95f4,\u4efb\u4f55\u5730\u70b9.\u5b9e\u9645\u4e0a,\u6ca1\u6709\u4e00\u4e2aOS\u53ef\u4ee5\u5b8c\u5168\u62b5\u5fa1\u75c5\u6bd2\u7684.\u4e00\u4e2a\u75c5\u6bd2\u53ef\u4ee5\u5b8c\u5168\u4f9d\u9760\u7cfb\u7edf\u672c\u8eab\u8fdb\u884c\u590d\u5236,\u6bd4\u5982\u5229\u7528Windows\u7cfb\u5217\u64cd\u4f5c\u7cfb\u7edf\u7684pe\u683c\u5f0f\u7684\u53ef\u6267\u884c\u6587\u4ef6\u548c\u5229\u7528\u7c7bunix\u64cd\u4f5c\u7cfb\u7edf\u7684elf\u683c\u5f0f.\u6240\u4ee5,\u4efb\u4f55\u8ba1\u7b97\u673a\u75c5\u6bd2\u90fd\u4f9d\u9644\u4e8eOS\u7684\u4f53\u7cfb\u7ed3\u6784,\u5404\u79cdOS\u7684\u75c5\u6bd2\u7684\u5199\u6cd5\u90fd\u4e0d\u4e00\u6837,\u4f46\u4efb\u4f55OS\u4e5f\u9003\u907f\u4e0d\u4e86\u75c5\u6bd2,\u5305\u62ecLinux. <\/P>
\n

    \u6b63\u5982\u4ee5\u4e0a\u6240\u8bf4,Linux\u4e5f\u53ef\u4ee5\u88ab\u611f\u67d3.\u5c31\u8c61WindowsNT\u6216\u8005MacOS\u8fd9\u6837\u7684\u64cd\u4f5c\u7cfb\u7edf.\u4e0d\u8bba\u662fPC\u673a\u4e0a\u7684DOS\u6216Windows,\u6216\u8005\u662fAmiga,\u90fd\u53ef\u4ee5\u521b\u9020\u51fa\u75c5\u6bd2\u4ee3\u7801.\u90a3\u4e48,\u6211\u4eec\u4e3a\u4ec0\u4e48\u4e0d\u6765\u770b\u770b\u5728Windos NT\u6216Linux\u7cfb\u7edf\u4e0a\u7684\u4e00\u4e9b\u75c5\u6bd2\u5462? <\/P>
\n

    \u4f60\u4e5f\u8bb8\u4f1a\u5947\u602a,\u4e8b\u5b9e\u4e0a\u7b2c\u4e00\u4e2a\u8ba1\u7b97\u673a\u75c5\u6bd2\u662fUnix\u75c5\u6bd2(\u6709\u53ef\u80fd\u7b2c\u4e00\u4e2a\u5c31\u662fElkCloner,\u597d\u8c61\u662f\u7f16\u5199\u4e8e1980\u52301982\u5e74\u4e4b\u95f4).FredCohen\u57284BSD\u7684VAX\u7cfb\u7edf\u4e0a\u7f16\u5199\u4e86\u4e00\u4e9b\u975e\u5e38\u65e9\u7684Unix\u75c5\u6bd2,\u4e00\u5e74\u4ee5\u540eElkCloner\u5c31\u8bde\u751f\u4e86.\u7531\u4e8eUnix\u7cfb\u7edf\u5177\u6709\u5185\u5b58\u4fdd\u62a4\u673a\u5236,\u6240\u4ee5\u4eba\u4eec\u4e0d\u592a\u76f8\u4fe1Unix\u7cfb\u7edf\u4e0a\u7684\u75c5\u6bd2\u7684\u5371\u5bb3\u6027\u4f1a\u8d85\u8fc7Windows\u548cDOS\u7cfb\u7edf,\u4f46\u4ed6\u4eec\u9519\u4e86. <\/P>
\n

    \u4e00\u4e9b\u516c\u5171\u7684\u8bef\u533a <\/FONT><\/P>
\n

    \u4e00\u4e2a\u6700\u5927\u7684\u8bef\u533a\u5c31\u662f\u5f88\u591a\u9ad8\u6027\u80fd\u7684\u5b89\u5168\u7cfb\u7edf\u5bf9\u75c5\u6bd2\u8513\u5ef6\u7684\u9884\u9632.\u56e0\u4e3a\u6211\u4eec\u662f\u5229\u7528DOS\u7cfb\u7edf\u548c\u5b83\u672c\u8eab\u5e76\u4e0d\u5b58\u5728\u4efb\u4f55\u5185\u5b58\u4fdd\u62a4\u673a\u5236\u548c\u6570\u636e\u4fdd\u62a4\u673a\u5236\uff0c\u6211\u4eec\u8ba4\u4e3a\u75c5\u6bd2\u53ef\u4ee5\u5b8c\u5168\u63a7\u5236\u8ba1\u7b97\u673a\u7684\u6240\u6709\u8d44\u6e90.\u662f\u7684,\u4ed6\u4eec\u4f1a\u5f88\u8f7b\u6613\u7684\u79f0\u4e3aDOS\u548c\u7b80\u5355\u7684Windows\u64cd\u4f5c\u7cfb\u7edf\u7684\u5b8c\u5168\u63a7\u5236\u7528\u6237.\u6ca1\u6709\u5185\u5b58\u4fdd\u62a4\u673a\u5236\u548c\u6570\u636e\u4fdd\u62a4\u673a\u5236,\u8ba1\u7b97\u673a\u75c5\u6bd2\u53ef\u4ee5\u593a\u53d6\u6240\u6709\u7684\u8ba1\u7b97\u673a\u63a7\u5236\u6743.\u76f8\u5bf9\u6765\u8bf4,WindowsNT\u548cUnix\u7cfb\u7edf\u662f\u975e\u5e38\u9ad8\u7ea7\u7684\u4fdd\u62a4\u673a\u5236\u7684\u7cfb\u7edf.\u8fd9\u53ef\u4ee5\u9884\u9632\u5927\u591a\u6570\u7684\u75c5\u6bd2\u7684\u4f20\u67d3,\u4f46\u4e0d\u662f\u6240\u6709\u7684.\u5f53\u4e00\u4e2a\u7528\u6237\u4ee5root\u6216administrator\u7684\u8eab\u4efd\u6765\u64cd\u4f5c\u7684\u65f6\u5019,\u8fd9\u4e9b\u7cfb\u7edf\u7684\u4fdd\u62a4\u673a\u5236\u5b9e\u9645\u4e0a\u662f\u505c\u6b62\u4e86\u7684.\u4e00\u4e2a\u8bbe\u8ba1\u7684\u5f88\u5de7\u5999\u7684\u75c5\u6bd2\u53ef\u4ee5\u5229\u7528\u81ea\u5df1\u7684\u65b9\u6cd5\u6765\u627e\u5230\u6587\u4ef6\u7cfb\u7edf\u4e0a\u7684\u6bcf\u4e2a\u6587\u4ef6;NT ownership\u6216\u8005ACL\u673a\u5236\u90fd\u6ca1\u6709\u5f88\u597d\u7684\u91cd\u89c6\u8fd9\u4e2a\u95ee\u9898. <\/P>
\n

    \u53e6\u4e00\u4e2a\u8bef\u533a\u5c31\u662f\u8ba4\u4e3aLinux\u7cfb\u7edf\u5c24\u5176\u53ef\u4ee5\u9632\u6b62\u75c5\u6bd2\u7684\u611f\u67d3,\u56e0\u4e3aLinux\u7684\u7a0b\u5e8f\u90fd\u6765\u81ea\u4e8e\u6e90\u4ee3\u7801,\u4e0d\u662f\u4e8c\u8fdb\u5236\u683c\u5f0f.\u8fd9\u624d\u5e94\u8be5\u503c\u5f97\u91cd\u89c6,\u56e0\u4e3a\u6bd5\u7adf\u53ea\u6709\u6781\u5c11\u6570\u7684\u4eba(\u751a\u81f3\u7ba1\u7406\u5458)\u624d\u6709\u8db3\u591f\u7684\u80fd\u529b\u6765\u4ece\u6e90\u4ee3\u7801\u4e2d\u53d1\u73b0\u75c5\u6bd2\u4ee3\u7801,\u800c\u4e14\u8fd9\u662f\u4e00\u4e2a\u76f8\u5f53\u8017\u8d39\u65f6\u95f4\u548c\u7cbe\u529b\u7684\u5de5\u4f5c.\u4e00\u822c\u7684\u7528\u6237\u4e60\u60ef\u4e8e\u7528\u4e8c\u8fdb\u5236\u683c\u5f0f\u7684\u6587\u4ef6\u6765\u4ea4\u6d41,\u56e0\u4e3a\u4ed6\u4eec\u4e0d\u60f3\u5728\u4f7f\u7528\u8fd9\u4e9b\u7a0b\u5e8f\u7684\u65f6\u5019\u8fd8\u8981\u5f88\u7e41\u7410\u7684\u6267\u884c\u8bf8\u5982make config;make\u4e4b\u7c7b\u7684\u547d\u4ee4,\u4ed6\u4eec\u559c\u6b22\u5f88\u7b80\u5355\u7684\u8fd0\u884c\u7a0b\u5e8f.\u6240\u6709\u7684\u8fd9\u4e9b\u539f\u56e0\u5c31\u7ed9\u4e86Unix\u7cfb\u7edf\u4e0a\u7684\u75c5\u6bd2\u6709\u8db3\u591f\u7684\u7a7a\u95f4\u6765\u8bbf\u95ee\u548c\u64cd\u63a7\u7cfb\u7edf. <\/P>
\n

    \u7b2c\u4e09\u4e2a\u8bef\u533a\u5c31\u662f\u8ba4\u4e3aUnix\u7cfb\u7edf\u662f\u7edd\u5bf9\u5b89\u5168\u7684,\u56e0\u4e3a\u5b83\u5177\u6709\u5f88\u591a\u4e0d\u540c\u7684\u5e73\u53f0,\u800c\u4e14\u6bcf\u4e2a\u7248\u672c\u7684Unix\u7cfb\u7edf\u6709\u5f88\u5927\u7684\u4e0d\u4e00\u6837.\u4f46\u662f\u73b0\u5728\u4e0d\u80fd\u8fd9\u6837\u770b\u4e86.\u73b0\u5728\u7684\u75c5\u6bd2\u90fd\u7528\u6807\u51c6C\u6765\u7f16\u5199\u4ee5\u9002\u5e94\u4efb\u4f55\u7c7bUnix\u64cd\u4f5c\u7cfb\u7edf,\u5e76\u4e14\u4ed6\u4eec\u53ef\u4ee5\u7528make\u7a0b\u5e8f\u6765\u8de8\u5e73\u53f0\u7f16\u8bd1.\u60f3\u60f3\u90a3\u4e2aMorris\u5199\u7684internet\u7684\u8815\u866b\u75c5\u6bd2\u5229\u7528\u7684\u5c31\u662f\u8fd9\u9879\u6280\u672f.\u5e76\u4e14\u62e5\u6709\u6807\u51c6\u7684ELF\u4e8c\u8fdb\u5236\u683c\u5f0f\u548c\u5e93\u6587\u4ef6.  <\/P>
\n

    Shell\u811a\u672c <\/FONT><\/P>
\n

    \u6211\u4eec\u9762\u4e34\u7684\u7b2c\u4e00\u4e2a\u95ee\u9898\u5c31\u662f\u5982\u4f55\u4f20\u64ad\u7684\u95ee\u9898,\u8fd9\u662f\u5929\u751f\u5177\u6709\u7684\u95ee\u9898,\u81f3\u5c11\u5728Unix\u7cfb\u7edf\u4e0a\u662f\u5982\u6b64,\u6211\u4eec\u9700\u8981\u60f3\u529e\u6cd5\u4f7f\u5404\u4e2a\u5e73\u53f0\u517c\u5bb9.\u6240\u4ee5\u6211\u4eec\u9996\u5148\u60f3\u5230\u7684\u662f:shell\u811a\u672c\u8bed\u8a00.shell\u5728\u4e0d\u540c\u7684Unix\u7cfb\u7edf\u4e0a\u9762\u7684\u5dee\u522b\u5f88\u5c0f.\u6240\u4ee5FredCohen\u5728\u4ed6\u7684\u4e66:\u5165\u4fb5\u8005,\u8815\u866b\u548c\u75c5\u6bd2(\u53d1\u8868\u4e8e1990\u5e74)\u5199\u5230:”\u5728unix\u7684\u547d\u4ee4\u89e3\u91ca\u8bed\u8a00\u4e2d,\u75c5\u6bd2\u4ee3\u7801\u53ef\u4ee5\u88ab\u5199\u5230200\u4e2a\u5b57\u8282\u4e4b\u5185”.\u4e5f\u8bb8\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u4ed6\u7684\u8bdd\u6765\u5199 \u4e00\u4e2aman page\u7684\u75c5\u6bd2\u811a\u672c,\u53ef\u4ee5\u7528\u6765\u64cd\u4f5c\u6587\u4ef6\u548c\u53ef\u6267\u884c\u7a0b\u5e8f.\u8fd9\u548c\u5b8f\u75c5\u6bd2\u975e\u5e38\u76f8\u50cf.man page\u7684 <\/P>
\n

    \u75c5\u6bd2\u4e0d\u4f1a\u8513\u5ef6\u5230\u522b\u7684\u7cfb\u7edf\u4e0a,\u9664\u975e\u4f60\u6709\u4e3a\u522b\u7684\u7528\u6237\u6539\u53d8man page\u7684\u683c\u5f0f\u7684\u4e60\u60ef.\u65e0\u8bba\u5982\u4f55,\u8fd9\u79cd\u75c5\u6bd2\u90fd\u662f\u4e00\u4e2a\u516c\u5171\u7684\u8de8\u7cfb\u7edf\u7684\u75c5\u6bd2.\u540c\u6837,\u4e5f\u53ef\u4ee5\u5199\u53e6\u4e2a\u4e00\u4e2a\u811a\u672c\u75c5\u6bd2\u6765\u63a7\u5236mail\u7684\u9605\u8bfb\u8005. <\/P>
\n

    \u4e66\u5199shell\u811a\u672c\u75c5\u6bd2\u662f\u4e00\u4e2a\u5f88\u7b80\u5355\u7684\u5236\u9020Unix\u75c5\u6bd2\u7684\u65b9\u6cd5.\u6211\u77e5\u9053\u80af\u5b9a\u4f1a\u6709\u5f88\u591a\u540c\u884c\u4f1a\u8bf4,\u811a\u672c\u75c5\u6bd2\u600e\u4e48\u4f1a\u662f\u771f\u6b63\u7684\u75c5\u6bd2\u5462?\u5b83\u53ea\u662f\u7528\u811a\u672c\u8bed\u8a00\u6765\u4e66\u5199\u7684\u800c\u4e0d\u662f\u7528\u6c47\u7f16.\u4f46\u662f\u5b9e\u9645\u4e0a,\u6211\u4eec\u8bc4\u5b9a\u4e00\u4e2a\u75c5\u6bd2\u662f\u75c5\u6bd2\u672c\u8eab\u53ef\u4ee5\u5728\u7cfb\u7edf\u4e0a\u4efb\u610f\u611f\u67d3\u4f20\u64ad,\u800c\u4e0d\u662f\u8fd9\u4e2a\u75c5\u6bd2\u7684\u5927\u5c0f\u6216\u8005\u7528\u4ec0\u4e48\u8bed\u8a00\u6765\u5199\u7684.\u5728USENIX1989 \u53772\u4e0a\u4f60\u53ef\u4ee5\u770b\u5230Tom Duff\u548cM. Douglas McIlroy\u7684\u811a\u672c\u75c5\u6bd2\u4ee3\u7801.shell\u811a\u672c\u75c5\u6bd2\u7684\u5371\u5bb3\u6027\u4e0d\u4f1a\u5f88\u5927\u5e76\u4e14\u5b83\u672c\u8eab\u6781\u6613\u88ab\u7834\u574f,\u56e0\u4e3a\u5b83\u662f\u4ee5\u660e\u6587\u65b9\u5f0f\u7f16\u5199\u5e76\u6267\u884c\u7684,\u4efb\u4f55\u7528\u6237\u548c\u7ba1\u7406\u5458\u90fd\u53ef\u4ee5\u53d1\u89c9\u5b83\u7684\u4ee3\u7801.\u4f46\u662f,\u6211\u60f3\u5927\u591a\u6570\u7684\u7528\u6237\u90fd\u4e0d\u4f1a\u7406\u89e3\u4e00\u4e0b\u4ee3\u7801\u7684\u5427: <\/P>
\n

    for %%f in (*.bat) do copy %%f + bfv.bat <\/P>
\n

    \u901a\u5e38\u4e00\u4e2a\u7528\u6237\u4f1a\u6df1\u4fe1\u4e0d\u7591\u7684\u53bb\u6267\u884c\u4efb\u4f55\u811a\u672c,\u800c\u4e14\u4e0d\u4f1a\u8fc7\u95ee\u8be5\u811a\u672c\u7684\u7531\u6765.\u8fd9\u6837,\u8fd9\u4e9b\u7528\u6237\u90fd\u6210\u4e3a\u75c5\u6bd2\u7684\u76ee\u6807\u4e86;\u8fd9\u4e9b\u90fd\u662f\u7528\u6237\u7684\u610f\u8bc6\u95ee\u9898,\u8fd9\u6837\u662f\u6ca1\u529e\u6cd5\u907f\u514d\u75c5\u6bd2\u7684\u5165\u4fb5\u7684,\u6240\u4ee5\u6211\u4eec\u7684\u7528\u6237\u9700\u8981\u5927\u5927\u52a0\u5f3a\u5bf9\u8fd9\u4e9b\u75c5\u6bd2\u7684\u9632\u8303\u610f\u8bc6. <\/P>
\n

    \u8815\u866b <\/FONT><\/P>
\n

    \u53e6\u5916\u7684\u4e00\u4e2a\u5f71\u54cd\u5e7f\u6cdb\u7684\u6280\u672f\u5c31\u662f\u8815\u866b,\u60f3\u8c61\u4e00\u4e0bMorris\u8815\u866b:\u5229\u7528\u653b\u51fb\u7a0b\u5e8f–\u4e00\u822c\u8fd9\u4e9b\u653b\u51fb\u7a0b\u5e8f\u90fd\u662f\u5df2\u7ecf\u5b58\u5728\u7684\u6280\u672f.\u8fd9\u4e2a\u8815\u866b\u5229\u7528\u4e00\u4e2asendmail\u7a0b\u5e8f\u5df2\u5b58\u5728\u7684\u4e00\u4e2a\u6f0f\u6d1e\u6765\u83b7\u53d6\u5176\u5b83\u673a\u5668\u7684\u63a7\u5236\u6743.\u75c5\u6bd2\u4e00\u822c\u4f1a\u5229\u7528rexec,fingerd\u6216\u8005\u53e3\u4ee4\u731c\u89e3\u6765\u5c1d\u8bd5\u8fde\u63a5.\u5728\u6210\u529f\u5165\u4fb5\u4e4b\u540e,\u5b83\u4f1a\u7f16\u8bd1\u5728\u76ee\u6807\u673a\u5668\u4e0a\u7f16\u8bd1\u6e90\u4ee3\u7801\u5e76\u4e14\u6267\u884c\u5b83.\u800c\u4e14\u4f1a\u6709\u4e00\u4e2a\u7a0b\u5e8f\u6765\u4e13\u95e8\u8d1f\u8d23\u9690\u85cf\u81ea\u5df1\u7684\u811a\u5370.Internet\u7684\u8815\u866b\u75c5\u6bd2\u4e00\u822c\u90fd\u662f\u5229\u7528\u5df2\u77e5\u7684\u653b\u51fb\u7a0b\u5e8f\u53bb\u83b7\u5f97\u76ee\u6807\u673a\u7684\u7ba1\u7406\u5458\u6743\u9650.\u4f46\u662f\u8815\u866b\u7684\u751f\u547d\u4e5f\u662f\u5f88\u77ed\u6682\u7684,\u5f53\u8be5\u75c5\u6bd2\u6240\u5229\u7528\u7684\u6f0f\u6d1e\u88ab\u4fee\u8865\u7684\u8bdd,\u90a3\u4e48\u8be5\u8815\u866b\u4e5f\u5c31\u5931\u53bb\u5b83\u7684\u4f5c\u7528\u4e86,\u56e0\u4e3a\u4ed6\u4eec\u9700\u8981\u5229\u7528exploit\u8fd9\u4e2a\u5a92\u4ecb\u6765\u8fdb\u884c\u81ea\u8eab\u7684\u590d\u5236.\u800cexploit\u53c8\u662f\u53ea\u9488\u5bf9\u7279\u5b9a\u7248\u672c\u7684\u7279\u5b9a\u7a0b\u5e8f\u624d\u4f1a\u6709\u6548\u7684,\u6240\u4ee5\u8815\u866b\u7684\u8de8\u5e73\u53f0\u80fd\u529b\u5f88\u5dee,\u65f6\u6548\u6027\u4e5f\u5f88\u5f31. <\/P>
\n


    \u6b3a\u9a97\u5e93\u51fd\u6570 <\/FONT><\/P>
\n

    \u6211\u4eec\u53ef\u4ee5\u611a\u5f04\u90a3\u4e9b\u6bd4\u8f83\u50bb\u7684\u7528\u6237.\u5982\u679c\u4f60\u5229\u7528LD_PRELOAD\u73af\u5883\u53d8\u91cf\u6765\u6349\u5f04\u4ed6,\u4f60\u53ef\u4ee5\u8ba9\u4ed6\u6267\u884c\u4f60\u81ea\u5df1\u7684\u4ee3\u7801,\u4f60\u5df2\u7ecf\u5229\u7528LD_PRELOAD\u73af\u5883\u53d8\u91cf\u628a\u6807\u51c6\u7684\u5e93\u51fd\u6570\u66ff\u6362\u6210\u4e86\u4f60\u81ea\u5df1\u7684\u7a0b\u5e8f.\u633a\u6709\u610f\u601d\u5427?LD_PRELOAD\u5e76\u4e0d\u662flinux\u7cfb\u7edf\u7279\u6709\u7684\u5e76\u4e14\u5b83\u4e00\u822c\u7528\u5728\u4e00\u4e9b\u5e94\u7528\u7a0b\u5e8f(\u6bd4\u5982\u8001\u7248\u672c\u7684StarOffice\u9700\u8981\u8fd0\u884c\u5728\u8f83\u65b0\u7248\u672c\u7684Redhat\u7cfb\u7edf\u4e0a)\u5fc5\u987b\u7528\u4ed6\u4eec\u81ea\u5df1\u7684(\u6216\u8005\u6bd4\u8f83\u8001\u7684\u7248\u672c,\u6216\u8005\u4fee\u6539\u8fc7\u7684)\u5e93\u51fd\u6570,\u56e0\u4e3a\u5728\u5b89\u88c5\u7684\u65f6\u5019\u6ca1\u6709\u6ee1\u8db3\u4ed6\u4eec\u7684\u9700\u6c42.Quantum(Staog\u75c5\u6bd2\u7684\u4f5c\u8005)\u5728Unix\u75c5\u6bd2\u7684\u90ae\u4ef6\u5217\u8868\u91cc\u9762\u63d0\u4f9b\u4e86\u8fd9\u4e9b\u4ee3\u7801,\u6211\u505a\u4e86\u4fee\u6539,\u4e5f\u662f\u4e3a\u4e86\u4fbf\u4e8e\u5927\u5bb6\u7406\u89e3: <\/P>
\n


\n
\n
\n
\n
————————tryld.c————————————
\nextern int __open(char *, int, int);
\nextern int execv(char *, char *[], char *envp[]); <\/p>\n
int open(char *path, int flags,
\nint mode){
\nprintf(“open: %s
\n“, path);
\nreturn __open(path, flags, mode);
\n} <\/p>\n
\/* \u6ce8\u610f\u8fd9\u91cc,\u539f\u6765\u5b83\u653e\u5f03\u4e86envp\u53c2\u6570,\u8fd9\u6837\u4f1a…:(?!
\n\u5475\u5475,\u6240\u4ee5\u6211\u4fee\u6539\u4e86\u4e00\u4e0b,\u5f71\u54cd\u4e0d\u5927:)*\/
\nint execve(char *path, char *args[],
\nchar *envp[]){
\nprintf(“execve: %s
\n“, path);
\nreturn execv(path, args, envp);
\n}
\n——————————————————————- <\/p>\n
————————main.c————————————-
\n\/*test only,by e4gle*\/
\n#include
\n#include
\n#include
\n#include <\/p>\n
main()
\n{
\nint fd;
\nexecve(“\/bin\/date”,””,NULL);
\nif(fd=open(“\/etc\/inittab”,O_RDONLY)!=-1)
\n{
\nfprintf(stdout,”open file succeed!
\n“);
\n}
\nelse
\nfprintf(stderr,”open error!
\n“);
\nclose(fd);
\nreturn 0;
\n}
\n——————————————————————-<\/CCID_CODE><\/PRE><\/TD><\/TR><\/TBODY><\/TABLE><\/CCID_NOBR>

    \u8fd9\u6bb5\u4ee3\u7801\u83b7\u53d6open\u548cexecv\u5e76\u4e14\u6539\u53d8\u4e86\u5b83\u4eec\u7684\u8f93\u51fa,\u597d,\u6211\u4eec\u6d4b\u8bd5\u4e00\u4e0b: <\/P>
\n

\n
\n
\n
\n
[e4gle@redhat62 elf]$ gcc -o main main.c
\n[e4gle@redhat62 elf]$ .\/main
\nopen file succeed! <–\u8bc1\u660e\u6211\u4eec\u6253\u5f00\u6587\u4ef6\u6210\u529f\u4e86,open\u8c03\u7528\u6b63\u5e38\u5de5\u4f5c
\n[e4gle@redhat62 elf]$ ldd -v -r .\/main
\nlibc.so.6 => \/lib\/libc.so.6 (0x4001c000)
\n\/lib\/ld-linux.so.2 => \/lib\/ld-linux.so.2 (0x40000000) <\/p>\n
Version information:
\n.\/main:
\nlibc.so.6 (GLIBC_2.0) => \/lib\/libc.so.6
\n\/lib\/libc.so.6:
\nld-linux.so.2 (GLIBC_2.1.1) => \/lib\/ld-linux.so.2
\nld-linux.so.2 (GLIBC_2.1) => \/lib\/ld-linux.so.2
\nld-linux.so.2 (GLIBC_2.0) => \/lib\/ld-linux.so.2
\n\/*\u8ddf\u8e2a\u4e00\u4e0b\u5e93\u51fd\u6570\u7684\u5229\u7528,\u90fd\u662fglibc\u7684\u6807\u51c6\u5e93\u51fd\u6570,solaris\u91cc\u9762\u662fsotruss,\u6211\u4e2a\u4eba\u8ba4\u4e3asotruss
\n\u6bd4\u8f83\u597d\u7528:)*\/
\n[e4gle@redhat62 elf]$ gcc -shared -o tryld tryld.c
\n[e4gle@redhat62 elf]$ export LD_PRELOAD=.\/tryld <–\u7528\u6211\u4eec\u81ea\u5df1\u7684lib
\n[e4gle@redhat62 elf]$ .\/main
\nexecve: \/bin\/date
\nopen: \/etc\/inittab
\nopen file succeed!
\n\/*\u6ce8\u610f!\u4e0d\u4e00\u6837\u4e86\u5427?\u5df2\u7ecf\u5728\u7528\u6211\u4eec\u81ea\u5df1\u7684open\u548cexecve\u4e86,\u5475\u5475:)*\/<\/CCID_CODE><\/PRE><\/TD><\/TR><\/TBODY><\/TABLE><\/CCID_NOBR>
    \u4ee5\u4e0a\u4ec5\u4ec5\u662f\u4e2a\u6d4b\u8bd5\u4ee3\u7801\u5e76\u4e14\u6ca1\u6709\u4efb\u4f55\u5371\u5bb3\u6027,\u4f46\u662f\u5b83\u8db3\u4ee5\u8bf4\u660e\u6211\u4eec\u5229\u7528\u6b3a\u9a97\u51fd\u6570\u5e93\u6765\u653b\u51fb\u7a0b\u5e8f\u7684\u539f\u7406. <\/P>
\n
    \u5185\u6838\u7ea7\u7684\u4f20\u64ad <\/FONT><\/P>
\n
\u8fd9\u91cc\u6211\u4eec\u79f0\u4f5c”\u5185\u6838\u7ea7\u522b\u7684\u75c5\u6bd2”,\u75c5\u6bd2\u53ef\u4ee5\u4f20\u67d3\u5185\u6838\u6620\u50cf,\u8fd9\u6837\u75c5\u6bd2\u53ef\u4ee5\u63a7\u5236\u7cfb\u7edf\u7684\u65b9\u65b9\u9762\u9762.\u4f46\u662f\u8fd9\u79cd\u75c5\u6bd2\u6280\u672f\u76ee\u524d\u5c1a\u5904\u4e8e\u7406\u8bba\u9636\u6bb5,\u5e76\u6ca1\u6709\u771f\u6b63\u5b9e\u73b0,\u4f46\u5e76\u4e0d\u4ee3\u8868\u4ee5\u540e\u90fd\u4e0d\u4f1a\u51fa\u73b0. <\/P>
\n
    \u4e0e\u5e73\u53f0\u517c\u5bb9\u7684\u75c5\u6bd2 <\/FONT><\/P>
\n
    \u5982\u679c\u6211\u4eec\u7528\u6807\u51c6C\u6765\u4e66\u5199\u75c5\u6bd2\u4ee3\u7801\u7684\u8bdd,\u5404\u79cd\u4e0d\u540c\u4f53\u7cfb\u7684Unix\u7cfb\u7edf\u5bf9\u4e8e\u6211\u4eec\u6765\u8bf4\u53d8\u5316\u4e0d\u5927.\u6211\u4eec\u53ea\u9700\u8981\u5bf9\u65b9\u8ba1\u7b97\u673a\u6709\u4e00\u4e2aC\u7f16\u8bd1\u5668.\u8fd9\u6837\u7684\u75c5\u6bd2\u53ef\u4ee5\u5f88\u8f7b\u6613\u7684\u6269\u6563,\u5229\u7528\u666e\u901a\u7528\u6237\u7684.rhosts\u6587\u4ef6\u8fd9\u79cd\u5c0f\u6280\u4fe9\u5c31\u53ef\u4ee5\u505a\u5230.\u5047\u5982\u6ca1\u6709exploits(\u662f\u6709\u53ef\u80fd\u7684,\u56e0\u4e3a\u75c5\u6bd2\u662f\u8de8\u5e73\u53f0\u7684,\u56e0\u800c\u5b83\u53ef\u4ee5\u4e0d\u501f\u52a9Exploit\u6765\u56db\u5904\u6269\u6563),\u8fd9\u79cd\u53ef\u4ee5\u8de8\u5e73\u53f0\u7684\u75c5\u6bd2\u7684\u4f20\u67d3\u9762\u662f\u975e\u5e38\u5e7f\u7684,\u800c\u4e14\u4f3c\u4e4e\u6839\u672c\u6ca1\u6709\u7ed3\u675f\u7684\u65f6\u5019. <\/P>
\n
    \u5f53\u7136,\u5f88\u591a\u75c5\u6bd2\u90fd\u8fd8\u662f\u7528\u6c47\u7f16\u6765\u7f16\u5199\u7684.\u6709\u5f88\u591a\u8457\u540d\u7684\u75c5\u6bd2,\u4f46\u4e0d\u662f\u7b2c\u4e00\u4e2aLinux\u75c5\u6bd2Bliss,\u7b2c\u4e00\u6b21\u53d1\u8868\u4e8e1997\u5e74.Bliss\u4f20\u67d3ELF\u683c\u5f0f\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6,\u4f46\u662f\u5e76\u6ca1\u6709\u592a\u591a\u7684\u4f24\u5bb3.\u5b83\u751a\u81f3\u53ef\u4ee5\u5229\u7528\u88ab\u611f\u67d3\u6587\u4ef6\u7684–bliss-disinfect-files-please\u53c2\u6570\u6765\u5378\u8f7d.\u5047\u5982\u4f60\u9700\u8981\u5728\u4f60\u7684\u6587\u4ef6\u91cc\u67e5\u627eBliss,\u6ce8\u610f\u4ee5\u4e0b\u5b57\u6bb5: <\/P>
\n
    E8ABD8FFFFC200003634 65643134373130363532 <\/P>
\n
    \u6700\u65e9\u7684Linux\u75c5\u6bd2\u662fStaog,\u6bd4Bliss\u65e9\u534a\u5e74.\u5b83\u7528\u6c47\u7f16\u4e66\u5199\u5e76\u4e14\u5229\u7528\u4e09\u4e2a\/dev\/kmem\u7684exploits\u6765\u83b7\u5f97\u7684\u7279\u6743,\u5b83\u53ef\u4ee5\u611f\u67d3\u4efb\u4f55\u6587\u4ef6\u5e76\u4e14\u53ef\u4ee5\u4f20\u64ad. \u5b83\u7684\u5173\u952e\u5b57\u6bb5: <\/P>
\n
    215B31C966B9FF0131C0 884309884314B00FCD80 <\/P>
\n
    \u5f53\u6211\u4eec\u5229\u7528ELF\u683c\u5f0f\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\u6765\u505a\u75c5\u6bd2:\u8fd9\u79cd\u75c5\u6bd2\u88ab\u8a89\u4e3a\u8ba1\u7b97\u673a\u75c5\u6bd2\u4e2d\u7684\u6807\u51c6\u6a21\u5f0f–\u4ed6\u4eec\u7528\u6c47\u7f16\u7f16\u5199\u5e76\u4e14\u5b83\u4eec\u901a\u8fc7\u53ef\u6267\u884c\u7a0b\u5e8f\u611f\u67d3,\u5f88\u8c61\u5178\u578b\u7684DOS\u4e0b\u7684\u75c5\u6bd2.\u53ef\u4ee5\u901a\u8fc7\u5f80elf\u6587\u4ef6\u7684\u6587\u672c\u6bb5\u4e4b\u540e\u7684\u586b\u5145\u533a\u589e\u52a0\u4ee3\u7801\u6765\u611f\u67d3ELF\u6587\u4ef6,\u641c\u7d22\u76ee\u5f55\u6811\u4e2d\u6587\u4ef6\u7684ET_EXEC\u548cET_DYN\u6807\u8bb0\u770b\u770b\u662f\u5426\u88ab\u9690\u85cf(\u8fd9\u4e9b\u4f9d\u9760\u7ba1\u7406\u5458\u81ea\u8eab\u7684\u7ecf\u9a8c). <\/P>
\n
    \u5f53\u7136,\u5728Linux\u7cfb\u7edf\u4e0b\u5b9e\u73b0\u8fd9\u79cd\u75c5\u6bd2\u5e76\u4e0d\u592a\u5bb9\u6613.\u4e00\u4e2a\u75c5\u6bd2\u611f\u67d3\u7684\u6587\u4ef6\u5c5e\u4e8e\u662f\u666e\u901a\u7528\u6237\u6743\u9650\u7684\u8bdd,\u90a3\u4e48\u75c5\u6bd2\u6240\u5f97\u5230\u7684\u6743\u9650\u5f53\u7136\u4e5f\u5c31\u53ea\u6709\u666e\u901a\u7528\u6237\u6743\u9650(\u5e76\u4e14\u75c5\u6bd2\u4e0d\u4f1a\u5229\u7528Exploit\u6765\u63d0\u5347\u6743\u9650),\u53ea\u80fd\u5bf9\u8be5\u7528\u6237\u6743\u9650\u7ea7\u522b\u7684\u6587\u4ef6\u548c\u6570\u636e\u9020\u6210\u5371\u5bb3.\u4f46\u662f\u5f53\u4e00\u4e2a\u75c5\u6bd2\u611f\u67d3\u4e86\u4e00\u4e2aroot\u6743\u9650\u7684\u6587\u4ef6\u7684\u8bdd,\u90a3\u4e48\u5b83\u5c31\u53ef\u4ee5\u63a7\u5236\u7cfb\u7edf\u7684\u4e00\u5207\u4e86. <\/P>
\n
    \u6211\u4eec\u5b89\u5168\u4e48? <\/FONT><\/P>
\n
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