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PJBlog 3.2.9.518　getwebshell 漏洞

news 来源：原创 2024/5/19 0:33:34

作者：不走的钟
版本：PJblog 3.2.9.518（2012/5/9日时为最新版本）

漏洞利用条件：

1、使用全静态模式（默认情况是全静态模式）

2、用户可以发帖（默认普通用户不能发帖，所以有点鸡肋）

漏洞描述：PJblog 3.2.9.518使用js过滤特殊字符，在使用全静态模式下，普通用户发帖即可插入asp一句话木马。

PJblog 3.2.9.518的安全还是非常不错，密码采用了sha1(pass+salt)方式，salt为6位，在这样的情况下，对注入还是非常有效，即使拿到密码也很难破解。

class/cls_logAction.asp部分代码如下：

<%
Class logArticle
………………省略………………
outIndex = outIndex & “[""A"";"&AListC&";("&clearT(AList)&")] ” & Chr(13)
outIndex = outIndex & “[""G"";"&GListC&";("&clearT(GList)&")] ” & Chr(13)
Dim CateKeys, CateItems, CateHKeys, CateHItems
CateKeys = CateDic.Keys
CateItems = CateDic.Items
CateHKeys = CateHDic.Keys
CateHItems = CateHDic.Items
For i = 0 To CateDic.Count -1
outIndex = outIndex & “["""&CateKeys(i)&""";"&CateHItems(i)&";("&clearT(CateItems(i))&")] ” & Chr(13)
Next

SaveList = SaveToFile(outIndex, “cache/listCache.asp”)

SaveToFile函数是将outIndex内容写入到cache/listCache.asp中。

blogpost.asp中调用了 logArticle，部分代码如下：

<%
……………………
Set lArticle = New logArticle
lArticle.categoryID = request.Form(“log_CateID”)
lArticle.logTitle = request.Form(“title”)
lArticle.logAuthor = memName
lArticle.logEditType = request.Form(“log_editType”)
lArticle.logIntroCustom = request.Form(“log_IntroC”)
lArticle.logIntro = request.Form(“log_Intro”)
lArticle.logWeather = request.Form(“log_weather”)
lArticle.logLevel = request.Form(“log_Level”)
lArticle.logCommentOrder = request.Form(“log_comorder”)
lArticle.logDisableComment = request.Form(“log_DisComment”)
lArticle.logIsShow = IsShow
lArticle.logIsTop = request.Form(“log_IsTop”)
lArticle.logIsDraft = request.Form(“log_IsDraft”)
lArticle.logFrom = request.Form(“log_From”)
lArticle.logFromURL = request.Form(“log_FromURL”)
lArticle.logDisableImage = request.Form(“log_disImg”)
lArticle.logDisableSmile = request.Form(“log_DisSM”)
lArticle.logDisableURL = request.Form(“log_DisURL”)
lArticle.logDisableKeyWord = request.Form(“log_DisKey”)
lArticle.logMessage = request.Form(“Message”)
lArticle.logTrackback = request.Form(“log_Quote”)
lArticle.logTags = request.Form(“tags”)
lArticle.logPubTime = request.Form(“PubTime”)
lArticle.logPublishTimeType = request.Form(“PubTimeType”)
If blog_postFile = 2 Then
lArticle.logCname = request.Form(“cname”)
lArticle.logCtype = request.Form(“ctype”)
End If
lArticle.logReadpw = pws
lArticle.logPwtips = pwtips
lArticle.logPwtitle = pwtitle
lArticle.logPwcomm = pwcomm
lArticle.logMeta = request.Form(“log_Meta”)
lArticle.logKeyWords = keyword
lArticle.logDescription = B_description
if request.form(“FirstPost”) = 1 then
lArticle.isajax = false
lArticle.logIsDraft = false
postLog = lArticle.editLog(request.Form(“postbackId”))
else
lArticle.isajax = false
postLog = lArticle.postLog
end if
Set lArticle = Nothing
%>