Microsoft Internet Explorer DOM Ojbect substringData() Heap Overflow Vulnerability

2008.06.13
Risk: High
Local: No
Remote: Yes
CWE: CWE-119


CVSS Base Score: 9.3/10
Impact Subscore: 10/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

ZDI-08-039: Microsoft Internet Explorer DOM Ojbect substringData() Heap Overflow Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-08-039 June 10, 2008 -- CVE ID: CVE-2008-1442 -- Affected Vendors: Microsoft -- Affected Products: Microsoft Internet Explorer -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability by Digital Vaccine protection filter ID 6155. For further product information on the TippingPoint IPS, visit: http://www.tippingpoint.com -- Vulnerability Details: This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of various Microsoft Internet Explorer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page. The specific flaw exists in the substringData() method when called on a DOM object that has been manipulated in a special way. The attack results in an exploitable heap buffer allowing for code execution under the context of the current user. -- Vendor Response: Microsoft has issued an update to correct this vulnerability. More details can be found at: http://www.microsoft.com/technet/security/Bulletin/MS08-031.mspx -- Disclosure Timeline: 2008-02-07 - Vulnerability reported to vendor 2008-06-10 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by: * Anonymous * Peter Vreugdenhil * Sebastian Apelt (webmaster (at) buzzworld (dot) org [email concealed]) -- About the Zero Day Initiative (ZDI): Established by TippingPoint, The Zero Day Initiative (ZDI) represents a best-of-breed model for rewarding security researchers for responsibly disclosing discovered vulnerabilities. Researchers interested in getting paid for their security research through the ZDI can find more information and sign-up at: http://www.zerodayinitiative.com The ZDI is unique in how the acquired vulnerability information is used. TippingPoint does not re-sell the vulnerability details or any exploit code. Instead, upon notifying the affected product vendor, TippingPoint provides its customers with zero day protection through its intrusion prevention technology. Explicit details regarding the specifics of the vulnerability are not exposed to any parties until an official vendor patch is publicly available. Furthermore, with the altruistic aim of helping to secure a broader user base, TippingPoint provides this vulnerability information confidentially to security vendors (including competitors) who have a vulnerability protection or mitigation product. Our vulnerability disclosure policy is available online at: http://www.zerodayinitiative.com/advisories/disclosure_policy/ CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, is being sent by 3Com for the sole use of the intended recipient(s) and may contain confidential, proprietary and/or privileged information. Any unauthorized review, use, disclosure and/or distribution by any recipient is prohibited. If you are not the intended recipient, please delete and/or destroy all copies of this message regardless of form and any included attachments and notify 3Com immediately by contacting the sender via reply e-mail or forwarding to 3Com at postmaster (at) 3com (dot) com. [email concealed]

References:

http://www.us-cert.gov/cas/techalerts/TA08-162B.html
http://www.zerodayinitiative.com/advisories/ZDI-08-039/
http://www.securityfocus.com/bid/29556
http://www.microsoft.com/technet/security/bulletin/ms08-031.mspx
http://www.frsirt.com/english/advisories/2008/1778
http://securitytracker.com/id?1020225
http://secunia.com/advisories/30575
http://www.securityfocus.com/archive/1/archive/1/493253/100/0/threaded


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