RealNetworks RealPlayer SMIL getAtom Remote Code Execution Vuln

2010-01-26 / 2010-01-27
Credit: ZDI
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-10-007: RealNetworks RealPlayer SMIL getAtom Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-10-007 January 21, 2010 -- CVE ID: CVE-2009-4257 -- Affected Vendors: RealNetworks -- Affected Products: RealNetworks RealPlayer -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability by Digital Vaccine protection filter ID 5907. For further product information on the TippingPoint IPS, visit: http://www.tippingpoint.com -- Vulnerability Details: This vulnerability allows attackers to execute arbitrary code on vulnerable installations of RealNetworks RealPlayer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the smlrender.dll library responsible for parsing SMIL files. A lack of proper string length checks can result in the overflow of a static heap buffer. Exploitation of this overflow can lead to arbitrary code execution under the context of the user running the process. -- Vendor Response: RealNetworks has issued an update to correct this vulnerability. More details can be found at: http://service.real.com/realplayer/security/01192010_player/en/ -- Disclosure Timeline: 2008-02-07 - Vulnerability reported to vendor 2010-01-21 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by: * Anonymous -- 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/

References:

http://www.zerodayinitiative.com/advisories/ZDI-10-007/
http://www.vupen.com/english/advisories/2010/0178
http://service.real.com/realplayer/security/01192010_player/en/
http://securitytracker.com/id?1023489
http://xforce.iss.net/xforce/xfdb/55798
http://www.securityfocus.com/bid/37880
http://www.securityfocus.com/archive/1/archive/1/509105/100/0/threaded
http://secunia.com/advisories/38218


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