---------------------------------------------------------------------- A new version (0.9.0.0 - Release Candidate 1) of the free Secunia PSI has been released. The new version includes many new and advanced features, which makes it even easier to stay patched. Download and test it today: https://psi.secunia.com/ Read more about this new version: https://psi.secunia.com/?page=changelog ---------------------------------------------------------------------- TITLE: Persits Software XUpload "AddFile()" Method Buffer Overflow SECUNIA ADVISORY ID: SA28660 VERIFY ADVISORY: http://secunia.com/advisories/28660/ CRITICAL: Highly critical IMPACT: System access WHERE: >From remote SOFTWARE: Persits Software XUpload 2.x http://secunia.com/product/17042/ Persits Software XUpload 3.x http://secunia.com/product/17043/ DESCRIPTION: David Kierznowski has discovered a vulnerability in Persits Software XUpload, which can be exploited by malicious people to compromise a user's system. The vulnerability is caused due to a boundary error in the Persits.XUpload.2 ActiveX control (XUpload.ocx) when processing arguments passed to the "AddFile()" method. This can be exploited to cause a stack-based buffer overflow by passing an overly-long string as argument to the affected method. Successful exploitation allows execution of arbitrary code. The vulnerability is confirmed in version 3.0.0.4 and 2.1.0.1. Other versions may also be affected. SOLUTION: Set the kill-bit for the affected ActiveX control. PROVIDED AND/OR DISCOVERED BY: David Kierznowski ORIGINAL ADVISORY: http://milw0rm.com/exploits/4987 ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/about_secunia_advisories/ Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor. ---------------------------------------------------------------------- Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org ----------------------------------------------------------------------