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WPS Office < 2016 - '.doc' OneTableDocumentStream Memory Corruption
[##################################################################################### Application: WPS Office Platforms: Windows Versions: Version before 2016 Author: Francis Provencher of COSIG Twitter: @COSIG_ ##################################################################################### 1) Introduction 2) Report Timeline 3) Technical details 4) POC ##################################################################################### =============== 1) Introduction =============== WPS Office (an acronym for Writer, Presentation and Spreadsheets,[2] previously known as Kingsoft Office) is an office suite for Microsoft Windows, Linux,[1] iOS[3] and Android OS,[4] developed by Zhuhai-basedChinese software developer Kingsoft. WPS Office is a suite of software which is made up of three primary components: WPS Writer, WPS Presentation, and WPS Spreadsheet. The personal basic version is free to use, but a watermark is printed on all printed output after the 30 day trial ends. (https://en.wikipedia.org/wiki/WPS_Office) ##################################################################################### ============================ 2) Report Timeline ============================ 2015-11-24: Francis Provencher from COSIG report the issue to WPS; 2015-12-06: WPS security confirm this issue; 2016-01-01: COSIG ask an update status; 2016-01-07: COSIG ask an update status; 2016-01-14: COSIG ask an update status; 2016-01-21: COSIG ask an update status; 2016-02-01: COSIG release this advisory; ##################################################################################### ============================ 3) Technical details ============================ This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of WPS. User interaction is required to exploit this vulnerability, the target must open a malicious file. The specific flaw exists within the handling of a crafted DOC files with an invalid value into the “OneTableDocumentStream” data section causing a stackbase memory corruption. ############################################################################### =========== 4) POC =========== http://protekresearchlab.com/exploits/COSIG-2016-05.doc https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/sploits/39396.zip ############################################################################### # 0day.today [2024-11-15] #