CVE-2004-1018 : Détail

CVE-2004-1018

24.19%V4
Network
2004-12-08
04h00 +00:00
2017-10-09
22h57 +00:00
CVE.org
NVD
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Descriptions du CVE

Multiple integer handling errors in PHP before 4.3.10 allow attackers to bypass safe mode restrictions, cause a denial of service, or execute arbitrary code via (1) a negative offset value to the shmop_write function, (2) an "integer overflow/underflow" in the pack function, or (3) an "integer overflow/underflow" in the unpack function. NOTE: this issue was originally REJECTed by its CNA before publication, but that decision is in active dispute. This candidate may change significantly in the future as a result of further discussion.

Informations du CVE

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 10 AV:N/AC:L/Au:N/C:C/I:C/A:C nvd@nist.gov

EPSS

EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.

Score EPSS

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

Percentile EPSS

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.
EPSS First.org

Informations sur l'Exploit

Exploit Database EDB-ID : 24854

Date de publication : 2004-12-14 23h00 +00:00
Auteur : Stefan Esser
EDB Vérifié : Yes

source: https://www.securityfocus.com/bid/11964/info PHP4 and PHP5 are reported prone to multiple local and remote vulnerabilities that may lead to code execution within the context of the vulnerable process. The following specific issues are reported: A heap-based buffer overflow is reported to affect the PHP 'pack()' function call. An attacker that has the ability to make the PHP interpreter run a malicious script may exploit this condition to execute arbitrary instructions in the context of the vulnerable process. A heap-based memory disclosure vulnerability is reported to affect the PHP 'unpack()' function call. An attacker that has the ability to make the PHP interpreter run a malicious script may exploit this condition to reveal portions of the process heap. PHP safe_mode_exec_dir is reported prone to an access control bypass vulnerability. A local attacker that can manipulate the directory name from which the PHP script is called, may bypass 'safe_mode_exec_dir' restrictions by placing shell metacharacters and restricted commands into the directory name of the current directory. PHP safe_mode is reported prone to an access control bypass vulnerability. An attacker that has the ability to make the PHP interpreter run a malicious script may exploit this condition to execute commands that are otherwise restricted by PHP safe_mode. PHP is reported prone to a 'realpath()' path truncation vulnerability. The vulnerability exists due to a lack of sanitization as to whether a path has been silently truncated by the libc realpath() function or not. This may lead to remote file include vulnerabilities in some cases. The PHP function 'unserialize()' is reported prone to a memory corruption vulnerability. This corruption may be leveraged by a remote attacker that has the ability to make the PHP interpreter run a malicious script to execute arbitrary code in the context of the vulnerable process. The PHP function 'unserialize()' is also reported prone to an information disclosure vulnerability. This issue may be leveraged by a remote attacker to disclose the contents of heap memory. This may allow them to gain access to potentially sensitive information, such as database credentials. Finally, the PHP function 'unserialize()', is reported prone to an additional vulnerability. It is reported that previous versions of this function allow a malicious programmer to set references to entries of a variable hash that have already been freed. This can lead to remote memory corruption. EXAMPLE script - "Segfault": ---cut here--- <? $s = 's:9999999:"A";"'; $a = unserialize($s); print $a; ?> ---cut here--- EXAMPLE script - "Memory Dump": ---cut here--- <? // session- and stuff $secret_username="uaaaa"; $secret_password="hoschi"; // stuff // $c = $_COOKIE ['crypted_stuff'] // $c = some cookie /* simplyfied --> userinput */ $c = 's:30000:"crap";'; $userdata = unserialize($c); // // check $userdata stuff // for some reason output $userdata print $userdata . "\n is NOT valid !!\n"; // stuff ?> ---cut here---
Exploit Database EDB-ID : 24855

Date de publication : 2004-12-14 23h00 +00:00
Auteur : Slythers
EDB Vérifié : Yes

source: https://www.securityfocus.com/bid/11964/info PHP4 and PHP5 are reported prone to multiple local and remote vulnerabilities that may lead to code execution within the context of the vulnerable process. The following specific issues are reported: A heap-based buffer overflow is reported to affect the PHP 'pack()' function call. An attacker that has the ability to make the PHP interpreter run a malicious script may exploit this condition to execute arbitrary instructions in the context of the vulnerable process. A heap-based memory disclosure vulnerability is reported to affect the PHP 'unpack()' function call. An attacker that has the ability to make the PHP interpreter run a malicious script may exploit this condition to reveal portions of the process heap. PHP safe_mode_exec_dir is reported prone to an access control bypass vulnerability. A local attacker that can manipulate the directory name from which the PHP script is called, may bypass 'safe_mode_exec_dir' restrictions by placing shell metacharacters and restricted commands into the directory name of the current directory. PHP safe_mode is reported prone to an access control bypass vulnerability. An attacker that has the ability to make the PHP interpreter run a malicious script may exploit this condition to execute commands that are otherwise restricted by PHP safe_mode. PHP is reported prone to a 'realpath()' path truncation vulnerability. The vulnerability exists due to a lack of sanitization as to whether a path has been silently truncated by the libc realpath() function or not. This may lead to remote file include vulnerabilities in some cases. The PHP function 'unserialize()' is reported prone to a memory corruption vulnerability. This corruption may be leveraged by a remote attacker that has the ability to make the PHP interpreter run a malicious script to execute arbitrary code in the context of the vulnerable process. The PHP function 'unserialize()' is also reported prone to an information disclosure vulnerability. This issue may be leveraged by a remote attacker to disclose the contents of heap memory. This may allow them to gain access to potentially sensitive information, such as database credentials. Finally, the PHP function 'unserialize()', is reported prone to an additional vulnerability. It is reported that previous versions of this function allow a malicious programmer to set references to entries of a variable hash that have already been freed. This can lead to remote memory corruption. https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/24855.zip

Products Mentioned

Configuraton 0

Php>>Php >> Version To (excluding) 4.3.10

Configuraton 0

Canonical>>Ubuntu_linux >> Version 4.10

Références

http://www.redhat.com/support/errata/RHSA-2005-032.html
Tags : vendor-advisory, x_refsource_REDHAT
http://www.mandriva.com/security/advisories?name=MDKSA-2005:072
Tags : vendor-advisory, x_refsource_MANDRAKE
http://www.php.net/release_4_3_10.php
Tags : x_refsource_CONFIRM
http://www.osvdb.org/12411
Tags : vdb-entry, x_refsource_OSVDB
http://www.redhat.com/support/errata/RHSA-2005-816.html
Tags : vendor-advisory, x_refsource_REDHAT
http://www.mandriva.com/security/advisories?name=MDKSA-2004:151
Tags : vendor-advisory, x_refsource_MANDRAKE
https://bugzilla.fedora.us/show_bug.cgi?id=2344
Tags : vendor-advisory, x_refsource_FEDORA
http://www.securityfocus.com/archive/1/384920
Tags : mailing-list, x_refsource_BUGTRAQ
http://www.securityfocus.com/advisories/9028
Tags : vendor-advisory, x_refsource_HP
http://www.securityfocus.com/bid/12045
Tags : vdb-entry, x_refsource_BID
http://marc.info/?l=bugtraq&m=110314318531298&w=2
Tags : mailing-list, x_refsource_BUGTRAQ
https://www.ubuntu.com/usn/usn-99-1/
Tags : vendor-advisory, x_refsource_UBUNTU