CVE-2007-1415 in PMB Services
Summary
by MITRE
Multiple PHP remote file inclusion vulnerabilities in PMB Services 3.0.13 and earlier allow remote attackers to execute arbitrary PHP code via a URL in the (1) class_path parameter to (a) includes/resa_func.inc.php (b) admin/notices/perso.inc.php, or (c) admin/quotas/main.inc.php; the (2) base_path parameter to (d) opac_css/rec_panier.php or (e) opac_css/includes/author_see.inc.php; or the (3) include_path parameter to (f) bull_info.inc.php or (g) misc.inc.php in includes/; (h) options_date_box.php, (i) options_file_box.php, (j) options_list.php, (k) options_query_list.php, or (l) options_text.php in includes/options/; (m) options.php, (n) options_comment.php, (o) options_date_box.php, (p) options_list.php, (q) options_query_list.php, or (r) options_text.php in includes/options_empr/; or (s) admin/import/iimport_expl.php, (t) admin/netbase/clean.php, (u) admin/param/param_func.inc.php, (v) admin/sauvegarde/lieux.inc.php, (w) autorites.php, (x) account.php, (y) cart.php, or (z) edit.php.
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Analysis
by VulDB Data Team • 08/27/2024
This vulnerability represents a critical remote file inclusion flaw in PMB Services version 3.0.13 and earlier, classified under CWE-829 as inclusion of code from an untrusted source. The vulnerability exists due to insufficient input validation and sanitization of user-supplied parameters that are directly used in PHP include or require statements. Attackers can exploit these weaknesses by supplying malicious URLs through various parameters including class_path, base_path, and include_path, which are then processed by the vulnerable PHP scripts without proper verification of their legitimacy.
The technical implementation of this vulnerability allows remote attackers to execute arbitrary PHP code on the target server by manipulating parameters that control file inclusion operations. When the application processes these parameters, it directly incorporates user-supplied URLs into include statements, effectively allowing attackers to load and execute remote PHP scripts hosted on external servers. This creates a pathway for attackers to inject malicious code, potentially leading to complete server compromise, data exfiltration, or further network infiltration. The vulnerability affects multiple files across different directories including includes/, admin/, opac_css/, and includes/options/, indicating a widespread issue in the application's parameter handling mechanisms.
The operational impact of this vulnerability is severe as it provides attackers with remote code execution capabilities without requiring authentication or prior access to the system. This makes it particularly dangerous for web applications that are publicly accessible. Attackers can leverage this vulnerability to establish persistent backdoors, steal sensitive data, modify application behavior, or use the compromised server as a launch point for attacking other systems. The vulnerability's presence across multiple file paths suggests that the application's security model has fundamental flaws in input validation, making it difficult to secure specific endpoints without addressing the root cause. This type of vulnerability is commonly categorized under ATT&CK technique T1059.007 for remote code execution through web shells and T1078 for legitimate credential use.
The primary mitigation strategy involves implementing strict input validation and sanitization for all parameters that are used in file inclusion operations. Applications should avoid directly using user-supplied input in include statements and instead implement whitelisting mechanisms that only allow predefined, trusted file paths. Additionally, the disable_functions directive in php.ini should be configured to prevent execution of dangerous functions like eval, exec, and system. Regular security updates and code reviews are essential to prevent similar vulnerabilities from being introduced in future versions. Organizations should also consider implementing web application firewalls to detect and block suspicious inclusion patterns, and conduct regular penetration testing to identify and remediate similar issues across their application landscape.