CVE-2007-2647 in Monalbum
Summary
by MITRE
Static code injection vulnerability in admin/admin_configuration.php in Monalbum 0.8.7 allows remote authenticated users to inject arbitrary PHP code into the conf/config.inc.php file via the (1) gadm_pass, (2) gadm_user, (3) gcfgHote, (4) gcfgPass, (5) gcfgUser, (6) gclassement_rep, (7) gcontour, (8) gfond, (9) ggd_version, (10) ghome, (11) ghor, (12) gimg_copyright, (13) glangage, (14) gmenu_visible, (15) gmini_hasard, (16) gordre_rep, (17) gpage, (18) gracine, (19) grech_inactive, (20) grep_mini, (21) grepertoire, (22) gsite, (23) gslide, (24) gtitre, (25) guse_copyright, (26) gversion, (27) gvert, or (28) gcfgBase parameter.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 09/15/2024
The vulnerability described in CVE-2007-2647 represents a critical static code injection flaw within the Monalbum 0.8.7 web application administration interface. This vulnerability exists in the admin/admin_configuration.php file which processes user input parameters and writes them directly to the conf/config.inc.php configuration file without adequate sanitization or validation. The flaw affects multiple configuration parameters including authentication credentials, database connection details, and various display settings, creating a pathway for remote authenticated attackers to execute arbitrary PHP code within the application's context.
The technical implementation of this vulnerability stems from improper input validation and sanitization practices within the application's configuration management system. When administrators modify application settings through the web interface, the application fails to properly escape or validate user-supplied data before persisting it to the configuration file. This allows attackers who have authenticated access to the administrative interface to inject malicious PHP code through any of the 28 vulnerable parameters, including sensitive fields like gadm_pass and gcfgBase that contain authentication information. The vulnerability is classified under CWE-94 as "Improper Control of Generation of Code ('Code Injection')" and aligns with ATT&CK technique T1059.007 for PHP code injection.
The operational impact of this vulnerability is severe as it enables authenticated attackers to achieve arbitrary code execution on the target server with the privileges of the web application user. This compromise can lead to complete system takeover, data exfiltration, and persistent backdoor establishment. Attackers can inject malicious code that executes during subsequent application requests, potentially allowing them to establish reverse shells, modify application behavior, or escalate privileges. The vulnerability's impact is amplified by the fact that it requires only authenticated access, which can be achieved through credential theft, social engineering, or exploitation of other authentication vulnerabilities. The configuration file injection creates a persistent backdoor that remains active until manually removed, making detection and remediation challenging. Organizations should prioritize immediate patching or mitigation of this vulnerability as it represents a significant risk to application and system security, particularly in environments where administrative credentials may be compromised.
The vulnerability demonstrates a classic example of insufficient input sanitization in web applications, where user-controllable data is directly incorporated into executable code without proper validation or escaping mechanisms. This flaw highlights the importance of implementing proper security controls such as input validation, output encoding, and privilege separation in web application development. The attack vector requires only authenticated access to the administrative interface, making it particularly dangerous in scenarios where administrative accounts may be targeted through credential compromise or other means. Organizations should implement additional security measures including network segmentation, monitoring for unauthorized configuration changes, and regular security assessments to identify similar vulnerabilities in their web applications.