CVE-2008-1900 in Carbon Communities
Summary
by MITRE
option_Update.asp in Carbon Communities 2.4 and earlier allows remote attackers to edit arbitrary member information via a modified ID field.
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Analysis
by VulDB Data Team • 11/16/2017
The vulnerability identified as CVE-2008-1900 resides within the option_Update.asp component of Carbon Communities version 2.4 and earlier systems, representing a critical access control flaw that enables unauthorized remote modification of user account data. This issue stems from insufficient input validation and authentication checks within the web application's member management functionality, creating a pathway for malicious actors to manipulate the ID field parameter and subsequently alter information belonging to other users within the community platform.
The technical implementation of this vulnerability demonstrates a classic case of insufficient authorization validation where the application fails to verify whether the authenticated user possesses legitimate privileges to modify the target user account. When a user submits a request to update member information through the option_Update.asp script, the system accepts the ID parameter directly from the user input without performing proper access control verification. This allows an attacker to modify the ID field to reference another user's account, effectively bypassing the normal permission checks that should prevent unauthorized access to member data.
From an operational impact perspective, this vulnerability creates significant security risks for organizations utilizing Carbon Communities platforms, as it enables attackers to potentially modify sensitive user information including personal details, account settings, and potentially gain elevated privileges within the system. The flaw operates at the application layer and can be exploited remotely without requiring authentication to the target user accounts, making it particularly dangerous for community platforms where user data integrity and privacy are paramount. Security professionals should note this vulnerability aligns with CWE-285, which addresses improper authorization issues in software applications, and represents a clear violation of the principle of least privilege in system design.
The exploitation of this vulnerability typically involves crafting a malicious HTTP request that modifies the ID parameter to target a specific user account, followed by submitting updated information that the application processes without proper verification of the requesting user's authorization level. This type of attack falls under the ATT&CK technique T1078 which covers valid accounts and T1566 which covers credential access through various methods. Organizations should be particularly concerned about the potential for this vulnerability to be combined with other exploits to create more sophisticated attack vectors targeting user accounts and personal information.
Mitigation strategies for this vulnerability should include implementing proper input validation and parameter sanitization within the application code, enforcing robust access control checks before processing any member update requests, and ensuring that the system validates the authenticated user's authorization level against the target account before permitting modifications. Security measures should also include logging all member update activities for audit purposes and implementing rate limiting to prevent automated exploitation attempts. Organizations utilizing Carbon Communities should immediately upgrade to versions that address this vulnerability, as the flaw represents a fundamental security weakness that can be exploited by attackers with minimal technical expertise. Additionally, implementing proper web application firewalls and intrusion detection systems can help identify and block exploitation attempts targeting this specific vulnerability pattern.