CVE-2006-2773 in hogstorp Guestbook
Summary
by MITRE
admin/redigera/redigera2.asp in Hogstorps hogstorp Guestbook 2.0 does not verify user credentials, which allows remote attackers to edit arbitrary posts via unspecified vectors. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
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Analysis
by VulDB Data Team • 09/10/2017
The vulnerability identified as CVE-2006-2773 affects the Hogstorps hogstorp Guestbook 2.0 web application, specifically targeting the administrative functionality located at admin/redigera/redigera2.asp. This represents a critical authentication bypass flaw that fundamentally undermines the security posture of the guestbook system. The vulnerability stems from the application's failure to properly validate user credentials before granting administrative access to post modification capabilities, creating an exploitable condition that allows unauthenticated attackers to gain unauthorized administrative privileges.
The technical flaw manifests as a complete absence of authentication verification within the administrative post editing endpoint. This type of vulnerability maps directly to CWE-287, which addresses improper authentication issues in software systems. The lack of credential verification creates a path for remote attackers to manipulate guestbook entries without proper authorization, effectively bypassing the application's intended access control mechanisms. The unspecified vectors mentioned in the description suggest that the attack could potentially occur through various means including direct URL manipulation, parameter tampering, or other attack vectors that exploit the missing authentication checks.
From an operational impact perspective, this vulnerability poses significant risks to the integrity and confidentiality of guestbook data. An attacker who successfully exploits this flaw can modify, delete, or insert arbitrary posts, potentially leading to information tampering, defacement of the guestbook content, or the injection of malicious content. The vulnerability affects the fundamental security model of the application, as it allows attackers to perform administrative actions without proper authorization, potentially compromising the entire guestbook system. This type of flaw can be categorized under the ATT&CK technique T1078.004, which covers legitimate credentials, specifically focusing on the abuse of administrative access through credential bypass mechanisms.
The attack surface for this vulnerability is particularly concerning as it affects the administrative interface of the guestbook application, making it a prime target for malicious actors seeking to compromise web applications. The lack of proper authentication checks means that any user with knowledge of the administrative endpoint can potentially exploit this weakness. Security professionals should consider this vulnerability as part of broader authentication and access control assessments, particularly when evaluating legacy web applications that may contain similar credential verification gaps. The vulnerability highlights the critical importance of implementing proper authentication mechanisms and access controls in web applications, as even minor oversights in credential verification can lead to complete administrative compromise. Organizations should prioritize immediate remediation of this type of vulnerability through proper authentication implementation and regular security assessments to prevent unauthorized access to administrative functions.