Martin Bauer gBook 1.4 Authentication index.php Login improper authentication

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Martin Bauer gBook 1.4. This affects an unknown function of the file index.php of the component Authentication. Performing a manipulation of the argument Login with the input true results in improper authentication. This vulnerability is cataloged as CVE-2002-1560. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability classified as very critical has been found in Martin Bauer gBook 1.4. This affects an unknown functionality of the file index.php of the component Authentication. The manipulation of the argument login with the input value true leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

index.php in gBook 1.4 allows remote attackers to bypass authentication and gain administrative privileges by setting the login parameter to true.

The bug was discovered 10/22/2002. The weakness was shared 03/31/2003 by Frog Man as not defined posting (Bugtraq). It is possible to read the advisory at archives.neohapsis.com. This vulnerability is uniquely identified as CVE-2002-1560. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/04/2025).

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 160 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:index.php it is possible to find vulnerable targets with Google Hacking. The commercial vulnerability scanner Qualys is able to test this issue with plugin 10967 (gBook Administrative Access Vulnerability).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (10455), Exploit-DB (21960), SecurityFocus (BID 6033†), OSVDB (8204†) and Vulnerability Center (SBV-6341†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 8.9

VulDB Base Score: 9.8
VulDB Temp Score: 8.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/22/2002 🔍
10/22/2002 +0 days 🔍
03/31/2003 +160 days 🔍
03/31/2003 +0 days 🔍
03/31/2003 +0 days 🔍
12/08/2004 +618 days 🔍
08/08/2014 +3530 days 🔍
09/04/2025 +4045 days 🔍

Sourcesinfo

Advisory: archives.neohapsis.com
Researcher: Frog Man
Status: Not defined

CVE: CVE-2002-1560 (🔍)
GCVE (CVE): GCVE-0-2002-1560
GCVE (VulDB): GCVE-100-20259
X-Force: 10455
SecurityFocus: 6033 - gBook Administrative Access Vulnerability
OSVDB: 8204 - gBook - Administrative Access Vulnerability
Vulnerability Center: 6341 - gBook 1.4 Allows Bypassing Authentication via Login Parameter, High

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/08/2014 12:18
Updated: 09/04/2025 04:53
Changes: 08/08/2014 12:18 (62), 06/04/2019 14:47 (3), 01/06/2025 21:02 (27), 09/04/2025 04:53 (3)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!