Zenas Pao-bacheca Guestbook 2.1 login.php login_ok access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
7.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Zenas Pao-bacheca Guestbook 2.1. This affects an unknown part of the file login.php. Such manipulation of the argument login_ok leads to access control. This vulnerability is listed as CVE-2009-3421. In addition, an exploit is available.

Detailsinfo

A vulnerability was found in Zenas Pao-bacheca Guestbook 2.1. It has been rated as critical. Affected by this issue is an unknown part of the file login.php. The manipulation of the argument login_ok with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. CVE summarizes:

login.php in Zenas PaoBacheca Guestbook 2.1, when register_globals is enabled, allows remote attackers to bypass authentication and gain administrative access by setting the login_ok parameter to 1.

The weakness was presented 07/28/2009 (Website). The advisory is shared for download at milw0rm.com. This vulnerability is handled as CVE-2009-3421 since 09/25/2009. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1068.

A public exploit has been developed by SirGod and been published before and not just after the advisory. The exploit is available at exploit-db.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:login.php it is possible to find vulnerable targets with Google Hacking.

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 (52100), Exploit-DB (9293), OSVDB (56757†) and Secunia (SA36023†). See VDB-50230 and VDB-50229 for similar entries. Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Author: SirGod
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/28/2009 🔍
07/28/2009 +0 days 🔍
07/28/2009 +0 days 🔍
07/29/2009 +1 days 🔍
09/25/2009 +57 days 🔍
09/25/2009 +0 days 🔍
03/18/2015 +2000 days 🔍
12/07/2024 +3552 days 🔍

Sourcesinfo

Advisory: milw0rm.com⛔
Status: Confirmed

CVE: CVE-2009-3421 (🔍)
GCVE (CVE): GCVE-0-2009-3421
GCVE (VulDB): GCVE-100-50228
X-Force: 52100 - Pao-Bacheca Guestbook login.php security bypass
Secunia: 36023
OSVDB: 56757 - Pao Bacheca Guestbook login.php login_ok Parameter Admin Authentication Bypass

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

Entryinfo

Created: 03/18/2015 15:15
Updated: 12/07/2024 20:43
Changes: 03/18/2015 15:15 (58), 12/20/2017 09:42 (5), 12/07/2024 20:43 (17)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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