CVE-2008-3573

Pligg CMS 9.9.5 - 'CAPTCHA' Registration Automation Security Bypass

Severity Score

9.1

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The CAPTCHA implementation in (1) Pligg 9.9.5 and possibly (2) Francisco Burzi PHP-Nuke 8.1 provides a critical random number (the ts_random value) within the URL in the SRC attribute of an IMG element, which allows remote attackers to pass the CAPTCHA test via a calculation that combines this value with the current date and the HTTP User-Agent string.

La implementación CAPTCHA en (1) Pligg 9.9.5 y posiblemente (2) Francisco Burzi PHP-Nuke 8.1, proporciona un número aleatorio crítico (el valor del ts_random) dentro de la URL en el traibuto SRC de un elemento IMG, lo que permite a atacantes remotos evitar el test CAPTCHA mediante un cálculo que combina ese valor con la fecha actual y la cadena HTTP del User-Agent.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2008-08-02 First Exploit
2008-08-10 CVE Reserved
2008-08-10 CVE Published
2024-08-07 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-189: Numeric Errors
CWE-264: Permissions, Privileges, and Access Controls

CAPEC

References (4)

URL	Tag	Source
https://exchange.xforce.ibmcloud.com/vulnerabilities/44192	Vdb Entry

URL	Date	SRC
https://www.exploit-db.com/exploits/32142	2008-08-02
http://www.rooksecurity.com/blog/?p=17	2024-08-07
http://www.securityfocus.com/bid/30518	2024-08-07

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Php-nuke Search vendor "Php-nuke"		Php-nuke Search vendor "Php-nuke" for product "Php-nuke"				8.1 Search vendor "Php-nuke" for product "Php-nuke" and version "8.1"		-		Affected
Pligg Search vendor "Pligg"		Pligg Search vendor "Pligg" for product "Pligg"				9.9.5 Search vendor "Pligg" for product "Pligg" and version "9.9.5"		-		Affected