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.
7.0	$0-$5k	0.00

A vulnerability was found in TikiWiki (Content Management System). It has been declared as critical. This vulnerability affects the function unserialize in the library lib/banners/bannerlib.php. The manipulation of the argument sendarticles with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

TikiWiki CMS/Groupware before 6.7 LTS and before 8.4 allows remote attackers to execute arbitrary PHP code via a crafted serialized object in the (1) cookieName to lib/banners/bannerlib.php; (2) printpages or (3) printstructures parameter to (a) tiki-print_multi_pages.php or (b) tiki-print_pages.php; or (4) sendpages, (5) sendstructures, or (6) sendarticles parameter to tiki-send_objects.php, which is not properly handled when processed by the unserialize function.

The weakness was disclosed 07/12/2012 by Egidio Romano (Website). The advisory is shared for download at info.tiki.org. This vulnerability was named CVE-2012-0911 since 01/23/2012. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1059.

A public exploit has been developed by Metasploit in Ruby and been published before and not just after the advisory. It is possible to download the exploit at securityfocus.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:lib/banners/bannerlib.php it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 61733 (TikiWiki unserialize() Function Arbitrary Code Execution), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses.

Upgrading to version 5.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (76758), Tenable (61733) and Exploit-DB (19630). The entry 61259 is pretty similar.

Productinfo

Type

• Content Management System

Name

• TikiWiki

Version

• 2.2
• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 4.0
• 4.1
• 4.2
• 5.0
• 5.1
• 5.2
• 5.3
• 6.0
• 6.1
• 6.2
• 6.3
• 6.5
• 7.0
• 7.1
• 7.2
• 8.0
• 8.1
• 8.2
• 8.3

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
ATT&CK: T1059

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Author: Metasploit
Programming Language: 🔍
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 61733
Nessus Name: TikiWiki unserialize() Function Arbitrary Code Execution
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

MetaSploit ID: tikiwiki_unserialize_exec.rb
MetaSploit Name: Tiki Wiki unserialize() PHP Code Execution
MetaSploit File: 🔍

D2Sec: Tiki Wiki CMS Groupware 8.3 RCE

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: TikiWiki 5.2
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

01/23/2012 🔍
07/04/2012 +163 days 🔍
07/04/2012 +0 days 🔍
07/09/2012 +5 days 🔍
07/09/2012 +0 days 🔍
07/12/2012 +3 days 🔍
07/12/2012 +0 days 🔍
08/30/2012 +49 days 🔍
04/22/2013 +235 days 🔍
03/23/2015 +700 days 🔍
12/06/2021 +2450 days 🔍

Sourcesinfo

Advisory: info.tiki.org
Researcher: Egidio Romano
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-0911 (🔍)
X-Force: 76758
Vulnerability Center: 39281 - TikiWiki CMS/Groupware Allows Remote PHP Code Execution via a Crafted Serialized Object in Multiple Parameters, Medium
SecurityFocus: 54298 - Tiki Wiki CMS Groupware 'unserialize()' Multiple PHP Code Execution Vulnerabilities
OSVDB: 83534

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

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/06/2021 01:23
Changes: 03/23/2015 16:50 (74), 01/29/2018 16:08 (12), 12/06/2021 01:23 (3)
Complete: 🔍

Discussion

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