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TITLE:
TYPO3 Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA45557

VERIFY ADVISORY:
Secunia.com
https://secunia.com/advisories/45557/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=45557

RELEASE DATE:
2011-08-08

DISCUSS ADVISORY:
https://secunia.com/advisories/45557/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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https://secunia.com/advisories/45557/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=45557

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 * AUTOMATED SCANNING

https://secunia.com/vulnerability_scanning/personal/
https://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Multiple vulnerabilities have been reported in TYPO3, which can be
exploited by malicious users to bypass certain security restrictions,
conduct script insertion attacks, disclose system information, and
delete arbitrary files and by malicious people to enumerate user
accounts, bypass certain security restrictions, and conduct
cross-site scripting attacks.

1) Certain unspecified input is not properly sanitised before being
returned to the user. This can be exploited to execute arbitrary HTML
and script code in a user's browser session in context of an affected
site.

Successful exploitation of this vulnerability requires that the
"realurl" extension is not used or that its configuration parameter
"doNotRawUrlEncodeParameterNames" is set to "TRUE".

2) The application returns different HTTP responses depending on
whether an unsuccessful login attempt is performed with a valid or
invalid username.

3) An error in the backend login can be exploited to bypass the
mandatory delay upon failed authentication attempts.

4) Input passed via the username in the admin panel is not properly
sanitised before being displayed to the user. This can be exploited
to insert arbitrary HTML and script code, which will be executed in a
user's browser session in context of an affected site when the
malicious data is being viewed.

5) Input passed via link attributes in the browse_links wizard is not
properly sanitised before being displayed to the user. This can be
exploited to insert arbitrary HTML and script code, which will be
executed in a user's browser session in context of an affected site
when the malicious data is being viewed.

6) Input passed via page titles in the system extension recycler is
not properly sanitised before being displayed to the user. This can
be exploited to insert arbitrary HTML and script code, which will be
executed in a user's browser session in context of an affected site
when the malicious data is being viewed.

Successful exploitation of this vulnerability requires that the user
visits the recycler when containing a page with a malicious title.

7) Input passed via page titles in the tcemain flash message is not
properly sanitised before being displayed to the user. This can be
exploited to insert arbitrary HTML and script code, which will be
executed in a user's browser session in context of an affected site
when the malicious data is being viewed.

Successful exploitation of this vulnerability requires that the user
copies or moves a page with a malicious title.

8) An error due to an insecure configuration in css_styled_content
system extension can be exploited to read arbitrary data from TYPO3
database when using the "getText" feature on headlines of content
elements.

9) An error when handling certain serialised user input of BE editors
can be exploited to delete arbitrary files.

10) Certain unspecified input is not properly sanitised in the
"RemoveXSS()" function before being returned to the user. This can be
exploited to execute arbitrary HTML and script code in a user's
browser session in context of an affected site.

Successful exploitation of this vulnerability requires that the
victim uses Internet Explorer 6.

11) The application does not properly restrict access to ExtDirect
endpoints, which can be exploited to allow arbitrary users to consume
any available ExtDirect endpoint.

The vulnerabilities are reported in versions 4.3.11, 4.4.8, and
4.5.3. Prior versions may also be affected.

SOLUTION:
Update to version 4.3.12, 4.4.9, or 4.5.4.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits:
1) Marco Bresch
2, 3) Sebastian Schinzel
4, 5, and 7) Georg Ringer, TYPO3 Security Team.
6) Steffen Gebert, TYPO3 Core Team.
8) Mads Chr. Olesen
9) Marcus Krause, TYPO3 Security Team.
10) Vladimir Podkovanov
11) Helmut Hummel, TYPO3 Security Team.

ORIGINAL ADVISORY:
TYPO3-CORE-SA-2011-001:
https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2011-001/

OTHER REFERENCES:
Further details available in Customer Area:
https://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
https://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
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EXTENDED SOLUTION:
Further details available in Customer Area:
https://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
https://secunia.com/vulnerability_intelligence/

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