TYPO3 multiple vulnerabilities
Multiple vulnerabilities have been reported in TYPO3, according to Secunia. These 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.