SB2022091322 - Multiple vulnerabilities in TYPO3
Published: September 13, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 secuirty vulnerabilities.
1) Cross-site scripting (CVE-ID: CVE-2022-36020)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data within the HTML Sanitizer. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
2) Cross-site scripting (CVE-ID: CVE-2022-36108)
The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied css input within the "f:asset.css" view helper. A remote user can execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
3) Cross-site scripting (CVE-ID: CVE-2022-36107)
The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data within the FileDumpController component when displaying files. A remote user can use a specially crafted file to execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
4) Operation on a Resource after Expiration or Release (CVE-ID: CVE-2022-36106)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to missing check for expiration time of a password reset link for backend users. A remote attacker can brute force the password reset token and perform a password reset even if the default expiry time of two hours has been exceeded.
5) Information Exposure Through Timing Discrepancy (CVE-ID: CVE-2022-36105)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to the way the web application responds when authenticating users. A remote non-authenticated attacker can observe the response time during user authentication to determine if the user account exists in the database.
Remediation
Install update from vendor's website.