CVE-2020-26229 – XML External Entity in Dashboard Widget
https://notcve.org/view.php?id=CVE-2020-26229
TYPO3 is an open source PHP based web content management system. In TYPO3 from version 10.4.0, and before version 10.4.10, RSS widgets are susceptible to XML external entity processing. This vulnerability is reasonable, but is theoretical - it was not possible to actually reproduce the vulnerability with current PHP versions of supported and maintained system distributions. At least with libxml2 version 2.9, the processing of XML external entities is disabled per default - and cannot be exploited. Besides that, a valid backend user account is needed. • https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-q9cp-mc96-m4w2 https://typo3.org/security/advisory/typo3-core-sa-2020-012 • CWE-611: Improper Restriction of XML External Entity Reference •
CVE-2020-26228 – Cleartext storage of session identifier
https://notcve.org/view.php?id=CVE-2020-26228
TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 9.5.23 and 10.4.10 user session identifiers were stored in cleartext - without processing with additional cryptographic hashing algorithms. This vulnerability cannot be exploited directly and occurs in combination with a chained attack - like for instance SQL injection in any other component of the system. Update to TYPO3 versions 9.5.23 or 10.4.10 that fix the problem described. TYPO3 es un sistema de administración de contenido web de código abierto basado en PHP. • https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-954j-f27r-cj52 https://typo3.org/security/advisory/typo3-core-sa-2020-011 • CWE-312: Cleartext Storage of Sensitive Information •
CVE-2020-26227 – Cross-Site Scripting in Fluid view helpers
https://notcve.org/view.php?id=CVE-2020-26227
TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 9.5.23 and 10.4.10 the system extension Fluid (typo3/cms-fluid) of the TYPO3 core is vulnerable to cross-site scripting passing user-controlled data as argument to Fluid view helpers. Update to TYPO3 versions 9.5.23 or 10.4.10 that fix the problem described. TYPO3 es un sistema de administración de contenido web de código abierto basado en PHP. En TYPO3 anterior a versiones 9.5.23 y 10.4.10, la extensión del sistema Fluid (typo3/cms-fluid) del core de TYPO3 es vulnerable a cross-site scripting que pasa datos controlados por el usuario como argumento para los asistentes de vistas de Fluid. • https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-vqqx-jw6p-q3rf https://typo3.org/security/advisory/typo3-core-sa-2020-010 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVE-2020-15098 – Missing Required Cryptographic Step Leading to Sensitive Information Disclosure in TYPO3 CMS
https://notcve.org/view.php?id=CVE-2020-15098
In TYPO3 CMS greater than or equal to 9.0.0 and less than 9.5.20, and greater than or equal to 10.0.0 and less than 10.4.6, it has been discovered that an internal verification mechanism can be used to generate arbitrary checksums. This allows to inject arbitrary data having a valid cryptographic message authentication code (HMAC-SHA1) and can lead to various attack chains including potential privilege escalation, insecure deserialization & remote code execution. The overall severity of this vulnerability is high based on mentioned attack chains and the requirement of having a valid backend user session (authenticated). This has been patched in versions 9.5.20 and 10.4.6. En TYPO3 CMS versiones posteriores o igual a 9.0.0 y anteriores a 9.5.20, y versiones posteriores o igual a 10.0.0 y anteriores a 10.4.6, se ha detectado que puede ser usado un mecanismo de verificación interna para generar sumas de comprobación arbitrarias. • https://github.com/TYPO3/TYPO3.CMS/commit/85d3e70dff35a99ef53f4b561114acfa9e5c47e1 https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-m5vr-3m74-jwxp https://typo3.org/security/advisory/typo3-core-sa-2016-013 https://typo3.org/security/advisory/typo3-core-sa-2020-008 • CWE-20: Improper Input Validation CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-325: Missing Cryptographic Step CWE-327: Use of a Broken or Risky Cryptographic Algorithm CWE-502: Deserialization of Untrusted Data •
CVE-2020-15099 – Exposure of Sensitive Information to an Unauthorized Actor in TYPO3 CMS
https://notcve.org/view.php?id=CVE-2020-15099
In TYPO3 CMS greater than or equal to 9.0.0 and less than 9.5.20, and greater than or equal to 10.0.0 and less than 10.4.6, in a case where an attacker manages to generate a valid cryptographic message authentication code (HMAC-SHA1) - either by using a different existing vulnerability or in case the internal encryptionKey was exposed - it is possible to retrieve arbitrary files of a TYPO3 installation. This includes the possibility to fetch typo3conf/LocalConfiguration.php, which again contains the encryptionKey as well as credentials of the database management system being used. In case a database server is directly accessible either via internet or in a shared hosting network, this allows the ability to completely retrieve, manipulate or delete database contents. This includes creating an administration user account - which can be used to trigger remote code execution by injecting custom extensions. This has been patched in versions 9.5.20 and 10.4.6. • https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-3x94-fv5h-5q2c https://typo3.org/security/advisory/typo3-core-sa-2020-007 • CWE-20: Improper Input Validation CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •