
CVE-2021-25122 – Apache Tomcat h2c request mix-up
https://notcve.org/view.php?id=CVE-2021-25122
01 Mar 2021 — When responding to new h2c connection requests, Apache Tomcat versions 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41 and 8.5.0 to 8.5.61 could duplicate request headers and a limited amount of request body from one request to another meaning user A and user B could both see the results of user A's request. Cuando se responde a nuevas peticiones de conexión h2c, Apache Tomcat versiones 10.0.0-M1 hasta 10.0.0, versiones 9.0.0.M1 hasta 9.0.41 y versiones 8.5.0 hasta 8.5.61, podrían duplicar los encabezados de petici... • http://www.openwall.com/lists/oss-security/2021/03/01/1 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVE-2021-25329 – Incomplete fix for CVE-2020-9484
https://notcve.org/view.php?id=CVE-2021-25329
01 Mar 2021 — The fix for CVE-2020-9484 was incomplete. When using Apache Tomcat 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41, 8.5.0 to 8.5.61 or 7.0.0. to 7.0.107 with a configuration edge case that was highly unlikely to be used, the Tomcat instance was still vulnerable to CVE-2020-9494. Note that both the previously published prerequisites for CVE-2020-9484 and the previously published mitigations for CVE-2020-9484 also apply to this issue. La corrección para el CVE-2020-9484 estaba incompleta. Cuando se usa Apache To... • http://www.openwall.com/lists/oss-security/2021/03/01/2 • CWE-502: Deserialization of Untrusted Data •

CVE-2021-24122 – Apache Tomcat information disclosure
https://notcve.org/view.php?id=CVE-2021-24122
14 Jan 2021 — When serving resources from a network location using the NTFS file system, Apache Tomcat versions 10.0.0-M1 to 10.0.0-M9, 9.0.0.M1 to 9.0.39, 8.5.0 to 8.5.59 and 7.0.0 to 7.0.106 were susceptible to JSP source code disclosure in some configurations. The root cause was the unexpected behaviour of the JRE API File.getCanonicalPath() which in turn was caused by the inconsistent behaviour of the Windows API (FindFirstFileW) in some circumstances. Cuando se sirven recursos desde una ubicación de red usando el si... • http://www.openwall.com/lists/oss-security/2021/01/14/1 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-706: Use of Incorrectly-Resolved Name or Reference •

CVE-2020-17521 – groovy: OS temporary directory leads to information disclosure
https://notcve.org/view.php?id=CVE-2020-17521
07 Dec 2020 — Apache Groovy provides extension methods to aid with creating temporary directories. Prior to this fix, Groovy's implementation of those extension methods was using a now superseded Java JDK method call that is potentially not secure on some operating systems in some contexts. Users not using the extension methods mentioned in the advisory are not affected, but may wish to read the advisory for further details. Versions Affected: 2.0 to 2.4.20, 2.5.0 to 2.5.13, 3.0.0 to 3.0.6, and 4.0.0-alpha-1. Fixed in ve... • https://groovy-lang.org/security.html#CVE-2020-17521 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVE-2020-13935 – tomcat: multiple requests with invalid payload length in a WebSocket frame could lead to DoS
https://notcve.org/view.php?id=CVE-2020-13935
14 Jul 2020 — The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service. La longitud de la carga útil en una trama de WebSocket no fue comprobada correctamente en Apache Tomcat versiones 10.0.0-M1 hasta 10.0.0-M6, versiones 9.0.0.M1 hasta 9.0.36, versiones 8.5.0 hasta 8.5.56 y v... • https://github.com/RedTeamPentesting/CVE-2020-13935 • CWE-400: Uncontrolled Resource Consumption CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •

CVE-2020-13934 – tomcat: OutOfMemoryException caused by HTTP/2 connection leak could lead to DoS
https://notcve.org/view.php?id=CVE-2020-13934
14 Jul 2020 — An h2c direct connection to Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36 and 8.5.1 to 8.5.56 did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests were made, an OutOfMemoryException could occur leading to a denial of service. Una conexión directa h2c a Apache Tomcat versiones 10.0.0-M1 hasta 10.0.0-M6, versiones 9.0.0.M5 hasta 9.0.36 y versiones 8.5.1 hasta 8.5.56, no publicó el procesador HTTP/1.1 después de la actualización a HTTP/2. Si un ... • http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00084.html • CWE-400: Uncontrolled Resource Consumption CWE-401: Missing Release of Memory after Effective Lifetime CWE-476: NULL Pointer Dereference •

CVE-2020-9484 – tomcat: deserialization flaw in session persistence storage leading to RCE
https://notcve.org/view.php?id=CVE-2020-9484
20 May 2020 — When using Apache Tomcat versions 10.0.0-M1 to 10.0.0-M4, 9.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54 and 7.0.0 to 7.0.103 if a) an attacker is able to control the contents and name of a file on the server; and b) the server is configured to use the PersistenceManager with a FileStore; and c) the PersistenceManager is configured with sessionAttributeValueClassNameFilter="null" (the default unless a SecurityManager is used) or a sufficiently lax filter to allow the attacker provided object to be deserialized; and d)... • https://packetstorm.news/files/id/157924 • CWE-502: Deserialization of Untrusted Data •

CVE-2020-10683 – dom4j: XML External Entity vulnerability in default SAX parser
https://notcve.org/view.php?id=CVE-2020-10683
01 May 2020 — dom4j before 2.0.3 and 2.1.x before 2.1.3 allows external DTDs and External Entities by default, which might enable XXE attacks. However, there is popular external documentation from OWASP showing how to enable the safe, non-default behavior in any application that uses dom4j. dom4j versiones anteriores a 2.0.3 y versiones 2.1.x anteriores a 2.1.3, permite DTDs y External Entities por defecto, lo que podría permitir ataques de tipo XXE. Sin embargo, existe una documentación externa popular de OWASP que mues... • http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00061.html • CWE-611: Improper Restriction of XML External Entity Reference •

CVE-2020-1938 – Apache Tomcat Improper Privilege Management Vulnerability
https://notcve.org/view.php?id=CVE-2020-1938
24 Feb 2020 — When using the Apache JServ Protocol (AJP), care must be taken when trusting incoming connections to Apache Tomcat. Tomcat treats AJP connections as having higher trust than, for example, a similar HTTP connection. If such connections are available to an attacker, they can be exploited in ways that may be surprising. In Apache Tomcat 9.0.0.M1 to 9.0.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99, Tomcat shipped with an AJP Connector enabled by default that listened on all configured IP addresses. It was expected... • https://packetstorm.news/files/id/180825 • CWE-285: Improper Authorization •

CVE-2019-17569 – tomcat: Regression in handling of Transfer-Encoding header allows for HTTP request smuggling
https://notcve.org/view.php?id=CVE-2019-17569
24 Feb 2020 — The refactoring present in Apache Tomcat 9.0.28 to 9.0.30, 8.5.48 to 8.5.50 and 7.0.98 to 7.0.99 introduced a regression. The result of the regression was that invalid Transfer-Encoding headers were incorrectly processed leading to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely. La refactorización presente en Apache Tomcat versiones 9.0.28 ha... • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00025.html • CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') •