CVE-2021-23926 – XMLBeans XML Entity Expansion
https://notcve.org/view.php?id=CVE-2021-23926
The XML parsers used by XMLBeans up to version 2.6.0 did not set the properties needed to protect the user from malicious XML input. Vulnerabilities include possibilities for XML Entity Expansion attacks. Affects XMLBeans up to and including v2.6.0. Los analizadores XML usados por XMLBeans versiones hasta 2.6.0 no establecían las propiedades necesarias para proteger al usuario de entradas XML maliciosas. Unas vulnerabilidades incluyen posibilidades de ataques de Expansión de Entidades XML. • https://issues.apache.org/jira/browse/XMLBEANS-517 https://lists.apache.org/thread.html/r2dc5588009dc9f0310b7382269f932cc96cae4c3901b747dda1a7fed%40%3Cjava-dev.axis.apache.org%3E https://lists.apache.org/thread.html/rbb01d10512098894cd5f22325588197532c64f1c818ea7e4120d40c1%40%3Cjava-dev.axis.apache.org%3E https://lists.debian.org/debian-lts-announce/2021/06/msg00024.html https://poi.apache.org https://security.netapp.com/advisory/ntap-20210513-0004 https://www.oracle.com/security-alerts/cpujul2022.html https://www.oracle • CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') •
CVE-2020-28052 – bouncycastle: password bypass in OpenBSDBCrypt.checkPassword utility possible
https://notcve.org/view.php?id=CVE-2020-28052
An issue was discovered in Legion of the Bouncy Castle BC Java 1.65 and 1.66. The OpenBSDBCrypt.checkPassword utility method compared incorrect data when checking the password, allowing incorrect passwords to indicate they were matching with previously hashed ones that were different. Se detectó un problema en Legion of the Bouncy Castle BC Java versiones 1.65 y 1.66. El método de la utilidad OpenBSDBCrypt.checkPassword comparó datos incorrectos al comprobar la contraseña, permitiendo a unas contraseñas incorrectas indicar que coinciden con otras previamente en hash que eran diferentes A flaw was found in bouncycastle. The OpenBSDBCrypt.checkPassword utility method compared incorrect data when checking the password allowing incorrect passwords to indicate they were matching with previously hashed ones that were different. • https://github.com/bcgit/bc-java/wiki/CVE-2020-28052 https://lists.apache.org/thread.html/r167dbc42ef7c59802c2ca1ac14735ef9cf687c25208229993d6206fe%40%3Cissues.karaf.apache.org%3E https://lists.apache.org/thread.html/r175f5a25d100dbe2b1bd3459b3ce882a84c3ff91b120ed4ff2d57b53%40%3Ccommits.pulsar.apache.org%3E https://lists.apache.org/thread.html/r25d53acd06f29244b8a103781b0339c5e7efee9099a4d52f0c230e4a%40%3Ccommits.druid.apache.org%3E https://lists.apache.org/thread.html/r2ddabd06d94b60cfb0141e4abb23201c628ab925e30742f61a04d013%40%3Cissues.karaf.apache.org%3E https://list • CWE-287: Improper Authentication •
CVE-2020-8908 – Temp directory permission issue in Guava
https://notcve.org/view.php?id=CVE-2020-8908
A temp directory creation vulnerability exists in all versions of Guava, allowing an attacker with access to the machine to potentially access data in a temporary directory created by the Guava API com.google.common.io.Files.createTempDir(). By default, on unix-like systems, the created directory is world-readable (readable by an attacker with access to the system). The method in question has been marked @Deprecated in versions 30.0 and later and should not be used. For Android developers, we recommend choosing a temporary directory API provided by Android, such as context.getCacheDir(). For other Java developers, we recommend migrating to the Java 7 API java.nio.file.Files.createTempDirectory() which explicitly configures permissions of 700, or configuring the Java runtime's java.io.tmpdir system property to point to a location whose permissions are appropriately configured. • https://github.com/google/guava/commit/fec0dbc4634006a6162cfd4d0d09c962073ddf40 https://github.com/google/guava/issues/4011 https://lists.apache.org/thread.html/r007add131977f4f576c232b25e024249a3d16f66aad14a4b52819d21%40%3Ccommon-issues.hadoop.apache.org%3E https://lists.apache.org/thread.html/r07ed3e4417ad043a27bee7bb33322e9bfc7d7e6d1719b8e3dfd95c14%40%3Cdev.drill.apache.org%3E https://lists.apache.org/thread.html/r161b87f8037bbaff400194a63cd2016c9a69f5949f06dcc79beeab54%40%3Cdev.drill.apache.org%3E https://lists.apache.org/thread.html/r215b3d50f56faeb2f9383505f3e62faa9f549bb • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-378: Creation of Temporary File With Insecure Permissions CWE-732: Incorrect Permission Assignment for Critical Resource •
CVE-2020-8284 – curl: FTP PASV command response can cause curl to connect to arbitrary host
https://notcve.org/view.php?id=CVE-2020-8284
A malicious server can use the FTP PASV response to trick curl 7.73.0 and earlier into connecting back to a given IP address and port, and this way potentially make curl extract information about services that are otherwise private and not disclosed, for example doing port scanning and service banner extractions. Un servidor malicioso puede usar la respuesta FTP PASV para engañar a curl versiones 7.73.0 y anteriores, para que se conecte de nuevo a una dirección IP y puerto determinados, y de esta manera potencialmente hacer que curl extraiga información sobre servicios que de otro modo serían privados y no divulgados, por ejemplo, haciendo escaneo de puerto y extracciones del banner de servicio A malicious server can use the `PASV` response to trick curl into connecting back to a given IP address and port, and this way potentially make curl extract information about services that are otherwise private and not disclosed, for example doing port scanning and service banner extractions. If curl operates on a URL provided by a user, a user can exploit that and pass in a URL to a malicious FTP server instance without needing any server breach to perform the attack. • https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://curl.se/docs/CVE-2020-8284.html https://hackerone.com/reports/1040166 https://lists.debian.org/debian-lts-announce/2020/12/msg00029.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DAEHE2S2QLO4AO4MEEYL75NB7SAH5PSL https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NZUVSQHN2ESHMJXNQ2Z7T2EELBB5HJXG https://security.gentoo.org/glsa/202012-14 https://securi • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVE-2020-8285 – curl: Malicious FTP server can trigger stack overflow when CURLOPT_CHUNK_BGN_FUNCTION is used
https://notcve.org/view.php?id=CVE-2020-8285
curl 7.21.0 to and including 7.73.0 is vulnerable to uncontrolled recursion due to a stack overflow issue in FTP wildcard match parsing. curl versiones 7.21.0 hasta 7.73.0 e incluyéndola, es vulnerable a una recursividad no controlada debido a un problema de desbordamiento de la pila en el análisis de coincidencias del comodín FTP Libcurl offers a wildcard matching functionality, which allows a callback (set with `CURLOPT_CHUNK_BGN_FUNCTION`) to return information back to libcurl on how to handle a specific entry in a directory when libcurl iterates over a list of all available entries. When this callback returns `CURL_CHUNK_BGN_FUNC_SKIP`, to tell libcurl to not deal with that file, the internal function in libcurl then calls itself recursively to handle the next directory entry. If there's a sufficient amount of file entries and if the callback returns "skip" enough number of times, libcurl runs out of stack space. The exact amount will of course vary with platforms, compilers and other environmental factors. • http://seclists.org/fulldisclosure/2021/Apr/51 https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://curl.se/docs/CVE-2020-8285.html https://github.com/curl/curl/issues/6255 https://hackerone.com/reports/1045844 https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E https://lists.debian.org/debian-lts • CWE-121: Stack-based Buffer Overflow CWE-674: Uncontrolled Recursion CWE-787: Out-of-bounds Write •