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CVSS: 9.8EPSS: 4%CPEs: 23EXPL: 2

transport.py in the SSH server implementation of Paramiko before 1.17.6, 1.18.x before 1.18.5, 2.0.x before 2.0.8, 2.1.x before 2.1.5, 2.2.x before 2.2.3, 2.3.x before 2.3.2, and 2.4.x before 2.4.1 does not properly check whether authentication is completed before processing other requests, as demonstrated by channel-open. A customized SSH client can simply skip the authentication step. transport.py en la implementación del servidor SSH de Paramiko, en versiones anteriores a la 1.17.6; versiones 1.18.x anteriores a la 1.18.5; versiones 2.0.x anteriores a la 2.0.8; versiones 2.1.x anteriores a la 2.1.5; versiones 2.2.x anteriores a la 2.2.3; versiones 2.3.x anteriores a la 2.3.2 y versiones 2.4.x anteriores a la 2.4.1, no comprueba adecuadamente si la autenticación se ha completado antes de procesar otras peticiones, tal y como demuestra channel-open. Un cliente SSH personalizado puede simplemente omitir el paso de autenticación. It was found that when acting as an SSH server, paramiko did not properly check whether authentication is completed before processing other requests. A customized SSH client could use this to bypass authentication when accessing any resources controlled by paramiko. • https://www.exploit-db.com/exploits/45712 https://github.com/jm33-m0/CVE-2018-7750 http://www.securityfocus.com/bid/103713 https://access.redhat.com/errata/RHSA-2018:0591 https://access.redhat.com/errata/RHSA-2018:0646 https://access.redhat.com/errata/RHSA-2018:1124 https://access.redhat.com/errata/RHSA-2018:1125 https://access.redhat.com/errata/RHSA-2018:1213 https://access.redhat.com/errata/RHSA-2018:1274 https://access.redhat.com/errata/RHSA-2018:1328 https:&#x • CWE-287: Improper Authentication •

CVSS: 8.1EPSS: 9%CPEs: 17EXPL: 0

FasterXML jackson-databind through 2.8.11 and 2.9.x through 2.9.3 allows unauthenticated remote code execution because of an incomplete fix for the CVE-2017-7525 and CVE-2017-17485 deserialization flaws. This is exploitable via two different gadgets that bypass a blacklist. FasterXML jackson-databind, hasta la versión 2.8.11 y las versiones 2.9.x hasta la 2.9.3, permite la ejecución remota de código sin autenticar debido a una solución incompleta para los errores de deserialización CVE-2017-7525 y CVE-2017-17485. Esto es explotable mediante dos gadgets diferentes que omiten una lista negra. A deserialization flaw was discovered in the jackson-databind that could allow an unauthenticated user to perform code execution by sending the maliciously crafted input to the readValue method of the ObjectMapper. • https://access.redhat.com/errata/RHSA-2018:0478 https://access.redhat.com/errata/RHSA-2018:0479 https://access.redhat.com/errata/RHSA-2018:0480 https://access.redhat.com/errata/RHSA-2018:0481 https://access.redhat.com/errata/RHSA-2018:1525 https://access.redhat.com/errata/RHSA-2019:2858 https://access.redhat.com/errata/RHSA-2019:3149 https://github.com/FasterXML/jackson-databind/issues/1899 https://security.netapp.com/advisory/ntap-20180423-0002 https://support.hpe.com/h • CWE-184: Incomplete List of Disallowed Inputs CWE-502: Deserialization of Untrusted Data •

CVSS: 9.8EPSS: 2%CPEs: 58EXPL: 0

A deserialization flaw was discovered in the jackson-databind in versions before 2.8.10 and 2.9.1, which could allow an unauthenticated user to perform code execution by sending the maliciously crafted input to the readValue method of the ObjectMapper. This issue extends the previous flaw CVE-2017-7525 by blacklisting more classes that could be used maliciously. Se ha descubierto un error de deserialización en jackson-databind, en versiones anteriores a la 2.8.10 y a la 2.9.1, que podría permitir que un usuario no autenticado ejecute código enviando las entradas maliciosamente manipuladas al método readValue de ObjectMapper. Este problema amplía el error previo de CVE-2017-7525 metiendo en la lista negra más clases que podrían emplearse de forma maliciosa. A deserialization flaw was discovered in the jackson-databind which could allow an unauthenticated user to perform code execution by sending the maliciously crafted input to the readValue method of the ObjectMapper. • http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html http://www.securityfocus.com/bid/103880 http://www.securitytracker.com/id/1039769 https://access.redhat.com/errata/RHSA-2017:3189 https://access.redhat.com/errata/RHSA-2017:3190 https://access.redhat.com/errata/RHSA-2018:0342 https://access.redhat.com/errata/RHSA-2018: • CWE-184: Incomplete List of Disallowed Inputs CWE-502: Deserialization of Untrusted Data •

CVSS: 9.8EPSS: 49%CPEs: 52EXPL: 1

A deserialization flaw was discovered in the jackson-databind, versions before 2.6.7.1, 2.7.9.1 and 2.8.9, which could allow an unauthenticated user to perform code execution by sending the maliciously crafted input to the readValue method of the ObjectMapper. Se ha descubierto un error de deserialización en jackson-databind, en versiones anteriores a la 2.6.7.1, 2.7.9.1 y a la 2.8.9, que podría permitir que un usuario no autenticado ejecute código enviando las entradas maliciosamente manipuladas al método readValue de ObjectMapper. A deserialization flaw was discovered in the jackson-databind which could allow an unauthenticated user to perform code execution by sending the maliciously crafted input to the readValue method of the ObjectMapper. • https://github.com/Ingenuity-Fainting-Goats/CVE-2017-7525-Jackson-Deserialization-Lab http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html http://www.securityfocus.com/bid/99623 http://www.securitytracker.com/id/1039744 http://www.securitytracker.com/id/1039947 http://www.securitytracker.com/id/1040360 https://access.redhat.com/errat • CWE-20: Improper Input Validation CWE-184: Incomplete List of Disallowed Inputs CWE-502: Deserialization of Untrusted Data •

CVSS: 9.8EPSS: 1%CPEs: 12EXPL: 0

In Open vSwitch (OvS) 2.7.0, while parsing an OFPT_QUEUE_GET_CONFIG_REPLY type OFP 1.0 message, there is a buffer over-read that is caused by an unsigned integer underflow in the function `ofputil_pull_queue_get_config_reply10` in `lib/ofp-util.c`. En Open vSwitch (OvS) versión 2.7.0, mientras analiza un mensaje OFPT_QUEUE_GET_CONFIG_REPLY tipo OFP versión 1.0, se presenta una lectura excesiva búfer causada por un desbordamiento de enteros sin signo en la función “ofputil_pull_queue_get_config_reply10” en la biblioteca “lib/ofp-util.c”. An unsigned integer wrap around that led to a buffer over-read was found when parsing OFPT_QUEUE_GET_CONFIG_REPLY messages in Open vSwitch (OvS). An attacker could use this issue to cause a remote denial of service attack. • https://access.redhat.com/errata/RHSA-2017:2418 https://access.redhat.com/errata/RHSA-2017:2553 https://access.redhat.com/errata/RHSA-2017:2648 https://access.redhat.com/errata/RHSA-2017:2665 https://access.redhat.com/errata/RHSA-2017:2692 https://access.redhat.com/errata/RHSA-2017:2698 https://access.redhat.com/errata/RHSA-2017:2727 https://lists.debian.org/debian-lts-announce/2021/02/msg00032.html https://mail.openvswitch.org/pipermail/ovs-dev/2017-May/332711.html https • CWE-190: Integer Overflow or Wraparound CWE-191: Integer Underflow (Wrap or Wraparound) •