CVSS: 7.5EPSS: 0%CPEs: 6EXPL: 1CVE-2022-27782 – curl: TLS and SSH connection too eager reuse
https://notcve.org/view.php?id=CVE-2022-27782
libcurl would reuse a previously created connection even when a TLS or SSHrelated option had been changed that should have prohibited reuse.libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse if one of them matches the setup. However, several TLS andSSH settings were left out from the configuration match checks, making themmatch too easily. libcurl reusaba una conexión creada previamente incluso cuando había sido cambiada una opción relacionada con TLS o SSH que debería haber prohibido el reúso. libcurl mantiene las conexiones usadas previamente en un pool de conexiones para que las transferencias posteriores las reúsen si una de ellas coincide con la configuración. Sin embargo, varias opciones relacionadas con TLS y SSH se dejaron fuera de las comprobaciones de coincidencia de la configuración, lo que hizo que coincidieran con demasiada facilidad A vulnerability was found in curl. This issue occurs because curl can reuse a previously created connection even when a TLS or SSH-related option is changed that should have prohibited reuse. This flaw leads to an authentication bypass, either by mistake or by a malicious actor. • http://www.openwall.com/lists/oss-security/2023/03/20/6 https://hackerone.com/reports/1555796 https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html https://security.gentoo.org/glsa/202212-01 https://security.netapp.com/advisory/ntap-20220609-0009 https://www.debian.org/security/2022/dsa-5197 https://access.redhat.com/security/cve/CVE-2022-27782 https://bugzilla.redhat.com/show_bug.cgi?id=2082215 • CWE-295: Improper Certificate Validation CWE-840: Business Logic Errors •
CVSS: 8.1EPSS: 0%CPEs: 20EXPL: 1CVE-2022-22576 – curl: OAUTH2 bearer bypass in connection re-use
https://notcve.org/view.php?id=CVE-2022-22576
An improper authentication vulnerability exists in curl 7.33.0 to and including 7.82.0 which might allow reuse OAUTH2-authenticated connections without properly making sure that the connection was authenticated with the same credentials as set for this transfer. This affects SASL-enabled protocols: SMPTP(S), IMAP(S), POP3(S) and LDAP(S) (openldap only). Se presenta una vulnerabilidad de autenticación inapropiada en curl versiones 7.33.0 hasta 7.82.0 incluyéndola, que podría permitir reúso de conexiones autenticadas por OAUTH2 sin asegurarse apropiadamente de que la conexión fue autenticada con las mismas credenciales establecidas para esta transferencia. Esto afecta a los protocolos con SASL: SMPTP(S), IMAP(S), POP3(S) y LDAP(S) (sólo openldap) A vulnerability was found in curl. This security flaw allows reusing OAUTH2-authenticated connections without properly ensuring that the connection was authenticated with the same credentials set for this transfer. • https://hackerone.com/reports/1526328 https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html https://security.gentoo.org/glsa/202212-01 https://security.netapp.com/advisory/ntap-20220609-0008 https://www.debian.org/security/2022/dsa-5197 https://access.redhat.com/security/cve/CVE-2022-22576 https://bugzilla.redhat.com/show_bug.cgi?id=2077541 • CWE-287: Improper Authentication CWE-295: Improper Certificate Validation CWE-306: Missing Authentication for Critical Function •
CVSS: 7.5EPSS: 0%CPEs: 49EXPL: 1CVE-2021-22946 – curl: Requirement to use TLS not properly enforced for IMAP, POP3, and FTP protocols
https://notcve.org/view.php?id=CVE-2021-22946
A user can tell curl >= 7.20.0 and <= 7.78.0 to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server (`--ssl-reqd` on the command line or`CURLOPT_USE_SSL` set to `CURLUSESSL_CONTROL` or `CURLUSESSL_ALL` withlibcurl). This requirement could be bypassed if the server would return a properly crafted but perfectly legitimate response.This flaw would then make curl silently continue its operations **withoutTLS** contrary to the instructions and expectations, exposing possibly sensitive data in clear text over the network. Un usuario puede decirle a curl versiones posteriores a 7.20.0 incluyéndola , y versiones anteriores a 7.78.0 incluyéndola, que requiera una actualización con éxito a TLS cuando hable con un servidor IMAP, POP3 o FTP ("--ssl-reqd" en la línea de comandos o "CURLOPT_USE_SSL" configurado como "CURLUSESSL_CONTROL" o "CURLUSESSL_ALL" conlibcurl). Este requisito podría ser omitido si el servidor devolviera una respuesta correctamente diseñada pero perfectamente legítima. Este fallo haría que curl continuara silenciosamente sus operaciones **withoutTLS** en contra de las instrucciones y expectativas, exponiendo posiblemente datos confidenciales en texto sin cifrar a través de la red A flaw was found in curl. • http://seclists.org/fulldisclosure/2022/Mar/29 https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://hackerone.com/reports/1334111 https://lists.debian.org/debian-lts-announce/2021/09/msg00022.html https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RWLEC6YVEM2HWUBX67 • CWE-319: Cleartext Transmission of Sensitive Information CWE-325: Missing Cryptographic Step •
CVSS: 6.1EPSS: 0%CPEs: 46EXPL: 1CVE-2021-22947 – curl: Server responses received before STARTTLS processed after TLS handshake
https://notcve.org/view.php?id=CVE-2021-22947
When curl >= 7.20.0 and <= 7.78.0 connects to an IMAP or POP3 server to retrieve data using STARTTLS to upgrade to TLS security, the server can respond and send back multiple responses at once that curl caches. curl would then upgrade to TLS but not flush the in-queue of cached responses but instead continue using and trustingthe responses it got *before* the TLS handshake as if they were authenticated.Using this flaw, it allows a Man-In-The-Middle attacker to first inject the fake responses, then pass-through the TLS traffic from the legitimate server and trick curl into sending data back to the user thinking the attacker's injected data comes from the TLS-protected server. Cuando en curl versiones posteriores a 7.20.0 incluyéndola, y versiones anteriores a 7.78.0 incluyéndola, se conecta a un servidor IMAP o POP3 para recuperar datos usando STARTTLS para actualizar a la seguridad TLS, el servidor puede responder y enviar múltiples respuestas a la vez que curl almacena en caché. curl entonces actualizaría a TLS pero no vaciaría la cola de respuestas almacenadas en caché, sino que continuaría usando y confiando en las respuestas que obtuvo *antes* del protocolo de enlace TLS como si estuvieran autenticadas. Usando este fallo, permite a un atacante de tipo Man-In-The-Middle inyectar primero las respuestas falsas, luego pasar mediante el tráfico TLS del servidor legítimo y engañar a curl para que envíe datos de vuelta al usuario pensando que los datos inyectados por el atacante provienen del servidor protegido por TLS A flaw was found in curl. The flaw lies in how curl handles cached or pipelined responses that it receives from either a IMAP, POP3, SMTP or FTP server before the TLS upgrade using STARTTLS. In such a scenario curl even after upgrading to TLS would trust these cached responses treating them as valid and authenticated and use them. • http://seclists.org/fulldisclosure/2022/Mar/29 https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://hackerone.com/reports/1334763 https://lists.debian.org/debian-lts-announce/2021/09/msg00022.html https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RWLEC6YVEM2HWUBX67 • CWE-310: Cryptographic Issues CWE-319: Cleartext Transmission of Sensitive Information CWE-345: Insufficient Verification of Data Authenticity •
CVSS: 7.5EPSS: 0%CPEs: 32EXPL: 1CVE-2021-22926
https://notcve.org/view.php?id=CVE-2021-22926
libcurl-using applications can ask for a specific client certificate to be used in a transfer. This is done with the `CURLOPT_SSLCERT` option (`--cert` with the command line tool).When libcurl is built to use the macOS native TLS library Secure Transport, an application can ask for the client certificate by name or with a file name - using the same option. If the name exists as a file, it will be used instead of by name.If the appliction runs with a current working directory that is writable by other users (like `/tmp`), a malicious user can create a file name with the same name as the app wants to use by name, and thereby trick the application to use the file based cert instead of the one referred to by name making libcurl send the wrong client certificate in the TLS connection handshake. Las aplicaciones que usan libcurl pueden pedir un certificado de cliente específico para ser usado en una transferencia. Esto se hace con la opción "CURLOPT_SSLCERT" ("--cert" con la herramienta de línea de comandos).Cuando libcurl se construye para usar la biblioteca TLS nativa de macOS Transporte Seguro, una aplicación puede pedir el certificado del cliente por su nombre o con un nombre de archivo - usando la misma opción. • https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://hackerone.com/reports/1234760 https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cdev.kafka.apache.org%3E https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cusers.kafka.apache.org%3E https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cdev.kafka.apache.org%3E https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cuser • CWE-295: Improper Certificate Validation CWE-840: Business Logic Errors •