36 results (0.037 seconds)

CVSS: 7.7EPSS: 0%CPEs: 1EXPL: 0

13 May 2024 — strongSwan versions 5.9.2 through 5.9.5 are affected by authorization bypass through improper validation of certificate with host mismatch (CWE-297). When certificates are used to authenticate clients in TLS-based EAP methods, the IKE or EAP identity supplied by a client is not enforced to be contained in the client's certificate. So clients can authenticate with any trusted certificate and claim an arbitrary IKE/EAP identity as their own. This is problematic if the identity is used to make policy decisions... • https://github.com/strongswan/strongswan/commit/e4b4aabc4996fc61c37deab7858d07bc4d220136 •

CVSS: 10.0EPSS: 4%CPEs: 1EXPL: 0

21 Nov 2023 — strongSwan before 5.9.12 has a buffer overflow and possible unauthenticated remote code execution via a DH public value that exceeds the internal buffer in charon-tkm's DH proxy. The earliest affected version is 5.3.0. An attack can occur via a crafted IKE_SA_INIT message. strongSwan anterior a 5.9.12 tiene un desbordamiento del búfer y una posible ejecución remota de código no autenticado a través de un valor público DH que excede el búfer interno en el proxy DH de charon-tkm. La primera versión afectada e... • https://github.com/strongswan/strongswan/releases • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •

CVSS: 7.8EPSS: 0%CPEs: 12EXPL: 0

04 Oct 2022 — strongSwan before 5.9.8 allows remote attackers to cause a denial of service in the revocation plugin by sending a crafted end-entity (and intermediate CA) certificate that contains a CRL/OCSP URL that points to a server (under the attacker's control) that doesn't properly respond but (for example) just does nothing after the initial TCP handshake, or sends an excessive amount of application data. strongSwan anterior a 5.9.8 permite a atacantes remotos provocar una Denegación de Servicio en el complemento d... • https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J3GAYIOCSLU57C45CO4UE4IV4JZE4W3L • CWE-400: Uncontrolled Resource Consumption •

CVSS: 9.1EPSS: 0%CPEs: 14EXPL: 0

25 Jan 2022 — In strongSwan before 5.9.5, a malicious responder can send an EAP-Success message too early without actually authenticating the client and (in the case of EAP methods with mutual authentication and EAP-only authentication for IKEv2) even without server authentication. En strongSwan versiones anteriores a 5.9.5, un respondedor malicioso puede enviar un mensaje EAP-Success demasiado pronto sin autenticar realmente al cliente y (en el caso de los métodos EAP con autenticación mutua y autenticación sólo EAP par... • https://www.strongswan.org/blog/2022/01/24/strongswan-vulnerability-%28cve-2021-45079%29.html • CWE-476: NULL Pointer Dereference •

CVSS: 7.5EPSS: 2%CPEs: 40EXPL: 0

18 Oct 2021 — The gmp plugin in strongSwan before 5.9.4 has a remote integer overflow via a crafted certificate with an RSASSA-PSS signature. For example, this can be triggered by an unrelated self-signed CA certificate sent by an initiator. Remote code execution cannot occur. El plugin gmp en strongSwan versiones anteriores a 5.9.4, presenta un desbordamiento de enteros remoto por medio de un certificado diseñado con una firma RSASSA-PSS. Por ejemplo, esto puede ser desencadenado por un certificado de CA autofirmado no ... • https://cert-portal.siemens.com/productcert/pdf/ssa-539476.pdf • CWE-190: Integer Overflow or Wraparound •

CVSS: 7.5EPSS: 2%CPEs: 50EXPL: 0

18 Oct 2021 — The in-memory certificate cache in strongSwan before 5.9.4 has a remote integer overflow upon receiving many requests with different certificates to fill the cache and later trigger the replacement of cache entries. The code attempts to select a less-often-used cache entry by means of a random number generator, but this is not done correctly. Remote code execution might be a slight possibility. La caché de certificados en memoria en strongSwan versiones anteriores a 5.9.4, presenta un desbordamiento de ente... • https://cert-portal.siemens.com/productcert/pdf/ssa-539476.pdf • CWE-190: Integer Overflow or Wraparound •

CVSS: 3.5EPSS: 0%CPEs: 6EXPL: 0

12 Jun 2019 — The Libreswan Project has found a vulnerability in the processing of IKEv1 informational exchange packets which are encrypted and integrity protected using the established IKE SA encryption and integrity keys, but as a receiver, the integrity check value was not verified. This issue affects versions before 3.29. Se ha encontrado una vulnerabilidad en el proyecto The Libreswan en el procesador de IKEv1 Los paquetes de intercambio informativo IKEv1 que están cifrados y protegidos por integridad utilizando las... • https://access.redhat.com/errata/RHSA-2019:3391 • CWE-354: Improper Validation of Integrity Check Value •

CVSS: 7.5EPSS: 5%CPEs: 6EXPL: 0

02 Oct 2018 — The gmp plugin in strongSwan before 5.7.1 has a Buffer Overflow via a crafted certificate. El plugin gmp en strongSwan en versiones anteriores a la 5.7.1 tiene un desbordamiento de búfer mediante un certificado manipulado. It was discovered that strongSwan incorrectly handled signature validation in the gmp plugin. A remote attacker could use this issue to cause strongSwan to crash, resulting in a denial of service, or possibly execute arbitrary code. • http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00077.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 7.5EPSS: 1%CPEs: 7EXPL: 0

25 Sep 2018 — In verify_emsa_pkcs1_signature() in gmp_rsa_public_key.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data after the encoded algorithm OID during PKCS#1 v1.5 signature verification. Similar to the flaw in the same version of strongSwan regarding digestAlgorithm.parameters, a remote attacker can forge signatures when small public exponents are being used, which could lead to impersonation when only an RSA signature is used for IKEv2 auth... • http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00077.html • CWE-347: Improper Verification of Cryptographic Signature •

CVSS: 7.5EPSS: 1%CPEs: 7EXPL: 0

25 Sep 2018 — In verify_emsa_pkcs1_signature() in gmp_rsa_public_key.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data in the digestAlgorithm.parameters field during PKCS#1 v1.5 signature verification. Consequently, a remote attacker can forge signatures when small public exponents are being used, which could lead to impersonation when only an RSA signature is used for IKEv2 authentication. This is a variant of CVE-2006-4790 and CVE-2014-1568. En v... • http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00077.html • CWE-347: Improper Verification of Cryptographic Signature •