#ssl

Trust is something we encounter every day in many different contexts, whether it’s with people, institutions or products. With trust comes vulnerability–an especially uncomfortable concept for those of us primarily concerned with security. No one wants their systems to be vulnerable, but if you really want to understand the security posture of your system, you need to understand what you are trusting and how it could expose you.What is trust?Zero trust is a term that’s getting a lot of buzz, but it can be a bit of a misnomer. It's not so much zero trust, but zero implicit trust. Nothing

### Impact The tokio-boring library in version 4.0.0 is affected by a memory leak issue that can lead to excessive resource consumption and potential DoS by resource exhaustion. The `set_ex_data` function used by the library did not deallocate memory used by pre-existing data in memory each time after completing a TLS connection causing the program to consume more resources with each new connection. ### Patches The issue is fixed in version 4.1.0 of tokio-boring. ### References [CVE-2023-6180 at cve.org](https://www.cve.org/CVERecord?id=CVE-2023-6180)

Improper authentication in the SMA100 SSL-VPN virtual office portal allows a remote authenticated attacker to create an identical external domain user using accent characters, resulting in an MFA bypass.

## Impact There is a potential vulnerability in Traefik managing the ACME HTTP challenge. When Traefik is configured to use the [HTTPChallenge](https://doc.traefik.io/traefik/https/acme/#httpchallenge) to generate and renew the Let's Encrypt TLS certificates, the delay authorized to solve the challenge (50 seconds) can be exploited by attackers ([slowloris attack](https://www.cloudflare.com/learning/ddos/ddos-attack-tools/slowloris/)). ## Patches - https://github.com/traefik/traefik/releases/tag/v2.10.6 - https://github.com/traefik/traefik/releases/tag/v3.0.0-beta5 ## Workarounds Replace the HTTPChallenge with the [TLSChallenge](https://doc.traefik.io/traefik/https/acme/#tlschallenge) or the [DNSChallenge](https://doc.traefik.io/traefik/https/acme/#dnschallenge). ## For more information If you have any questions or comments about this advisory, please [open an issue](https://github.com/traefik/traefik/issues).

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS#1 padding may leak timing information, which in turn could be used to recover session key bits. In Go 1.20, the crypto/tls library switched to a fully constant time RSA implementation, which we do not believe exhibits any timing side channels.

An issue exists in SoftIron HyperCloud where compute nodes may come online immediately without following the correct initialization process.  In this instance, workloads may be scheduled on these nodes and deploy to a failed or erroneous state, which impacts the availability of these workloads that may be deployed during this time window. This issue impacts HyperCloud versions from 2.0.0 to before 2.0.3.

Azure RTOS NetX Duo is a TCP/IP network stack designed specifically for deeply embedded real-time and IoT applications. An attacker can cause remote code execution due to memory overflow vulnerabilities in Azure RTOS NETX Duo. The affected components include processes/functions related to snmp, smtp, ftp and dtls in RTOS v6.2.1 and below. The fixes have been included in NetX Duo release 6.3.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Traefik is an open source HTTP reverse proxy and load balancer. When Traefik is configured to use the `HTTPChallenge` to generate and renew the Let's Encrypt TLS certificates, the delay authorized to solve the challenge (50 seconds) can be exploited by attackers to achieve a `slowloris attack`. This vulnerability has been patch in version 2.10.6 and 3.0.0-beta5. Users are advised to upgrade. Users unable to upgrade should replace the `HTTPChallenge` with the `TLSChallenge` or the `DNSChallenge`.

PHPJabbers Appointment Scheduler version 3.0 suffers from a missing rate limiting control that can allow for resource exhaustion.

PHPJabbers Car Rental version 3.0 suffers from a missing rate limiting control that can allow for resource exhaustion.