Tag
#mac
### Summary Due to improper TLS certificate management, a compromised `virt-handler` could impersonate `virt-api` by using its own TLS credentials, allowing it to initiate privileged operations against another `virt-handler`. ### Details _Give all details on the vulnerability. Pointing to the incriminated source code is very helpful for the maintainer._ Because of improper TLS certificate management, a compromised `virt-handler` instance can reuse its TLS bundle to impersonate `virt-api`, enabling unauthorized access to VM lifecycle operations on other `virt-handler` nodes. The `virt-api` component acts as a sub-resource server, and it proxies API VM lifecycle requests to `virt-handler` instances. The communication between `virt-api` and `virt-handler` instances is secured using mTLS. The former acts as a client while the latter as the server. The client certificate used by `virt-api` is defined in the source code as follows and have the following properties: ```go //pkg/virt-api/...
### Summary _Short summary of the problem. Make the impact and severity as clear as possible. Mounting a user-controlled PVC disk within a VM allows an attacker to read any file present in the `virt-launcher` pod. This is due to erroneous handling of symlinks defined within a PVC. ### Details _Give all details on the vulnerability. Pointing to the incriminated source code is very helpful for the maintainer._ A vulnerability was discovered that allows a VM to read arbitrary files from the `virt-launcher` pod's file system. This issue stems from improper symlink handling when mounting PVC disks into a VM. Specifically, if a malicious user has full or partial control over the contents of a PVC, they can create a symbolic link that points to a file within the `virt-launcher` pod's file system. Since `libvirt` can treat regular files as block devices, any file on the pod's file system that is symlinked in this way can be mounted into the VM and subsequently read. Although a security mec...
### Summary _Short summary of the problem. Make the impact and severity as clear as possible. A flawed implementation of the Kubernetes aggregation layer's authentication flow could enable bypassing RBAC controls. ### Details _Give all details on the vulnerability. Pointing to the incriminated source code is very helpful for the maintainer._ It was discovered that the `virt-api` component fails to correctly authenticate the client when receiving API requests over mTLS. In particular, it fails to validate the CN (Common Name) field in the received client TLS certificates against the set of allowed values defined in the `extension-apiserver-authentication` configmap. The Kubernetes API server proxies received client requests through a component called aggregator (part of K8S's API server), and authenticates to the `virt-api` server using a certificate signed by the CA specified via the `--requestheader-client-ca-file` CLI flag. This CA bundle is primarily used in the context of aggr...
There’s a modern-day train heist happening across America, and some of the bandana-masked robbers are sitting behind screens.
Forget card skimmers—this Android malware uses your phone’s NFC to help criminals pull cash straight from ATMs.
### Impact Unauthenticated denial of service. ### Summary When installing module packages from attacker-controlled sources, `tofu init` may use unbounded memory, cause high CPU usage, or crash when encountering maliciously-crafted TLS certificate chains or tar archives. Those who depend on modules or providers served from untrusted third-party servers may experience denial of service due to `tofu init` failing to complete successfully. In the case of unbounded memory usage or high CPU usage, other processes running on the same computer as OpenTofu may also fail or have their performance degraded due to the depletion of shared system resources. These vulnerabilities **do not** permit arbitrary code execution or allow disclosure of confidential information. ### Details OpenTofu relies on third-party implementations of TLS certificate verification and tar archive extraction from the standard library of the Go programming language. The Go project has recently published the followin...
A misconfiguration in the sudoers file permits passwordless execution of specific Bash shell scripts via sudo, exposing a critical privilege escalation vulnerability. When such scripts are writable by a web-facing user (www-data) or accessible through a command injection vector, an attacker can overwrite or replace them with malicious payloads. Upon execution with sudo, these scripts run with elevated privileges, allowing the attacker to gain full root access remotely.
The application stores user passwords in the database using the MD5 hashing algorithm, which is considered cryptographically insecure due to its vulnerability to collision and brute-force attacks. MD5 lacks modern protections such as salting and computational hardness, making it trivial for attackers to crack password hashes using precomputed rainbow tables or GPU-accelerated dictionary attacks.
Cisco on Wednesday disclosed that it became aware of a new attack variant that's designed to target devices running Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software releases that are susceptible to CVE-2025-20333 and CVE-2025-20362. "This attack can cause unpatched devices to unexpectedly reload, leading to denial-of-service
Cybercrime has stopped being a problem of just the internet — it’s becoming a problem of the real world. Online scams now fund organized crime, hackers rent violence like a service, and even trusted apps or social platforms are turning into attack vectors. The result is a global system where every digital weakness can be turned into physical harm, economic loss, or political