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Threat actors once again target system administrators via their favorite tools. Learn more about their TTPs and use the IOCs provide to investigate.
### Summary The vulnerability impacts only users of the `IdTokenVerifier` class. The verify method in `IdTokenVerifier` does not validate the signature before verifying the claims (e.g., iss, aud, etc.). Signature verification makes sure that the token's payload comes from valid provider, not from someone else. An attacker can provide a compromised token with modified payload like email or phone number. The token will pass the validation by the library. Once verified, modified payload can be used by the application. If the application sends verified `IdToken` to other service as is like for auth - the risk is low, because the backend of the service is expected to check the signature and fail the request. Reporter: [Tamjid al Rahat](https://github.com/tamjidrahat), contributor ### Patches The issue was fixed in the 1.33.3 version of the library ### Proof of Concept To reproduce, one needs to call the verify function with an IdToken instance that contains a malformed signature to ...
It was discovered that a race condition existed in the io_uring subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. Lonial Con discovered that the netfilter subsystem in the Linux kernel contained a memory leak when handling certain element flush operations. A local attacker could use this to expose sensitive information (kernel memory). Various other issues were also addressed.
Ubuntu Security Notice 6726-1 - Pratyush Yadav discovered that the Xen network backend implementation in the Linux kernel did not properly handle zero length data request, leading to a null pointer dereference vulnerability. An attacker in a guest VM could possibly use this to cause a denial of service. It was discovered that the IPv6 implementation of the Linux kernel did not properly manage route cache memory usage. A remote attacker could use this to cause a denial of service.
Ubuntu Security Notice 6725-1 - Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel did not properly validate certain data structure fields when parsing lease contexts, leading to an out-of-bounds read vulnerability. A remote attacker could use this to cause a denial of service or possibly expose sensitive information. Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel, leading to a use-after-free vulnerability. A remote attacker could use this to cause a denial of service or possibly execute arbitrary code.
Ubuntu Security Notice 6724-1 - Pratyush Yadav discovered that the Xen network backend implementation in the Linux kernel did not properly handle zero length data request, leading to a null pointer dereference vulnerability. An attacker in a guest VM could possibly use this to cause a denial of service. It was discovered that the Habana's AI Processors driver in the Linux kernel did not properly initialize certain data structures before passing them to user space. A local attacker could use this to expose sensitive information.
Cisco Talos is disclosing a new threat actor we deemed “Starry Addax” targeting mostly human rights activists, associated with the Sahrawi Arab Democratic Republic (SADR) cause with a novel mobile malware.
WordPress Travelscape theme version 1.0.3 suffers from an arbitrary file upload vulnerability.
Google has announced support for what's called a V8 Sandbox in the Chrome web browser in an effort to address memory corruption issues. The sandbox, according to V8 Security technical lead Samuel Groß, aims to prevent "memory corruption in V8 from spreading within the host process." The search behemoth has described V8 Sandbox as a lightweight, in-process sandbox