CVE-2024-6387

CVE-2024-6387 OpenSSH 서버sshd의 시그널 핸들러 경쟁 조건 설명 glibc 기반 Linux 시스템에서 OpenSSH 서버sshd의 시그널 핸들러 경쟁 조건을 대상으로 하는 CVE-2024-6387 익스플로잇입니다. 이 취약점은 SIGALRM 핸들러에서 async-signal-unsafe 함수가 호출되어 root 권한으로 원격 코드 실행이 가능하게 합니다. 설치 $ make all 사용법 $ ./exp 익스플로잇 상세 취약점 요약 이 익스플로잇은 OpenSSH sshd의 SIGALRM 핸들러 경쟁 조건을 대상...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: bluetooth/l2cap: syncsock recvcb and release operations. The issue arises between the system call to close the socket and the hcirxwork function. In this process, the former releases the socket, while the latter accesses it witho...

qlikview-poc-CVE-2024-29863

영향받는 애플리케이션: QlikView 플랫폼: Windows 이슈: MSI 설치 프로그램을 통한 로컬 권한 상승DLL 하이재킹 경쟁 조건 발견 및 보고자: Pawel Karwowski, Julian Horoszkiewicz Eviden Red Team 세부 사항: QuikView12가 설치된 시스템에서 일반 사용자가 다음 명령을 실행하여 설치 프로그램을 "복구" 모드로 트리거할 수 있습니다: msiexec.exe /fa PATHTOINSTALLERFILE.msi 이로 인해 msiexec 서비스가 트리거되어 복구 프로세스를...

CVE-2020-17103

🛡️ MiniPlasma - CVE-2020-17103 Windows 로컬 권한 상승 제로데이 익스플로잇 자리 표시자 파일을 SYSTEM 액세스로 전환 📋 개요 MiniPlasma 는 Windows Cloud Files Mini Filter Driver cldflt.sys의 CVE-2020-17103 을 대상으로 하는 강력한 로컬 권한 상승 익스플로잇입니다. 이를 통해 모든 표준 사용자가 완전히 패치된 Windows 11, Windows Server 2022 및 Windows Server 2025 시스템2026년 6월 기준에서...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: kernfs: A use-after-free issue has been fixed in kernfsremove. Syzkaller managed to trigger concurrent calls to kernfsremovebynamens for the same file, resulting in a KASAN detected use-after-free. This race condition occurs...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm: zswap: fix missing folio cleanup in writeback race path In zswapwritebackentry, after obtaining a folio from readswapcacheasync, we reacquire the tree lock to ensure that the swap entry was not invalidated or recycled. If it...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: nvme-pci: ensure we’re polling a polled queue. A user can change the number of polled queues at runtime. There is a short window during a reset when a hipri task may try to poll that queue before the block layer has updated the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: In the media subsystem, for mc and v4l2, the operations REINIT and REQBUFS are now serialized using the reqqueuemutex. The MEDIAREQUESTIOCREINIT operation can run concurrently with VIDIOCREQBUFS0. Paths involving queue teardown m...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fixed a use-after-free in iscsitdecsessionusagecount. In iscsitdecsessionusagecount, the function calls complete while holding the sess-sessionusagelock. Similar to the connection usage counting logic, the...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ksmbd: The UAF issue in ksmbdtcpnewconnection has been fixed. The race that occurs is between the process of handling a new TCP connection and its disconnection. This causes a UAF error in the struct tcptransport structure within...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: memcg: Protection for concurrent access to memcgroupidr Commit 73f576c04b94 “mm: memcontrol: Fixing cgroup creation failures after many small operations” separated the memcgroupidr IDs from the CSS ID space to address cgroup...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: frndis: Protect RNDIS options with a mutex The class/subclass/protocol options are susceptible to race conditions, as they can be accessed concurrently through configfs. A mutex should be used to protect these option...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: KVM: Explicitly verify that the target vCPU is online in kvmgetvcpu It is necessary to explicitly verify that the target vCPU is fully online prior to clamping the index in kvmgetvcpu. If the index is “bad”, the nospec clamping...

Astra Linux – Vulnerability in Tomcat9

There is a vulnerability in Apache Tomcat when using the APR/Native connector, involving concurrent execution with shared resources and improper synchronization known as “race condition”. This issue is particularly noticeable during client-initiated closures of HTTP/2 connections. This issue...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15

In the Linux kernel, the following vulnerability has been resolved: mm/swap: Fixed the race condition between swapoff and getswappages. The si-lock must be held when deleting the si from the available list. Otherwise, another thread may re-add the si to the available list, leading to memory...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: soc: fsl: qbman: A race condition in qmanDestroyFQ has been fixed. When QMANFQFLAGDYNAMICFQID is set, there is a race condition between the state of fqtablefq-idx and the process of freeing/allocating resources from the pool. The...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: VMCI: fixed a race condition between vmcihostsetupnotify and vmcictxunsetnotify. During our testing, it was found that a warning can occur in trygrabfolio. The detailed error message is as follows: ----------- Cut here ----------...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: gpio: Restrict the use of GPIO chip IRQ members before initialization. The IRQ members of the GPIO chip are exposed before they can be fully initialized, which leads to race conditions. One such issue was observed with the...

Astra Linux – Vulnerability in Firefox

When Web Render components were destroyed, a race condition could lead to undefined behavior. We assume that with sufficient effort, this vulnerability could be exploited to execute arbitrary code. This vulnerability affects Firefox versions earlier than 88.0.1, as well as Firefox for Android...

Astra Linux – Vulnerability in Linux 5.10, Linux

Several Linux PV device frontends are vulnerable to attacks by backends that use grant table interfaces to remove access rights from resources. This can lead to potential data leaks, data corruption by malicious backends, and denial of service attacks. The backends that use these interfaces may n...