Android binder suffers from a use-after-free vulnerability via fdget() optimization.
e1809748df02c9d09d6f4feddfb033fdc2a0eee3d38b0c8d9099f338a04d4eedUbuntu Security Notice 5815-1 - It was discovered that a race condition existed in the Android Binder IPC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. David Leadbeater discovered that the netfilter IRC protocol tracking implementation in the Linux Kernel incorrectly handled certain message payloads in some situations. A remote attacker could possibly use this to cause a denial of service or bypass firewall filtering.
7f3d477e507b66b0daafcca7953d74f1ea4a8753942924b204034c093c0c71b0Ubuntu Security Notice 5793-3 - It was discovered that the io_uring subsystem in the Linux kernel did not properly perform reference counting in some situations, leading to a use- after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that a race condition existed in the Android Binder IPC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.
de87ce493d82fd0359247a8cad970c787d81d4e8273265a324e13a768ef64e55Ubuntu Security Notice 5793-4 - It was discovered that the io_uring subsystem in the Linux kernel did not properly perform reference counting in some situations, leading to a use- after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that a race condition existed in the Android Binder IPC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.
2c32e72ace00f2afbe7c74ffcd43d9f0c6bdd99ce3882f8881790ea8ad77c31cUbuntu Security Notice 5791-3 - It was discovered that a race condition existed in the Android Binder IPC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. David Leadbeater discovered that the netfilter IRC protocol tracking implementation in the Linux Kernel incorrectly handled certain message payloads in some situations. A remote attacker could possibly use this to cause a denial of service or bypass firewall filtering.
bea4157756a0d933dd299dae28bd0050fa218f5e44ba4864a54ee5c6b82a4669Ubuntu Security Notice 5793-2 - It was discovered that the io_uring subsystem in the Linux kernel did not properly perform reference counting in some situations, leading to a use- after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that a race condition existed in the Android Binder IPC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.
d675040336f5a36e7ca116ff8ee729cb2ab25769ff6dae5749e51445e04f8c2cUbuntu Security Notice 5792-2 - Mingwei Zhang discovered that the KVM implementation for AMD processors in the Linux kernel did not properly handle cache coherency with Secure Encrypted Virtualization. A local attacker could possibly use this to cause a denial of service. It was discovered that a race condition existed in the Android Binder IPC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.
61a76824088434d45265841359f97a71f6e3346100e4081fc6a5ddb1b292354eUbuntu Security Notice 5791-2 - It was discovered that a race condition existed in the Android Binder IPC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. David Leadbeater discovered that the netfilter IRC protocol tracking implementation in the Linux Kernel incorrectly handled certain message payloads in some situations. A remote attacker could possibly use this to cause a denial of service or bypass firewall filtering.
af31e2f0f32d49436b8b155fc82a87ba9e92d354b8a376c8215264292ec1c748Ubuntu Security Notice 5793-1 - It was discovered that the io_uring subsystem in the Linux kernel did not properly perform reference counting in some situations, leading to a use- after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that a race condition existed in the Android Binder IPC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.
91ba98c3c9637a1d31736093e5bfd37579c41aaa5e5abbbbc4396e2e20bfe7e1Ubuntu Security Notice 5792-1 - Mingwei Zhang discovered that the KVM implementation for AMD processors in the Linux kernel did not properly handle cache coherency with Secure Encrypted Virtualization. A local attacker could possibly use this to cause a denial of service. It was discovered that a race condition existed in the Android Binder IPC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.
0d471b882265b05e21d7d5364395548bdfdb7aabb60f28ba0290bf97ec7175cbUbuntu Security Notice 5791-1 - It was discovered that a race condition existed in the Android Binder IPC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. David Leadbeater discovered that the netfilter IRC protocol tracking implementation in the Linux Kernel incorrectly handled certain message payloads in some situations. A remote attacker could possibly use this to cause a denial of service or bypass firewall filtering.
c620604793b568d88ed5f96e800d17e391508664ad2fb783107dcfa6afb9a3f2Ubuntu Security Notice 5790-1 - It was discovered that the BPF verifier in the Linux kernel did not properly handle internal data structures. A local attacker could use this to expose sensitive information. It was discovered that a race condition existed in the Android Binder IPC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.
1d9560d5aef2cc859cd9a37a38fc80172a6ac7361f6977f86ca4cee9c00d13a5Android Binder use-after-free exploit.
8311b9bec91595d2878834472570bf80e596b211d30a53cac581c4c7c5478c85These are notes on further exploitation of the Android Binder use-after-free vulnerability as noted in CVE-2019-2215 and leveraged against Kernel 3.4.x and 3.18.x on Samsung Devices using Samsung Android and LineageOS.
e1a2e97063e031e1295f8213749b666e7722c92fde1fd5b0de1274b5316e32f1Android binder suffers from a use-after-free vulnerability in VMA via a race between reclaim and munmap.
30e7b19cade88138c58960f0d7e5f5b18ba1d4a346ffb29b3faf11ceb745b600The Task Scheduler can be made to delete a task after it's trigger has expired. No check is made to ensure the task file is not a junction which allows arbitrary files to be deleted by the system user leading to EoP.
c30785bf661d0d66daa78abe61a94c360587d6e66ae875cfc5a81dc4ec54b02eThe NtUserGetClipboardAccessToken win32k system call exposes the access token of the last user to lower-privileged users. It can also be used to open an anonymous impersonation thread token which normally OpenThreadToken shouldn't be able to do. This is a bypass of the fix for CVE-2015-0078.
9bcf7274e363f1dc579d9ed68048a01019d56cc2f841f1a4a04c182389196296The Microsoft\Windows\Shell\CreateObjectTask initializes a shell32 based ICreateObject COM server as local system. This is marked as being accessible from a normal user account so once created we can attach to it. The server only has one method, CreateObject which checks the CLSID against a list of known safe classes before allowing it to be instantiated. One of these classes is allows a user to set their account picture for the logon screen.
6a43091589e97afa78001dc6e8f0c4e88aed1de975f8578e7b0706c3c45901f3The Microsoft\Windows\Shell\CreateObjectTask initializes a shell32 based ICreateObject COM server as local system. This is marked as being accessible from a normal user account so once created we can attach to it. The server only has one method, CreateObject which checks the CLSID against a list of known safe classes before allowing it to be instantiated. One of these classes is a diagnostic class for setting synchronization implemented in SettingSync.dll.
6aef4dd16b7085d61fe94cd118f3ece652f9cd33df0722b63a4bf31f53557554An OS X IOKit kernel memory corruption issue occurs due to a bad bzero in IOBluetoothDevice.
f3d2f3b8051f90b86f0cfd263f09f98a7e0e04c1e1fcff20c13e3ca8f318052cAdobe Reader X and XI for windows suffers from an out-of-bounds write in CoolType.dll.
94d511f0b5c52532ba8c4998f0ae71bb9ef6d1788cd193c33ea257be138b259fThe Windows Kernel is subject to two related kernel-mode type-confusion vulnerabilities inside win32k!xxxRemoteReconnect. In both cases, a user-mode parameter passed to the syscall is incorrectly resolved to its underlying kernel representation via ObReferenceObjectByHandle passing NULL as the "ObType" field (rather than *IoFileTypeObject and *IoDeviceTypeObject respectively). Because the type is not checked, if a handle of a type other than a HANDLE to a file and a device are passed, the kernel incorrectly uses the underlying representation of the object as a PFILE_OBJECT and a PDEVICE_OBJECT, causing memory corruption in the kernel.
1fc87129199a0c6cd9e6a9fa146cc6e891c7331266896538d14fc884c57013baThe Install.framework runner suid root binary does not correctly account for the fact that Distributed Objects can be connected to by multiple clients at the same time. By connecting two proxy objects to an IFInstallRunner and calling [IFInstallRunner makeReceiptDirAt:asRoot:] in the first and passing a custom object as the directory name we can get a callback to our code just after the makeReceiptDirAt code has called seteuid(0);setguid(0) to regain privs. Since BSD priviledges are per-process this means that our other proxy object will now have euid 0 without having to provide an authorization reference. In this second proxy we can then just call runTaskSecurely and get a root shell before returning from the first proxy's callback function which will then drop privs.
1fd4f2bf985f7460d71d17680841dc5c059fe7c05b9a7ac1a776291868ff74e3The private Install.framework has a few helper executables in /System/Library/PrivateFrameworks/Install.framework/Resources, one of which is suid root and exploitable.
a34aa2485110ffeff9b63cf7063d71e3ac6548549f001e7517073b7f1ffaa5caInstall.framework has a suid root binary at /System/Library/PrivateFrameworks/Install.framework/Resources/runner that allows for arbitrary mkdir, unlink, and chown.
4b9ea14e8540ddbdec18fe305074224119369e420b4ed663a1f2bac393fa7f15The Windows Kernel is subject to a kernel-mode type-confusion vulnerability inside win32k!NtUserSetInformationThread due to referencing a user-mode handle via ObReferenceObjectByHandle with a "NULL" type specified (it should instead be using *LpcPortObjectType to protect against this vulnerability). This vulnerability can be triggered from inside CSRSS via the syscall win32k!NtUserSetInformationThread with ThreadInformationClass set to "UserThreadCsrApiPort" and the parameter of the syscall set to a HANDLE that is not an LPC object.
f08ca467d2241babc70e51da65057abb65b9ecf85249b35405cfc513910c45d6
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