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Files from laginimaineb

First Active2016-05-02
Last Active2018-06-28
Samsung OTP TrustZone Buffer Overflow
Posted Jan 3, 2017
Authored by Google Security Research, laginimaineb

As a part of the KNOX extensions available on Samsung devices, Samsung provides a TrustZone trustlet which allows the generation of OTP tokens. The OTP TrustZone trustlet suffers from a stack buffer overflow.

tags | exploit, overflow
MD5 | 5630aec452992f4eccfb870ec3a4cbc7
TIMA Arbitrary Kernel Module Verification Bypass
Posted Jan 3, 2017
Authored by Google Security Research, laginimaineb

Samsung's lkmauth feature suffers from a kernel module verification bypass vulnerability.

tags | advisory, kernel, bypass
MD5 | 94c50ebfbad9ceb87ec411b72014c425
Samsung OTP Service Heap Overflow
Posted Jan 3, 2017
Authored by Google Security Research, laginimaineb

As a part of the KNOX extensions available on Samsung devices, Samsung provides a new service which allows the generation of OTP tokens and suffers from a heap overflow vulnerability.

tags | exploit, overflow
MD5 | 078ec7131a5d786edf86447fbce0664f
Samsung OTP OTP_GET_CRYPTO_DERIVED_KEY Buffer Overflow
Posted Jan 3, 2017
Authored by Google Security Research, laginimaineb

Stack buffer overflow and information disclosure vulnerabilities exist in the Samsung OTP TrustZone trustlet via OTP_GET_CRYPTO_DERIVED_KEY.

tags | advisory, overflow, vulnerability, info disclosure
MD5 | 718aa9c0eebb984d13427c2fec6e4280
Android tlc_server Heap Overflow
Posted Dec 29, 2016
Authored by Google Security Research, laginimaineb

Android suffers from a heap overflow vulnerability in the tlc_server via the LOAD_TUI_RESOURCE command.

tags | advisory, overflow
MD5 | eaa1fa22c33faa9c41779a49bc7c8169
Android system_server Code Loading Bypass
Posted Dec 2, 2016
Authored by Google Security Research, laginimaineb

As of Android Nougat, a new set of SELinux rules have been added which are designed to prevent system_server from loading arbitrary code into its address-space. However, as system_server is extremely privileged, there are a few vectors through which it may still load arbitrary code, thus bypassing the mitigation mentioned above.

tags | advisory, arbitrary
MD5 | 062fecbf9fe448b888fe819703696e28
Android Mitigation Bypass
Posted Dec 2, 2016
Authored by Google Security Research, laginimaineb

Because of a design bug in IOMX, the user-supplied sizes in the GET_PARAMETER and SET_PARAMETER calls ar e discarded before calling in to the responsible OMX code-paths. This has led to a variety of overflow-type bugs.

tags | advisory, overflow
advisories | CVE-2016-6717
MD5 | 2149438ed8ba4641a33b0380779c9f88
Android android.graphics.Bitmap Inter-Process munmap
Posted Dec 2, 2016
Authored by Google Security Research, laginimaineb

Bitmap objects can be passed between processes by flattening them to a Parcel in one process and un-flattening them in another. In order to conserve memory, there exists a code path which allows Bitmaps to be shared between processes by providing an ashmem-mapped file descriptor containing the Bitmap's raw pixel data. The android.graphics.Bitmap class illegally assumes that the size of the ashmem region provided by the user matches the actual underlying size of the Bitmap.

tags | exploit
advisories | CVE-2016-6707
MD5 | 4b0aa59901658c474356f9728685a71e
QSEE PRDiag* Privilege Escalation
Posted May 2, 2016
Authored by laginimaineb

Local privilege escalation exploit for Qualcomm's Secure Execution Environment (QSEE) that leverages PRDiag* commands.

tags | exploit, local
systems | linux
advisories | CVE-2015-6639
MD5 | 55a25c43b01fb4396d7212d488b2a910
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