Vivotek IP Cameras - Remote Stack Overflow (PoC)

STX Subject: Vivotek IP Cameras - Remote Stack Overflow Researcher: bashis September-October 2017 PoC: https://github.com/mcw0/PoC Release date: November 13, 2017 Full Disclosure: 43 days Attack Vector: Remote Authentication: Anonymous no credentials needed Firmware Vulnerable: Only 2017 versions...

The vulnerability of the microprogrammed software of the Philips In.Sight B120/37 wireless video camera lies in the presence of pre-installed accounts, which allow a intruder to gain access to the device.

The vulnerability of the microprogrammed software of the Philips In.Sight B120/37 wireless video camera is related to the presence of preset user accounts for access via Telnet or UART accounts like “root”, “admin”, and “mg3500” with passwords “b120root”, “/ADMIN/”, and “merlin” respectively as...

CVE-2017-16565

Cross-Site Request Forgery CSRF in /cgi-bin/login on Vonage Grandstream HT802 devices allows attackers to authenticate a user via the login screen using the default password of 123 and submit arbitrary requests...

Xen: Privilege Escalation

Background Xen is a bare-metal hypervisor. Description In CIRRUSBLTMODEMEMSYSSRC mode the bitblit copy routine cirrusbitbltcputovideo fails to check wethehr the specified memory region is safe. Impact A local attacker could potentially execute arbitrary code with privileges of Xen QEMU process on...

Cirrus VGA Heap overflow via display refresh

ISSUE DESCRIPTION When a graphics update command gets passed to the VGA emulator, there are 3 possible modes that can be used to update the display: blank - Clears the display text - Treats the display as showing text graph - Treats the display as showing graphics After the display geometry gets...

xen-tools -- Cirrus VGA Heap overflow via display refresh

The Xen Project reports: A privileged user within the guest VM can cause a heap overflow in the device model process, potentially escalating their privileges to that of the device model process...

DEBIAN-CVE-2016-9637

The 1 ioportread and 2 ioportwrite functions in Xen, when qemu is used as a device model within Xen, might allow local x86 HVM guest OS administrators to gain qemu process privileges via vectors involving an out-of-range ioport access...

CVE-2016-9637

The 1 ioportread and 2 ioportwrite functions in Xen, when qemu is used as a device model within Xen, might allow local x86 HVM guest OS administrators to gain qemu process privileges via vectors involving an out-of-range ioport access...

UBUNTU-CVE-2016-9637

The 1 ioportread and 2 ioportwrite functions in Xen, when qemu is used as a device model within Xen, might allow local x86 HVM guest OS administrators to gain qemu process privileges via vectors involving an out-of-range ioport access...

CVE-2016-9637

CVE-2016-9637 affects Xen when qemu is used as a device model; the ioport_read/ioport_write paths can mishandle a 32-bit ioport address, enabling a local x86 HVM guest administrator to escalate privileges to the qemu process due to out-of-range ioport access. The issue is tied to out-of-bounds ar...

WNC01WH vulnerable to denial-of-service (DoS)

Overview WNC01WH provided by BUFFALO INC. is a network camera. WNC01WH contains a denial-of-service DoS vulnerability. Toshitsugu Yoneyama of Mitsui Bussan Secure Directions, Inc. reported this vulnerability to IPA. JPCERT/CC coordinated with the developer under Information Security Early Warning...

FreeBSD : xen-kernel -- ioreq handling possibly susceptible to multiple read issue (6aa2d135-b40e-11e5-9728-002590263bf5)

The Xen Project reports : Single memory accesses in source code can be translated to multiple ones in machine code by the compiler, requiring special caution when accessing shared memory. Such precaution was missing from the hypervisor code inspecting the state of I/O requests sent to the device...

ioreq handling possibly susceptible to multiple read issue

ISSUE DESCRIPTION Single memory accesses in source code can be translated to multiple ones in machine code by the compiler, requiring special caution when accessing shared memory. Such precaution was missing from the hypervisor code inspecting the state of I/O requests sent to the device model fo...

xen-kernel -- ioreq handling possibly susceptible to multiple read issue

The Xen Project reports: Single memory accesses in source code can be translated to multiple ones in machine code by the compiler, requiring special caution when accessing shared memory. Such precaution was missing from the hypervisor code inspecting the state of I/O requests sent to the device...

FreeBSD : xen-tools -- libxl fails to honour readonly flag on disks with qemu-xen (301b04d7-881c-11e5-ab94-002590263bf5)

"The Xen Project reports : Callers of libxl can specify that a disk should be read-only to the guest. However, there is no code in libxl to pass this information to qemu-xen the upstream-based qemu %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The descriptive text and package checks in thi...

CVE-2015-7311

CVE-2015-7311 affects Xen’s libxl when using the qemu-xen device model; Xen 4.1.x–4.6.x did not properly enforce the readonly flag on disks, allowing local guest users to write to a read-only disk image. Public advisories (GLSA-2016-04, openSUSE/SUSE advisories) list this vulnerability among seve...

libxl fails to honour readonly flag on disks with qemu-xen

ISSUE DESCRIPTION Callers of libxl can specify that a disk should be read-only to the guest. However, there is no code in libxl to pass this information to qemu-xen the upstream-based qemu; and indeed there is no way in qemu to make a disk read-only. The vulnerability is exploitable only via...

Xen XEN_DOMCTL_memory_mapping hypercall local denial of service vulnerability

Xen is a virtualization technology for the Linux kernel that allows multiple operating systems to run simultaneously. A security vulnerability in Xen XENDOMCTLmemorymapping hypercall allows local X86 HVM domain users to conduct denial-of-service attacks via special device model requests when usin...

CVE-2015-2752

The XENDOMCTLmemorymapping hypercall in Xen 3.2.x through 4.5.x, when using a PCI passthrough device, is not preemptible, which allows local x86 HVM domain users to cause a denial of service host CPU consumption via a crafted request to the device model qemu-dm...

Cross site request forgery (csrf)

The XENDOMCTLmemorymapping hypercall in Xen 3.2.x through 4.5.x, when using a PCI passthrough device, is not preemptible, which allows local x86 HVM domain users to cause a denial of service host CPU consumption via a crafted request to the device model qemu-dm...