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Files from regenrecht

First Active2007-02-24
Last Active2013-08-29
Firefox XMLSerializer Use After Free
Posted Aug 29, 2013
Authored by regenrecht, juan vazquez | Site metasploit.com

This Metasploit module exploits a vulnerability found on Firefox 17.0 (< 17.0.2), specifically an use after free of an Element object, when using the serializeToStream method with a specially crafted OutputStream defining its own write function. This Metasploit module has been tested successfully with Firefox 17.0.1 ESR, 17.0.1 and 17.0 on Windows XP SP3.

tags | exploit
systems | windows
advisories | CVE-2013-0753, OSVDB-89021
SHA-256 | f58157e305e4290dd4e3a5a36814841073537da1ad441ef4e8c63cdafe49db1c
Firefox 8/9 AttributeChildRemoved() Use-After-Free
Posted May 14, 2012
Authored by regenrecht | Site metasploit.com

This Metasploit module exploits a use-after-free vulnerability in Firefox 8/8.0.1 and 9/9.0.1. Removal of child nodes from the nsDOMAttribute can allow for a child to still be accessible after removal due to a premature notification of AttributeChildRemoved. Since mFirstChild is not set to NULL until after this call is made, this means the removed child will be accessible after it has been removed. By carefully manipulating the memory layout, this can lead to arbitrary code execution.

tags | exploit, arbitrary, code execution
advisories | CVE-2011-3659
SHA-256 | 0750feb0c6b04b3e549b1720e08f8946c5ad47833c85f2914592e886fe867eb0
Mozilla Firefox 7 / 8 Out-Of-Bounds Access
Posted May 8, 2012
Authored by regenrecht | Site metasploit.com

This Metasploit module exploits an out-of-bounds access flaw in Firefox 7 and 8 (versions 8.0.1 and below). The notification of nsSVGValue observers via nsSVGValue::NotifyObservers(x,y) uses a loop which can result in an out-of-bounds access to attacker-controlled memory. The mObserver ElementAt() function (which picks up pointers), does not validate if a given index is out of bound. If a custom observer of nsSVGValue is created, which removes elements from the original observer, and memory layout is manipulated properly, the ElementAt() function might pick up an attacker provided pointer, which can be leveraged to gain remote arbitrary code execution.

tags | exploit, remote, arbitrary, code execution
advisories | CVE-2011-3658
SHA-256 | 94acb924f037607a74196ffbd40dc6b26726a6b5e2a13e1caa089d6e3b0c2406
Mozilla Firefox 3.6.16 mChannel Use After Free
Posted Aug 10, 2011
Authored by regenrecht, Rh0 | Site metasploit.com

This Metasploit module exploits an use after free vulnerability in Mozilla Firefox 3.6.16. An OBJECT Element mChannel can be freed via the OnChannelRedirect method of the nsIChannelEventSink Interface. mChannel becomes a dangling pointer and can be reused when setting the OBJECTs data attribute. This Metasploit module uses heapspray with a minimal ROP chain to bypass DEP on Windows XP SP3.

tags | exploit
systems | windows
advisories | CVE-2011-0065, OSVDB-72085
SHA-256 | 5a6e9352732f91f5a6195ee7559b47f8ad02806dc4da4347ae745625e1ce1deb
Mozilla Firefox 3.6.16 mChannel Use After Free Exploit
Posted Aug 5, 2011
Authored by regenrecht, Rh0 | Site metasploit.com

This Metasploit module exploits an use after free vulnerability in Mozilla Firefox 3.6.16. An OBJECT Element mChannel can be freed via the OnChannelRedirect method of the nsIChannelEventSink Interface. mChannel becomes a dangling pointer and can be reused when setting the OBJECTs data attribute. This Metasploit module uses heapspray with a minimal ROP chain to bypass DEP on Windows XP SP3.

tags | exploit
systems | windows
advisories | CVE-2011-0065, OSVDB-72085
SHA-256 | ef3c210a23b0931c66277ed381e60454ce4fd75aaa512a25b6fab13362a9a96f
Mozilla Firefox "nsTreeRange" Dangling Pointer Vulnerability
Posted Jul 11, 2011
Authored by regenrecht, xero | Site metasploit.com

This Metasploit module exploits a code execution vulnerability in Mozilla Firefox 3.6.x <= 3.6.16 and 3.5.x <= 3.5.17 found in nsTreeSelection. By overwriting a subfunction of invalidateSelection it is possible to free the nsTreeRange object that the function currently operates on. Any further operations on the freed object can result in remote code execution. Utilizing the call setup the function provides it's possible to bypass DEP without the need for a ROP. Sadly this exploit is still either dependent on Java or bound by ASLR because Firefox doesn't employ any ASLR-free modules anymore.

tags | exploit, java, remote, code execution
advisories | CVE-2011-0073, OSVDB-72087
SHA-256 | bd0456bbc29964266747946f68aee47392e1ba55e7169a60b1f4a5db2ea04edd
iDEFENSE Security Advisory 2010-03-30.2
Posted Apr 1, 2010
Authored by iDefense Labs, regenrecht | Site idefense.com

iDefense Security Advisory 03.30.10 - Remote exploitation of a buffer overflow vulnerability in Oracle Corp.'s (formerly Sun Microsystems Inc.) Java Runtime Environment (JRE) could allow an attacker to execute arbitrary code with the privileges of the current user. The JRE is a platform that supports the execution of programs that are developed using the Java programming language. It is available for multiple platforms, including Windows, Linux and MacOS. The JRE platform also supports Java Applets, which can be loaded from Web pages. During the processing of an image file, user-controlled data is trusted and can result in an undersized allocation of a heap buffer. A copy operation into the heap buffer can lead to a heap overflow condition within the JRE. This condition may allow a remote attacker to subvert execution control and execute arbitrary code.

tags | advisory, java, remote, web, overflow, arbitrary
systems | linux, windows
SHA-256 | c8136fdeea2fd3eee123f117e7725124c2bbfe3eb2d36469fe6bc5b899969b0f
iDEFENSE Security Advisory 2009-10-28.1
Posted Oct 28, 2009
Authored by iDefense Labs, regenrecht | Site idefense.com

Remote exploitation of a buffer overflow in the Mozilla Foundation's libpr0n image processing library allows attackers to execute arbitrary code. The libpr0n GIF parser was designed using a state machine which is represented as a series of switch/case statements. One particularly interesting state, 'gif_image_header', is responsible for interpreting a single image/frame description record. A single GIF file may contain many images, each with a different color map associated. The problem lies in the handling of changes to the color map of subsequent images in a multiple-image GIF file. Memory reallocation is not managed correctly and can result in an exploitable heap overflow condition. iDefense confirmed the existence of this vulnerability using Mozilla Firefox versions 3.0.13 and 3.5.2 on 32-bit Windows XP SP3. Other versions, and potentially other applications using libpr0n, are suspected to be vulnerable.

tags | advisory, remote, overflow, arbitrary
systems | windows
advisories | CVE-2009-3373
SHA-256 | 2586d2a113c390f692bd4a3a7b5d2efa7e97552fe0c5a23297e4dd9eebfa000a
iDEFENSE Security Advisory 2009-08-04.1
Posted Aug 7, 2009
Authored by iDefense Labs, regenrecht | Site idefense.com

iDefense Security Advisory 08.04.09 - Remote exploitation of an integer overflow vulnerability in Sun Microsystems Inc.'s Java Runtime Environment (JRE) could allow an attacker to execute arbitrary code with the privileges of the current user.iDefense has confirmed the existence of this vulnerability in Sun Microsystems Inc.'s JRE version 1.6.0_13 for Windows and Linux. This vulnerability is different than the two previously reported iDefense Exclusives in the Pack200 code.

tags | advisory, java, remote, overflow, arbitrary
systems | linux, windows
SHA-256 | c26709edb9f66c32bb0b9aeb9550bc8c08f95ae8a5c6153f92d2906e79c5a986
iDEFENSE Security Advisory 2009-03-25.5
Posted Mar 27, 2009
Authored by iDefense Labs, regenrecht | Site idefense.com

iDefense Security Advisory 03.25.09 - Remote exploitation of an integer overflow vulnerability in Sun Microsystems Inc.'s Java Runtime Environment (JRE) could allow an attacker to execute arbitrary code with the privileges of the current user. The vulnerability occurs during decompression when, to calculate the size of a heap buffer, the code manipulates several integers in the file. The bounds of these values are not checked, and the arithmetic operations can overflow. This results in an undersized buffer being allocated, which leads to a heap-based buffer overflow. iDefense has confirmed the existence of this vulnerability in Sun Microsystem Inc.'s JRE version 1.6.0_11 for Windows and Linux.

tags | advisory, java, remote, overflow, arbitrary
systems | linux, windows
SHA-256 | 45f6f1ff008d7faa9a03ca57e555cc3f216424f6906bc9343bc797edf47efefa
iDEFENSE Security Advisory 2009-03-25.4
Posted Mar 27, 2009
Authored by iDefense Labs, regenrecht | Site idefense.com

iDefense Security Advisory 03.25.09 - Remote exploitation of an integer overflow vulnerability in Sun Microsystems Inc.'s Java Web Start could allow an attacker to execute arbitrary code with privileges of the current user. When JWS starts up, it displays a splash screen. By default, the image displayed on this splash screen is a GIF file provided by Sun, but it is possible for a JNLP file to provide its own splash logo. This allows an attacker to pass an arbitrary PNG file to the splash logo parsing code. The vulnerability occurs when parsing a PNG file used as part of the splash screen. When parsing the image, several values are taken from the file and used in an arithmetic operation that calculates the size of a heap buffer. This calculation can overflow, which results in an undersized buffer being allocated. This buffer is later overflowed with data from the file. iDefense has confirmed the existence of this vulnerability in Java Web Start version 1.6_11 on Windows and Linux. Previous versions may also be affected.

tags | advisory, java, remote, web, overflow, arbitrary
systems | linux, windows
SHA-256 | 2d38f70208475eab25a81127c23c1ab5bfa6f7b2fc50a6fd2c025f1f200bc126
iDEFENSE Security Advisory 2009-03-25.3
Posted Mar 27, 2009
Authored by iDefense Labs, regenrecht | Site idefense.com

iDefense Security Advisory 03.25.09 - Remote exploitation of a heap corruption vulnerability in Sun Microsystems Inc.'s Java JRE could allow an attacker to execute arbitrary code with the privileges of the current user. Values from the GIF file are used to calculate an offset to store data in a dynamic heap buffer. These values are not validated before use, which allows an attacker to store controlled data outside of the bounds of the allocated buffer. This leads to corruption of object pointers, which can be leveraged to execute arbitrary code. iDefense has confirmed the existence of this vulnerability in Java JRE version 1.6_11. Previous versions may also be affected.

tags | advisory, java, remote, arbitrary
SHA-256 | 9d4ab7a3c8a6bb2829e143ebc1d41ab732008cbd002ad7dc56ddee22724c937f
iDEFENSE Security Advisory 2009-03-25.2
Posted Mar 27, 2009
Authored by iDefense Labs, regenrecht | Site idefense.com

iDefense Security Advisory 03.25.09 - Remote exploitation of a heap corruption vulnerability in Sun Microsystems Inc.'s Java Web Start could allow an attacker to execute arbitrary code with privileges of the current user. When JWS starts up, it displays a splash screen. By default, the image displayed on this splash screen is a GIF file provided by Sun, but it is possible for a JNLP file to provide its own splash logo. This allows an attacker to pass an arbitrary GIF file to the splash logo parsing code to trigger the vulnerability. iDefense has confirmed the existence of this vulnerability in Java Web Start version 1.6_11 on Windows and Linux. Previous versions may also be affected.

tags | advisory, java, remote, web, arbitrary
systems | linux, windows
SHA-256 | 787894ddedba68df8734507477667b37055d76f5f44660bb4cc572517e2626dd
iDEFENSE Security Advisory 2008-12-02.3
Posted Dec 4, 2008
Authored by iDefense Labs, regenrecht | Site idefense.com

iDefense Security Advisory 12.02.08 - Remote exploitation of an integer overflow vulnerability in Sun Microsystems Inc.'s Java JRE could allow an attacker to execute arbitrary code with the privileges of the current user. The vulnerability occurs when reading the Pack200 compressed Jar file during decompression. In order to calculate the size of a heap buffer, the code multiplies and adds several integers. The bounds of these values are not checked, and the arithmetic operations can overflow. This results in an undersized buffer being allocated, which leads to a heap based buffer overflow. iDefense has confirmed the existence of this vulnerability in Sun Microsystem Inc.'s Java JRE version 1.6.0_07 for Windows and Linux. According to Sun, Pack200 was first introduced in JRE 1.5.0. The latest version of JRE 1.5, 1.5.0_15, does contain the vulnerable code, but the browser plugin does not handle Pack200 encoding. As such, exploitation through the browser does not appear to be possible with JRE 1.5.

tags | advisory, java, remote, overflow, arbitrary
systems | linux, windows
SHA-256 | dab9693cbfab156b58ccd573d6ed1ca78b9c9f6523942ff72a05ea968306ee0a
iDEFENSE Security Advisory 2008-12-02.2
Posted Dec 4, 2008
Authored by iDefense Labs, regenrecht | Site idefense.com

iDefense Security Advisory 12.02.08 - Remote exploitation of a memory corruption vulnerability in Sun Microsystems Inc.'s Java Web Start could allow an attacker to execute arbitrary code with the privileges of the current user. When JWS starts up, it displays a splash screen. By default, the image displayed on this splash screen is a GIF file provided by Sun, but it is possible for an attacker to pass an arbitrary GIF file to the splash logo parsing code. The vulnerability occurs when parsing this GIF file. The parsing code does not correctly validate several values in the GIF header. This lets an attacker write data outside of the bounds of an allocated heap buffer, which can lead to the execution of arbitrary code. iDefense has confirmed the existence of this vulnerability in Java Web Start version 1.6_10 and 1.6_07 on Windows and Linux. Previous versions may also be affected.

tags | advisory, java, remote, web, arbitrary
systems | linux, windows
SHA-256 | 790c9e0a41b95f39a04f9482a6b4f788552c5cbb8b7c9ddd89a814700672e139
iDEFENSE Security Advisory 2008-11-03.2
Posted Nov 4, 2008
Authored by iDefense Labs, regenrecht | Site idefense.com

iDefense Security Advisory 11.03.08 - Remote exploitation of a heap-based buffer overflow vulnerability in CUPS, as included in various vendors' operating system distributions, could allow an attacker to execute arbitrary code with the privileges of the affected service. iDefense has confirmed the existence of this vulnerability in CUPS version 1.3.7. Previous versions may also be affected.

tags | advisory, remote, overflow, arbitrary
SHA-256 | 74289ce1b549d1e7c2ecee94571823651dab5be08dae877ee06a68aafd81cb3f
iDEFENSE Security Advisory 2008-11-03.1
Posted Nov 4, 2008
Authored by iDefense Labs, regenrecht | Site idefense.com

iDefense Security Advisory 11.03.08 - Remote exploitation of an integer overflow vulnerability in CUPS, as included in various vendors operating system distributions, could allow an attacker to execute arbitrary code with the privileges of the affected service. The vulnerability exists within the WriteProlog() function in the "texttops" application. When calculating the page size used for storing PostScript data, multiple values that are derived from attacker-controlled content are used in a multiplication operation. This calculation can overflow, resulting in an incorrect result for the total page size. This value is then used to allocate a heap buffer that is later filled with attacker controlled content, resulting in a heap buffer overflow. iDefense has confirmed the existence of this vulnerability in CUPS version 1.3.7. Previous versions may also be affected.

tags | advisory, remote, overflow, arbitrary
SHA-256 | 4b48360e997204c4042d31ac8dfb6672aba83c8ea1c7480c62bc5c82e1b3afce
Zero Day Initiative Advisory 08-067
Posted Oct 11, 2008
Authored by Tipping Point, regenrecht | Site zerodayinitiative.com

A vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple CUPS. Authentication is not required to exploit this vulnerability. The specific flaw exists in the Hewlett-Packard Graphics Language filter. Inadequate bounds checking on the pen width and pen color opcodes result in an arbitrary memory overwrite allowing for the execution of arbitrary code as the "hgltops" process uid.

tags | advisory, remote, arbitrary
systems | apple
advisories | CVE-2008-3641
SHA-256 | 43b38342476d71a0e4742db59587e779dbd1fc675da878775ea4e5dd7e5b6375
iDEFENSE Security Advisory 2008-06-11.5
Posted Jun 11, 2008
Authored by iDefense Labs, regenrecht | Site idefense.com

iDefense Security Advisory 06.11.08 - Local exploitation of an information disclosure vulnerability in the X.Org X server, as included in various vendors' operating system distributions, could allow an attacker to gain access to sensitive information stored in server memory. The vulnerability exists when creating a Pixmap in the fbShmPutImage() function. The width and height of the Pixmap, which are controlled by the user, are not properly validated to ensure that the Pixmap they define are within the bounds of the shared memory segment. This allows an attacker to read arbitrary areas of memory in the X server process. iDefense has confirmed the existence of this vulnerability in X server 1.4 included with X.org X11R7.3, with all patches as of 03/01/08 applied. Previous versions may also be affected.

tags | advisory, arbitrary, local, info disclosure
advisories | CVE-2008-1379
SHA-256 | f996dc34179e536c8cec80e7e1ab0c8b3841cce7dc4a40b66986828681ff031d
iDEFENSE Security Advisory 2008-06-11.4
Posted Jun 11, 2008
Authored by iDefense Labs, regenrecht | Site idefense.com

iDefense Security Advisory 06.11.08 - Local exploitation of multiple memory corruption vulnerabilities in the X.Org X server, as included in various vendors' operating system distributions, could allow an attacker to execute arbitrary code with the privileges of the X server, typically root. iDefense has confirmed the existence of these vulnerabilities in X server 1.4 included with X.org X11R7.3, with all patches as of 03/01/08 applied. Previous versions may also be affected.

tags | advisory, arbitrary, local, root, vulnerability
advisories | CVE-2008-1377
SHA-256 | 23de174b019234410fd1fed2d2601eac065e96395b47d5efd0aa7b395e84b241
iDEFENSE Security Advisory 2008-06-11.3
Posted Jun 11, 2008
Authored by iDefense Labs, regenrecht | Site idefense.com

iDefense Security Advisory 06.11.08 - Local exploitation of an integer overflow vulnerability in the X.Org X server, as included in various vendors' operating system distributions, could allow an attacker to execute arbitrary code with the privileges of the X server, typically root. iDefense has confirmed the existence of this vulnerability in X.org X11 version R7.3, with all patches as of 03/01/08 applied. Previous versions may also be affected.

tags | advisory, overflow, arbitrary, local, root
advisories | CVE-2008-2362
SHA-256 | 01fb73cd7aa428fb3937fe703ea544212b782097950d51a7c35ef592e91f7208
iDEFENSE Security Advisory 2008-06-11.2
Posted Jun 11, 2008
Authored by iDefense Labs, regenrecht | Site idefense.com

iDefense Security Advisory 06.11.08 - Local exploitation of an integer overflow vulnerability in the X.Org X server, as included in various vendors' operating system distributions, could allow an attacker to create a denial of service (DoS) condition on the affected X server. The vulnerability exists within the ProcRenderCreateCursor() function. When parsing a client request, values are taken from the request and used in an arithmetic operation that calculates the size of a dynamic buffer. This calculation can overflow, which results in an undersized buffer being allocated. This leads to an invalid memory access, which crashes the X server. iDefense has confirmed the existence of these this vulnerability in X.org X11 version R7.3, with all patches as of 03/01/08 applied. Previous versions may also be affected.

tags | advisory, denial of service, overflow, local
advisories | CVE-2008-2361
SHA-256 | 8ee084f756e81279ec599dbaa545459efdc06ef3a6da7b39b149058126cb1b07
iDEFENSE Security Advisory 2008-06-11.1
Posted Jun 11, 2008
Authored by iDefense Labs, regenrecht | Site idefense.com

iDefense Security Advisory 06.11.08 - Local exploitation of an integer overflow vulnerability in the X.Org X server, as included in various vendors' operating system distributions, could allow an attacker to execute arbitrary code with the privileges of the X server, typically root. The vulnerability exists within the AllocateGlyph() function, which is called from several request handlers in the render extension. This function takes several values from the request, and multiplies them together to calculate how much memory to allocate for a heap buffer. This calculation can overflow, which leads to a heap overflow. iDefense has confirmed the existence of this vulnerability in X server 1.4 included with X.org X11R7.3, with all patches as of 03/01/08 applied. Previous versions may also be affected.

tags | advisory, overflow, arbitrary, local, root
advisories | CVE-2008-2360
SHA-256 | 8af2a005f2bcb28930e75e027ff46599b31bf9c3361ab9c6cb6a2f8bbff1df5d
iDEFENSE Security Advisory 2008-06-10.4
Posted Jun 11, 2008
Authored by iDefense Labs, regenrecht | Site idefense.com

iDefense Security Advisory 06.10.08 - Remote exploitation of multiple heap overflow vulnerabilities in the FreeType2 library, as included in various vendors' operating systems, could allow an attacker to execute arbitrary code with the privileges of the affected application. iDefense has confirmed the existence of these vulnerabilities in FreeType2 version 2.3.5. Previous versions may also be affected.

tags | advisory, remote, overflow, arbitrary, vulnerability
advisories | CVE-2008-1808
SHA-256 | 9a4ef45fbc6785b0af6fa5c6bf4ca83872c3fb8be357ebe78481f18cc310c0fd
iDEFENSE Security Advisory 2008-06-10.3
Posted Jun 11, 2008
Authored by iDefense Labs, regenrecht | Site idefense.com

iDefense Security Advisory 06.10.08 - Remote exploitation of a memory corruption vulnerability in the FreeType2 library, as included in various vendors' operating systems, could allow an attacker to execute arbitrary code with the privileges of the affected application. iDefense has confirmed the existence of this vulnerability in FreeType2 version 2.3.5. Previous versions may also be affected.

tags | advisory, remote, arbitrary
advisories | CVE-2008-1807
SHA-256 | f2c22e428f5c55adfcda2877e8130ea56ec91d743b89e502b2f96e1f422a73e6
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