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Operating System: OpenBSD

OpenBSD at Stack Clash Privilege Escalation
Posted Jun 30, 2017
Site qualys.com

OpenBSD 'at' local stack clash privilege escalation exploit.

tags | exploit, local
systems | openbsd
advisories | CVE-2017-1000373
MD5 | acb82c1ba12f5809cb4718f34c7c4f71
rldns 1.1
Posted Mar 23, 2017
Authored by Ringlayer | Site ringlayer.net

rldns is an open source lightweight DNS server for linux, netbsd, freebsd, and openbsd. Runs on x86 and x86_64 architectures.

Changes: Various updates.
tags | tool, x86
systems | linux, netbsd, unix, freebsd, bsd, openbsd
MD5 | fa1b4c747d0ea7b13c02993fbb0336e7
OpenSSH 7.5p1
Posted Mar 20, 2017
Authored by Damien Miller | Site openssh.com

This is a Linux/portable port of OpenBSD's excellent OpenSSH. OpenSSH is based on the last free version of Tatu Ylonen's SSH with all patent-encumbered algorithms removed, all known security bugs fixed, new features reintroduced, and many other clean-ups.

Changes: Multiple updates.
tags | tool, encryption
systems | linux, unix, openbsd
MD5 | 652fdc7d8392f112bef11cacf7e69e23
rldns 1.0
Posted Mar 13, 2017
Authored by Ringlayer | Site ringlayer.net

rldns is an open source lightweight DNS server for linux, netbsd, freebsd, and openbsd. Runs on x86 and x86_64 architectures.

tags | tool, x86
systems | linux, netbsd, unix, freebsd, bsd, openbsd
MD5 | 0ff54b024b64c4bf409da6fc84703fec
OpenBSD HTTP Server 6.0 Denial Of Service
Posted Feb 6, 2017
Authored by Pierre Kim

OpenBSD HTTP server versions up to 6.0 suffer from a denial of service vulnerability.

tags | exploit, web, denial of service
systems | openbsd
advisories | CVE-2017-5850
MD5 | a57c0e5bc7595c3696deb558b8b3eb1f
OpenSSH 7.4p1
Posted Dec 19, 2016
Authored by Damien Miller | Site openssh.com

This is a Linux/portable port of OpenBSD's excellent OpenSSH. OpenSSH is based on the last free version of Tatu Ylonen's SSH with all patent-encumbered algorithms removed, all known security bugs fixed, new features reintroduced, and many other clean-ups.

Changes: Multiple updates.
tags | tool, encryption
systems | linux, unix, openbsd
MD5 | b2db2a83caf66a208bb78d6d287cdaa3
OpenSSH 7.3p1
Posted Aug 2, 2016
Authored by Damien Miller | Site openssh.com

This is a Linux/portable port of OpenBSD's excellent OpenSSH. OpenSSH is based on the last free version of Tatu Ylonen's SSH with all patent-encumbered algorithms removed, all known security bugs fixed, new features reintroduced, and many other clean-ups.

Changes: Multiple updates including a security fix.
tags | tool, encryption
systems | linux, unix, openbsd
advisories | CVE-2016-6210
MD5 | 4d88194aa227646df970e71a08943de5
Red Hat Security Advisory 2016-0466-01
Posted Mar 22, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-0466-01 - OpenSSH is OpenBSD's SSH protocol implementation. These packages include the core files necessary for both the OpenSSH client and server. It was discovered that the OpenSSH server did not sanitize data received in requests to enable X11 forwarding. An authenticated client with restricted SSH access could possibly use this flaw to bypass intended restrictions. It was discovered that the OpenSSH sshd daemon did not check the list of keyboard-interactive authentication methods for duplicates. A remote attacker could use this flaw to bypass the MaxAuthTries limit, making it easier to perform password guessing attacks.

tags | advisory, remote, protocol
systems | linux, redhat, openbsd
advisories | CVE-2015-5600, CVE-2016-3115
MD5 | e44b5828174b738b958cd4b364fac26f
Red Hat Security Advisory 2016-0465-01
Posted Mar 22, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-0465-01 - OpenSSH is OpenBSD's SSH protocol implementation. These packages include the core files necessary for both the OpenSSH client and server. It was discovered that the OpenSSH server did not sanitize data received in requests to enable X11 forwarding. An authenticated client with restricted SSH access could possibly use this flaw to bypass intended restrictions. An access flaw was discovered in OpenSSH; the OpenSSH client did not correctly handle failures to generate authentication cookies for untrusted X11 forwarding. A malicious or compromised remote X application could possibly use this flaw to establish a trusted connection to the local X server, even if only untrusted X11 forwarding was requested.

tags | advisory, remote, local, protocol
systems | linux, redhat, openbsd
advisories | CVE-2016-1908, CVE-2016-3115
MD5 | 758ad6357c15b1959d34616f06b740c8
OpenSSH 7.2p2
Posted Mar 12, 2016
Authored by Damien Miller | Site openssh.com

This is a Linux/portable port of OpenBSD's excellent OpenSSH. OpenSSH is based on the last free version of Tatu Ylonen's SSH with all patent-encumbered algorithms removed, all known security bugs fixed, new features reintroduced, and many other clean-ups.

Changes: Added sanitization for characters destined for xauth(1).
tags | tool, encryption
systems | linux, unix, openbsd
MD5 | 13009a9156510d8f27e752659075cced
OpenSSH 7.2p1
Posted Feb 29, 2016
Authored by Damien Miller | Site openssh.com

This is a Linux/portable port of OpenBSD's excellent OpenSSH. OpenSSH is based on the last free version of Tatu Ylonen's SSH with all patent-encumbered algorithms removed, all known security bugs fixed, new features reintroduced, and many other clean-ups.

Changes: Skip PrintLastLog in config dump mode. Added a note about using xlc on AIX. Various other bug fixes.
tags | tool, encryption
systems | linux, openbsd
MD5 | b984775f0cfff1f7ff18b8797fce8a28
OpenSSH 7.1p2
Posted Jan 15, 2016
Authored by Damien Miller | Site openssh.com

This is a Linux/portable port of OpenBSD's excellent OpenSSH. OpenSSH is based on the last free version of Tatu Ylonen's SSH with all patent-encumbered algorithms removed, all known security bugs fixed, new features reintroduced, and many other clean-ups.

Changes: Forcibly disables roaming support in the client. Various other bug fixes.
tags | tool, encryption
systems | linux, unix, openbsd
MD5 | 4d8547670e2a220d5ef805ad9e47acf2
Red Hat Security Advisory 2016-0043-01
Posted Jan 15, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-0043-01 - OpenSSH is OpenBSD's SSH protocol implementation. These packages include the core files necessary for both the OpenSSH client and server. An information leak flaw was found in the way the OpenSSH client roaming feature was implemented. A malicious server could potentially use this flaw to leak portions of memory of a successfully authenticated OpenSSH client. A buffer overflow flaw was found in the way the OpenSSH client roaming feature was implemented. A malicious server could potentially use this flaw to execute arbitrary code on a successfully authenticated OpenSSH client if that client used certain non-default configuration options.

tags | advisory, overflow, arbitrary, protocol
systems | linux, redhat, openbsd
advisories | CVE-2016-0777, CVE-2016-0778
MD5 | a0fc44e10d1f9f33e3f6de113c32989d
Red Hat Security Advisory 2015-2088-06
Posted Nov 20, 2015
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2015-2088-06 - OpenSSH is OpenBSD's SSH protocol implementation. These packages include the core files necessary for both the OpenSSH client and server. A flaw was found in the way OpenSSH handled PAM authentication when using privilege separation. An attacker with valid credentials on the system and able to fully compromise a non-privileged pre-authentication process using a different flaw could use this flaw to authenticate as other users. A use-after-free flaw was found in OpenSSH. An attacker able to fully compromise a non-privileged pre-authentication process using a different flaw could possibly cause sshd to crash or execute arbitrary code with root privileges.

tags | advisory, arbitrary, root, protocol
systems | linux, redhat, openbsd
advisories | CVE-2015-5600, CVE-2015-6563, CVE-2015-6564
MD5 | ad8e3bf7c82c570e9806fc41b7c33270
OpenBSD net-snmp Information Disclosure
Posted Nov 13, 2015
Authored by Pierre Kim

OpenBSD net-snmp suffers from a credential and information disclosure vulnerability.

tags | exploit, info disclosure
systems | openbsd
advisories | CVE-2015-8100
MD5 | 58ae670019233a11582c38947b6d86cc
OpenSSH 7.1p1
Posted Aug 25, 2015
Authored by Damien Miller | Site openssh.com

This is a Linux/portable port of OpenBSD's excellent OpenSSH. OpenSSH is based on the last free version of Tatu Ylonen's SSH with all patent-encumbered algorithms removed, all known security bugs fixed, new features reintroduced, and many other clean-ups.

Changes: This is a bugfix release. OpenSSH 7.0 contained a logic error in PermitRootLogin= prohibit-password/without-password that could, depending on compile-time configuration, permit password authentication to root while preventing other forms of authentication. This problem was reported by Mantas Mikulenas.
tags | tool, encryption
systems | linux, unix, openbsd
MD5 | 8709736bc8a8c253bc4eeb4829888ca5
OpenSSH 7.0p1
Posted Aug 13, 2015
Authored by Damien Miller | Site openssh.com

This is a Linux/portable port of OpenBSD's excellent OpenSSH. OpenSSH is based on the last free version of Tatu Ylonen's SSH with all patent-encumbered algorithms removed, all known security bugs fixed, new features reintroduced, and many other clean-ups.

Changes: This is primarily a bugfix release.
tags | tool, encryption
systems | linux, unix, openbsd
MD5 | 831883f251ac34f0ab9c812acc24ee69
OpenBSD Local Denial Of Service
Posted Jul 28, 2015
Authored by Maxime Villard

OpenBSD local memory leak denial of service proof of concept exploit.

tags | exploit, denial of service, local, proof of concept, memory leak
systems | openbsd
MD5 | abcf35a318f88ee51e0aae5b82ba1757
Western Digital Arkeia Remote Code Execution
Posted Jul 13, 2015
Authored by xistence | Site metasploit.com

This Metasploit module exploits a code execution flaw in Western Digital Arkeia version 11.0.12 and below. The vulnerability exists in the 'arkeiad' daemon listening on TCP port 617. Because there are insufficient checks on the authentication of all clients, this can be bypassed. Using the ARKFS_EXEC_CMD operation it's possible to execute arbitrary commands with root or SYSTEM privileges. The daemon is installed on both the Arkeia server as well on all the backup clients. The module has been successfully tested on Windows, Linux, OSX, FreeBSD and OpenBSD.

tags | exploit, arbitrary, root, tcp, code execution
systems | linux, windows, freebsd, openbsd, apple
MD5 | ebae27aa7c351921d3e11dbd4a53e360
OpenSSH 6.9p1
Posted Jul 1, 2015
Authored by Damien Miller | Site openssh.com

This is a Linux/portable port of OpenBSD's excellent OpenSSH. OpenSSH is based on the last free version of Tatu Ylonen's SSH with all patent-encumbered algorithms removed, all known security bugs fixed, new features reintroduced, and many other clean-ups.

Changes: This is primarily a bugfix release.
tags | tool, encryption
systems | linux, unix, openbsd
MD5 | 0b161c44fc31fbc6b76a6f8ae639f16f
OpenBSD 5.7 sys_execve() Denial Of Service
Posted Jun 14, 2015
Authored by Bruno Luiz

OpenBSD versions 5.7 and below local kernel panic sys_execve() denial of service exploit.

tags | exploit, denial of service, kernel, local
systems | openbsd
MD5 | c0b2ee2ad53ffa8e5824528d011b3805
OpenBSD 5.6 Kernel Panic
Posted Apr 21, 2015
Authored by nitr0us

Proof of concept exploit for OpenBSD versions 5.6 and below that causes a kernel panic in sys/uvm/uvm_map.c.

tags | exploit, kernel, proof of concept
systems | openbsd
MD5 | 53f6c88db8a8f280bb35ab1ebc15dea3
OpenSSH 6.8p1
Posted Mar 19, 2015
Authored by Damien Miller | Site openssh.com

This is a Linux/portable port of OpenBSD's excellent OpenSSH. OpenSSH is based on the last free version of Tatu Ylonen's SSH with all patent-encumbered algorithms removed, all known security bugs fixed, new features reintroduced, and many other clean-ups.

Changes: This is a major release, containing a number of new features as well as a large internal re-factoring.
tags | encryption
systems | linux, unix, openbsd
MD5 | 08f72de6751acfbd0892b5f003922701
Red Hat Security Advisory 2015-0425-02
Posted Mar 5, 2015
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2015-0425-02 - OpenSSH is OpenBSD's SSH protocol implementation. These packages include the core files necessary for both the OpenSSH client and server. It was discovered that OpenSSH clients did not correctly verify DNS SSHFP records. A malicious server could use this flaw to force a connecting client to skip the DNS SSHFP record check and require the user to perform manual host verification of the DNS SSHFP record. It was found that when OpenSSH was used in a Kerberos environment, remote authenticated users were allowed to log in as a different user if they were listed in the ~/.k5users file of that user, potentially bypassing intended authentication restrictions.

tags | advisory, remote, protocol
systems | linux, redhat, openbsd
advisories | CVE-2014-2653, CVE-2014-9278
MD5 | c190f95272450de057818506fdcee87b
OpenBSD 5.5 Local Kernel Panic
Posted Oct 23, 2014
Authored by nitr0us

OpenBSD versions 5.5 and below local kernel panic proof of concept exploit for i386.

tags | exploit, kernel, local, proof of concept
systems | openbsd
MD5 | aaefb75182a2d333bb87cb24a8cccfa7
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