This is a whitepaper tutorial that describes steps taken to identify post-authentication remote code execution vulnerabilities in Symantec Web Gateway version 5.0.2.8.

Whitepaper called Bypassing Root Detection Mechanism. Written in Persian.

Whitepaper called Blind CreateRemoteThread Privilege Escalation.

Ubuntu Security Notice 4315-1 - Maximilien Bourgeteau discovered that the Apport lock file was created with insecure permissions. This could allow a local attacker to escalate their privileges via a symlink attack. Maximilien Bourgeteau discovered a race condition in Apport when setting crash report permissions. This could allow a local attacker to read arbitrary files via a symlink attack.

Ubuntu Security Notice 4319-1 - It was discovered that the IPMI message handler implementation in the Linux kernel did not properly deallocate memory in certain situations. A local attacker could use this to cause a denial of service. Al Viro discovered that the vfs layer in the Linux kernel contained a use- after-free vulnerability. A local attacker could use this to cause a denial of service or possibly expose sensitive information. Various other issues were also addressed.

Ubuntu Security Notice 4318-1 - Al Viro discovered that the vfs layer in the Linux kernel contained a use- after-free vulnerability. A local attacker could use this to cause a denial of service or possibly expose sensitive information. Gustavo Romero and Paul Mackerras discovered that the KVM implementation in the Linux kernel for PowerPC processors did not properly keep guest state separate from host state. A local attacker in a KVM guest could use this to cause a denial of service. Various other issues were also addressed.

Ubuntu Security Notice 4320-1 - Al Viro discovered that the vfs layer in the Linux kernel contained a use- after-free vulnerability. A local attacker could use this to cause a denial of service or possibly expose sensitive information.

Ubuntu Security Notice 4325-1 - It was discovered that the IPMI message handler implementation in the Linux kernel did not properly deallocate memory in certain situations. A local attacker could use this to cause a denial of service. Al Viro discovered that the vfs layer in the Linux kernel contained a use- after-free vulnerability. A local attacker could use this to cause a denial of service or possibly expose sensitive information. Various other issues were also addressed.

Ubuntu Security Notice 4324-1 - Al Viro discovered that the vfs layer in the Linux kernel contained a use- after-free vulnerability. A local attacker could use this to cause a denial of service or possibly expose sensitive information. Shijie Luo discovered that the ext4 file system implementation in the Linux kernel did not properly check for a too-large journal size. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service. Various other issues were also addressed.

Andrew Honig reported a flaw in the way KVM (Kernel-based Virtual Machine) emulated the IOAPIC. A privileged guest user could exploit this flaw to read host memory or cause a denial of service (crash the host). It was discovered that the KVM implementation in the Linux kernel, when paravirtual TLB flushes are enabled in guests, the hypervisor in some situations could miss deferred TLB flushes or otherwise mishandle them. An attacker in a guest VM could use this to expose sensitive information (read memory from another guest VM). Al Viro discovered that the vfs layer in the Linux kernel contained a use- after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory).

This Metasploit module will bypass UAC on Windows 8-10 by hijacking a special key in the Registry under the Current User hive, and inserting a custom command that will get invoked when any binary (.exe) application is launched. But slui.exe is an auto-elevated binary that is vulnerable to file handler hijacking. When we run slui.exe with changed Registry key (HKCU:SoftwareClassesexefileshellopencommand), it will run our custom command as Admin instead of slui.exe. The module modifies the registry in order for this exploit to work. The modification is reverted once the exploitation attempt has finished. The module does not require the architecture of the payload to match the OS. If specifying EXE::Custom your DLL should call ExitProcess() after starting the payload in a different process.

Oracle WebLogic version 12.1.2.0 RMI registry UnicastRef object java deserialization remote code execution exploit.

This Metasploit module modifies a registry key, but cleans up the key once the payload has been invoked. The module does not require the architecture of the payload to match the OS.

Ubuntu Security Notice 3939-1 - Michael Hanselmann discovered that Samba incorrectly handled registry files. A remote attacker could possibly use this issue to create new registry files outside of the share, contrary to expectations.

Ubuntu Security Notice 3939-2 - USN-3939-1 fixed a vulnerability in Samba. This update provides the corresponding update for Ubuntu 12.04 ESM. Michael Hanselmann discovered that Samba incorrectly handled registry files. A remote attacker could possibly use this issue to create new registry files outside of the share, contrary to expectations. Various other issues were also addressed.

Ubuntu Security Notice 3975-1 - It was discovered that the BigDecimal implementation in OpenJDK performed excessive computation when given certain values. An attacker could use this to cause a denial of service. Corwin de Boor and Robert Xiao discovered that the RMI registry implementation in OpenJDK did not properly select the correct skeleton class in some situations. An attacker could use this to possibly escape Java sandbox restrictions. Various other issues were also addressed.

This Metasploit module exploits a flaw in the WSReset.exe file associated with the Windows Store. This binary has autoelevate privs, and it will run a binary file contained in a low-privilege registry location. By placing a link to the binary in the registry location, WSReset.exe will launch the binary as a privileged user.

This Metasploit module will bypass Windows UAC by hijacking a special key in the Registry under the current user hive, and inserting a custom command that will get invoked when Windows backup and restore is launched. It will spawn a second shell that has the UAC flag turned off. This module modifies a registry key, but cleans up the key once the payload has been invoked.

Trend Micro Maximum Security is vulnerable to arbitrary code execution as it allows for creation of registry key to target a process running as SYSTEM. This can allow a malware to gain elevated privileges to take over and shutdown services that require SYSTEM privileges like Trend Micros "Asmp" service "coreServiceShell.exe" which does not allow Administrators to tamper with them. This could allow an attacker or malware to gain elevated privileges and tamper with protected services by disabling or otherwise preventing them to start. Note administrator privileges are required to exploit this vulnerability.

Ubuntu Security Notice 4251-1 - It was discovered that Tomcat incorrectly handled the RMI registry when configured with the JMX Remote Lifecycle Listener. A local attacker could possibly use this issue to obtain credentials and gain complete control over the Tomcat instance. It was discovered that Tomcat incorrectly handled FORM authentication. A remote attacker could possibly use this issue to perform a session fixation attack. Various other issues were also addressed.

IQrouter firmware version 3.3.1 suffers from a remote code execution vulnerability.

NSClient++ version 0.5.2.35 suffers from an authenticated remote code execution vulnerability.

Edimax EW-7438RPn version 1.13 suffers from a remote code execution vulnerability.

Furukawa Electric ConsciusMAP version 2.8.1 java deserialization remote code execution exploit.

School ERP Pro version 1.0 suffers from a remote code execution vulnerability.

Open-AudIT Professional version 3.3.1 suffers from a remote code execution vulnerability.

SimplePHPGal version 0.7 suffers from a remote file inclusion vulnerability.

Saltstack version 3000.1 suffers from a remote code execution vulnerability.

The ManageEngine Asset Explorer windows agent suffers form a remote code execution vulnerability. All versions prior to 1.0.29 are affected.

Rootkit Hunter scans files and systems for known and unknown rootkits, backdoors, and sniffers. The package contains one shell script, a few text-based databases, and optional Perl modules. It should run on almost every Unix variety except Solaris and NetBSD.

Rootkit Hunter scans files and systems for known and unknown rootkits, backdoors, and sniffers. The package contains one shell script, a few text-based databases, and optional Perl modules. It should run on almost every Unix variety except Solaris and NetBSD.

Chkrootkit checks locally for signs of a rootkit. Chkrootkit includes ifpromisc.c to check and see if the interface is in promisc mode, chklastlog.c to check lastlog for deletions, and chkwtmp.c to check wtmp for deletions, strings.c for quick and dirty strings replacement, check_wtmpx.c to check for wtmpx deletions and the files chkproc.c and chkdirs.c to check for LKM trojans. Tested on Linux 2.0.x, 2.2.x and 2.4.x, FreeBSD 2.2.x, 3.x, 4.x, and 5.x, BSDI, OpenBSD 2.6, 2.7, 2.8, 2.9, 3.0 and 3.1, NetBSD 1.5.2 and Solaris 2.5.1, 2.6 and 8.0, and HP-UX 11.

NetBSD mail.local(8) local root exploit that leverages a race condition as noted in NetBSD-SA2016-006.

Rootkit Hunter scans files and systems for known and unknown rootkits, backdoors, and sniffers. The package contains one shell script, a few text-based databases, and optional Perl modules. It should run on almost every Unix variety except Solaris and NetBSD.

The Cisco UCS Director virtual appliance contains two flaws that can be combined and abused by an attacker to achieve remote code execution as root. The first one, CVE-2019-1937, is an authentication bypass, that allows the attacker to authenticate as an administrator. The second one, CVE-2019-1936, is a command injection in a password change form, that allows the attacker to inject commands that will execute as root. This module combines both vulnerabilities to achieve the unauthenticated command injection as root. It has been tested with Cisco UCS Director virtual machines 6.6.0 and 6.7.0. Note that Cisco also mentions in their advisory that their IMC Supervisor and UCS Director Express are also affected by these vulnerabilities, but this module was not tested with those products.

Cisco Content Security Virtual Appliance M380 IronPort remote cross site host modification demo exploit.

Armis has discovered five critical, zero-day vulnerabilities in various implementations of the Cisco Discovery Protocol (CDP) that can allow remote attackers to completely take over devices.

Cisco Data Center Network Manager version 11.2 remote code execution exploit.

Ubuntu Security Notice 3534-1 - It was discovered that the GNU C library did not properly handle all of the possible return values from the kernel getcwd syscall. A local attacker could potentially exploit this to execute arbitrary code in setuid programs and gain administrative privileges. A memory leak was discovered in the _dl_init_paths function in the GNU C library dynamic loader. A local attacker could potentially exploit this with a specially crafted value in the LD_HWCAP_MASK environment variable, in combination with CVE-2017-1000409 and another vulnerability on a system with hardlink protections disabled, in order to gain administrative privileges. Various other issues were also addressed.

Ubuntu Security Notice 3678-1 - Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly handle corrupted meta data in some situations. An attacker could use this to specially craft an ext4 file system that caused a denial of service when mounted. It was discovered that the 802.11 software simulator implementation in the Linux kernel contained a memory leak when handling certain error conditions. A local attacker could possibly use this to cause a denial of service. Various other issues were also addressed.

Ubuntu Security Notice 3678-2 - Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly handle corrupted meta data in some situations. An attacker could use this to specially craft an ext4 file system that caused a denial of service when mounted. It was discovered that the 802.11 software simulator implementation in the Linux kernel contained a memory leak when handling certain error conditions. A local attacker could possibly use this to cause a denial of service. Various other issues were also addressed.

Ubuntu Security Notice 3678-3 - Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly handle corrupted meta data in some situations. An attacker could use this to specially craft an ext4 file system that caused a denial of service when mounted. It was discovered that the 802.11 software simulator implementation in the Linux kernel contained a memory leak when handling certain error conditions. A local attacker could possibly use this to cause a denial of service. Various other issues were also addressed.

Ubuntu Security Notice 3678-4 - Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly handle corrupted meta data in some situations. An attacker could use this to specially craft an ext4 file system that caused a denial of service when mounted. It was discovered that the 802.11 software simulator implementation in the Linux kernel contained a memory leak when handling certain error conditions. A local attacker could possibly use this to cause a denial of service. Various other issues were also addressed.

Ubuntu Security Notice 3785-1 - Due to a large number of issues discovered in GhostScript that prevent it from being used by ImageMagick safely, this update includes a default policy change that disables support for the Postscript and PDF formats in ImageMagick. This policy can be overridden if necessary by using an alternate ImageMagick policy configuration. It was discovered that several memory leaks existed when handling certain images in ImageMagick. An attacker could use this to cause a denial of service. Various other issues were also addressed.

Ubuntu Security Notice 4049-3 - USN-4049-1 fixed a vulnerability in GLib. The update introduced a regression in Ubuntu 16.04 LTS causing a possibly memory leak. This update fixes the problem. It was discovered that GLib created directories and files without properly restricting permissions. An attacker could possibly use this issue to access sensitive information. Various other issues were also addressed.

An information disclosure vulnerability exists when Centaur and TitanSMA fail to properly protect critical system logs such as 'syslog'. Additionally, the implemented Jetty version (9.4.z-SNAPSHOT) suffers from a memory leak of shared buffers that was (supposedly) patched in Jetty version 9.2.9.v20150224.