Ubuntu Security Notice 4333-1 - It was discovered that Python incorrectly stripped certain characters from requests. A remote attacker could use this issue to perform CRLF injection. It was discovered that Python incorrectly handled certain HTTP requests. An attacker could possibly use this issue to cause a denial of service.

With Windows 2000 Microsoft introduced the inheritance of access rights and new Win32-API functions like SetNamedSecurityInfo() which handle the inheritance. SetNamedSecurityInfo() but has a serious bug: it applies inheritable ACEs from a PARENT object to a target object even if it must not do so, indicated by the flags SE_DACL_PROTECTED and/or SE_SACL_PROTECTED in the security descriptor of the target object.

CentOS-WebPanel.com Control Web Panel (CWP) version 0.9.8.836 suffers from a remote command execution vulnerability.

DotNetNuke CMS version 9.5.0 suffers from file extension check bypass vulnerability that allows for arbitrary file upload.

Ubuntu Security Notice 4171-5 - USN-4171-1 fixed vulnerabilities in Apport. This caused a regression in autopkgtest and python2 compatibility. This update fixes the problem. Kevin Backhouse discovered Apport would read its user-controlled settings file as the root user. This could be used by a local attacker to possibly crash Apport or have other unspecified consequences. Sander Bos discovered a race-condition in Apport during core dump creation. This could be used by a local attacker to generate a crash report for a privileged process that is readable by an unprivileged user. Sander Bos discovered Apport mishandled crash dumps originating from containers. This could be used by a local attacker to generate a crash report for a privileged process that is readable by an unprivileged user. Sander Bos discovered Apport mishandled lock-file creation. This could be used by a local attacker to cause a denial of service against Apport. Kevin Backhouse discovered Apport read various process-specific files with elevated privileges during crash dump generation. This could could be used by a local attacker to generate a crash report for a privileged process that is readable by an unprivileged user. Various other issues were also addressed.

The Mandos system allows computers to have encrypted root file systems and at the same time be capable of remote or unattended reboots. The computers run a small client program in the initial RAM disk environment which will communicate with a server over a network. All network communication is encrypted using TLS. The clients are identified by the server using an OpenPGP key that is unique to each client. The server sends the clients an encrypted password. The encrypted password is decrypted by the clients using the same OpenPGP key, and the password is then used to unlock the root file system.

Linux kernel versions starting at 4.10 and below 5.1.7 PTRACE_TRACEME local root exploit that uses the pkexec technique.

rConfig version 3.9.4 searchField unauthenticated remote root code execution exploit.

Ubuntu Security Notice 4312-1 - Matthias Gerstner discovered that Timeshift did not securely create temporary files. An attacker could exploit a race condition in Timeshift and potentially execute arbitrary commands as root.

This Metasploit module exploits command injection vulnerability in v-list-user-backups bash script file. Low privileged authenticated users can execute arbitrary commands under the context of the root user. An authenticated attacker with a low privileges can inject a payload in the file name starts with dot. During the user backup process, this file name will be evaluated by the v-user-backup bash scripts. As result of that backup process, when an attacker try to list existing backups injected payload will be executed.

Linux versions 5.3 and above appear to have an issue where io_uring suffers from insecure handling of the root directory for path lookups.

This Metasploit module exploits an authenticated command injection vulnerability in the v-list-user-backups bash script file in Vesta Control Panel to gain remote code execution as the root user.

This Metasploit module exploits a command injection vulnerability in the tdpServer daemon (/usr/bin/tdpServer), running on the router TP-Link Archer A7/C7 (AC1750), hardware version 5, MIPS Architecture, firmware version 190726. The vulnerability can only be exploited by an attacker on the LAN side of the router, but the attacker does not need any authentication to abuse it. After exploitation, an attacker will be able to execute any command as root, including downloading and executing a binary from another host. This vulnerability was discovered and exploited at Pwn2Own Tokyo 2019 by the Flashback team.

107 bytes small Linux/x86 shellcode that adds the user 'ctl' with the password 'ctl' to the /etc/passwd file with the UID and GID of 0 (root). This shellcode uses legacy passwd functionality. Therefore the /etc/shadow file does not need to be accessed or modified.

155 bytes small Linux/x86 shellcode that has a MMX stub decoder that dynamically decodes the payload in memory. The FPU GetPC technique is used to determine the offset from EIP dynamically in running memory. Once decoded. this shellcode adds the user 'ctl' with the password 'ctl' to the /etc/passwd file with the UID and GID of 0 (root). This shellcode uses legacy passwd functionality. Therefore the /etc/shadow file does not need to be accessed or modified.

This Metasploit module exploits a Java unmarshalling vulnerability via JSONWS in Liferay Portal versions prior to 6.2.5 GA6, 7.0.6 GA7, 7.1.3 GA4, and 7.2.1 GA2 to execute code as the Liferay user. Tested against 7.2.0 GA1.

This Metasploit module exploits a Java Expression Language (EL) injection in Nexus Repository Manager versions up to and including 3.21.1 to execute code as the Nexus user. Tested against 3.21.1-01.

Online Clothing Store version 1.0 suffers from a persistent cross site scripting vulnerability.

Grub2 has grub2-set-bootflag setuid in the new Fedora release and has the ability to corrupt the environment.

netkit-telnet version 0.17 telnetd on Fedora 31 BraveStarr remote code execution exploit.

Ubuntu Security Notice 4197-1 - It was discovered that Bind incorrectly handled certain TCP-pipelined queries. A remote attacker could possibly use this issue to cause Bind to consume resources, resulting in a denial of service.

This exploit uses the Cable Haunt vulnerability to open a shell for the Sagemcom F@ST 3890 (50_10_19-T1) cable modem. The exploit serves a website that sends a malicious websocket request to the cable modem. The request will overflow a return address in the spectrum analyzer of the cable modem and using a rop chain start listening for a tcp connection on port 1337. The server will then send a payload over this tcp connection and the modem will start executing the payload. The payload will listen for commands to be run in the eCos shell on the cable modem and redirect STDOUT to the tcp connection.

This whitepaper provides an overview of the MQTT protocol. MQTT is a is an open OASIS and ISO standard (ISO/IEC PRF 20922) lightweight, simple machine to machine TCP/IP based protocol which can be used for communication between IoT devices.

NEC Univerge SV9100/SV8100 WebPro version 10.0 suffers from a remote configuration download vulnerability. The gzipped telephone system configuration file 'config.gz' or 'config.pcpx' that contains the unencrypted data file 'conf.pcpn', can be downloaded by an attacker from the root directory if previously generated by a privileged user.

This is a whitepaper tutorial that walks through creating a proof of concept exploit for a remote command execution vulnerability in NagiosXI version 5.6.

This is a whitepaper tutorial that walks through creating a proof of concept exploit for a pre-authentication remote command execution vulnerability in Symantec Web Gateway version 5.0.2.8.

This is a whitepaper tutorial that describes steps taken to identify post-authentication remote command execution vulnerabilities in NagiosXI version 5.6.11.

This is a whitepaper tutorial that describes steps taken to identify post-authentication remote code execution vulnerabilities in ManageEngine version 14.