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91
security advisorygentooarbitrary code executionGentoo: GLSA 201511-01 Normal: MirBSD Korn Shell Arbitrary Code Execution
An attacker who already had access to the environment could so append values to parameters passed through programs.. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201511-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: MirBSD Korn Shell: Arbitrary code execution Date: November 02, 2015 Bugs: #524414 ID: 201511-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= An attacker who already had access to the environment could so append values to parameters passed through programs. Background ========= MirBSD Korn Shell is an actively developed free implementation of the Korn Shell programming language and a successor to the Public Domain Korn Shell. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-shells/mksh < 50c > = 50c Description ========== Improper sanitation of environment import allows for appending of values to passed parameters. Impact ===== An attacker who already had access to the environment could so append values to parameters passed through programs (including sudo(8) or setuid) to shell scripts, including indirectly, after those programs intended to sanitise the environment, e.g. invalidating the last $PATH component. Workaround ========= There is no known workaround at this time. Resolution ========= All mksh users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =app-shells/mksh-50c" References ========= [ 1 ] mksh R50c released, securityfix Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201511-01 Concerns? ======== Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to
Nov 02, 2015
Gentoo
91
security advisorygentoolocal accessGentoo: 200308-03 Moderate: VMware Workstation Local Access Risk
By manipulating the VMware GSX Server and VMware Workstationenvironment variables, a program such as a shell session withroot privileges could be started when a virtual machine islaunched.. - - - --------------------------------------------------------------------- GENTOO LINUX SECURITY ANNOUNCEMENT 200308-03 - - - --------------------------------------------------------------------- PACKAGE : vmware-workstation SUMMARY : local full host access DATE : 2003-08-25 13:44 UTC EXPLOIT : local VERSIONS AFFECTED : =vmware-workstation-3.2.1-2242 CVE : CAN-2003-0480 CAN-2003-0631 - - - --------------------------------------------------------------------- - From advisory: "By manipulating the VMware GSX Server and VMware Workstation environment variables, a program such as a shell session with root privileges could be started when a virtual machine is launched. The user would then have full access to the host." Read the full advisories at: SOLUTION It is recommended that all Gentoo Linux users who are running app-emulation/vmware-workstation upgrade to either vmware-workstation-3.2.1-2242 or vmware-workstation-4.0.1-5289 follows: emerge sync emerge vmware-workstation- emerge clean - - - ---------------------------------------------------------------------
Aug 25, 2003
•Important
Gentoo
98
security advisoryRed Hat LinuxcriticalRed Hat Linux: RHSA-2002:011-06 Critical: Sudo Local Access Exploit
Versions of sudo prior to 1.6.4 would not clear the environment beforesending an email notification about unauthorized sudo attempts, making itpossible for an attacker to supply parameters to the mail program.. ` --------------------------------------------------------------------- Red Hat, Inc. Red Hat Security Advisory Synopsis: Updated sudo packages are available Advisory ID: RHSA-2002:011-06 Issue date: 2002-01-14 Updated on: 2002-01-15 Product: Red Hat Linux Keywords: sudo environment Cross references: Obsoletes: --------------------------------------------------------------------- 1. Topic: Updated sudo packages fixing a security problem are available. 2. Relevant releases/architectures: Red Hat Linux 7.0 - alpha, i386 Red Hat Linux 7.1 - alpha, i386, ia64 Red Hat Linux 7.2 - i386, ia64 3. Problem description: Versions of sudo prior to 1.6.4 would not clear the environment before sending an email notification about unauthorized sudo attempts, making it possible for an attacker to supply parameters to the mail program. In the worst case, this could lead to a local root exploit. Users of sudo are advised to upgrade to version 1.6.4 which is not vulnerable to this issue. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. To update all RPMs for your particular architecture, run: rpm -Fvh [filenames] where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs. Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start aninteractive process that will result in the appropriate RPMs being upgraded on your system. 5. Bug IDs fixed ( for more info): 6. RPMs required: Red Hat Linux 7.0: SRPMS: alpha: i386: Red Hat Linux 7.1: SRPMS: alpha: i386: ia64: Red Hat Linux 7.2: SRPMS: i386: ia64: 7. Verification: MD5 sum Package Name -------------------------------------------------------------------------- 68dfd955e1e8f39fe41a4b7639195f11 7.0/en/os/SRPMS/sudo-1.6.4-0.7x.2.src.rpm ff225f9d53084e29d0d558c8daea95b6 7.0/en/os/alpha/sudo-1.6.4-0.7x.2.alpha.rpm ca088e51c3dd8f172063b0f8d122a5e5 7.0/en/os/i386/sudo-1.6.4-0.7x.2.i386.rpm 68dfd955e1e8f39fe41a4b7639195f11 7.1/en/os/SRPMS/sudo-1.6.4-0.7x.2.src.rpm ff225f9d53084e29d0d558c8daea95b6 7.1/en/os/alpha/sudo-1.6.4-0.7x.2.alpha.rpm ca088e51c3dd8f172063b0f8d122a5e5 7.1/en/os/i386/sudo-1.6.4-0.7x.2.i386.rpm fedccbb28833f82f220ab148fb2cd42a 7.1/en/os/ia64/sudo-1.6.4-0.7x.2.ia64.rpm 68dfd955e1e8f39fe41a4b7639195f11 7.2/en/os/SRPMS/sudo-1.6.4-0.7x.2.src.rpm ca088e51c3dd8f172063b0f8d122a5e5 7.2/en/os/i386/sudo-1.6.4-0.7x.2.i386.rpm fedccbb28833f82f220ab148fb2cd42a 7.2/en/os/ia64/sudo-1.6.4-0.7x.2.ia64.rpm These packages are GPG signed by Red Hat, Inc. for security. Our key is available at: About You can verify each package with the following command: rpm --checksig If you only wish to verify that each package has not been corrupted or tampered with, examine only the md5sum with the following command: rpm --checksig --nogpg 8. References: Sudo Manual | Sudo Copyright(c) 2000, 2001, 2002 Red Hat, Inc. `. Recent enhancements to sudo components have been introduced to address local privilege escalation weaknesses resulting from illicit email notifications found in earlier iterations.. Red Hat Advisory,Sudo Exploit,Update Security,Local Access Rights,Root Privilege Escalation. . Severity: Critical. LinuxSecurity.com Team
Jan 15, 2002
•Critical
Red Hat
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